EP3237904A1 - Procédés de détermination d'état et de qualité de produits pétroliers - Google Patents
Procédés de détermination d'état et de qualité de produits pétroliersInfo
- Publication number
- EP3237904A1 EP3237904A1 EP15825722.0A EP15825722A EP3237904A1 EP 3237904 A1 EP3237904 A1 EP 3237904A1 EP 15825722 A EP15825722 A EP 15825722A EP 3237904 A1 EP3237904 A1 EP 3237904A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- compounds
- taggant
- product
- immunoassay
- acid
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 238000000034 method Methods 0.000 title claims abstract description 78
- 239000003209 petroleum derivative Substances 0.000 title description 36
- 238000003018 immunoassay Methods 0.000 claims abstract description 67
- 230000015556 catabolic process Effects 0.000 claims abstract description 49
- 238000006731 degradation reaction Methods 0.000 claims abstract description 49
- 230000004044 response Effects 0.000 claims abstract description 22
- 238000012544 monitoring process Methods 0.000 claims abstract description 19
- 239000010705 motor oil Substances 0.000 claims abstract description 18
- 230000001050 lubricating effect Effects 0.000 claims abstract description 16
- -1 amide compounds Chemical class 0.000 claims description 145
- 239000000203 mixture Substances 0.000 claims description 102
- 150000001875 compounds Chemical class 0.000 claims description 63
- 239000000314 lubricant Substances 0.000 claims description 59
- 239000010687 lubricating oil Substances 0.000 claims description 51
- 239000000654 additive Substances 0.000 claims description 49
- 239000003921 oil Substances 0.000 claims description 49
- 239000002199 base oil Substances 0.000 claims description 44
- 229910052751 metal Inorganic materials 0.000 claims description 42
- 239000002184 metal Substances 0.000 claims description 42
- 239000012530 fluid Substances 0.000 claims description 38
- 238000012360 testing method Methods 0.000 claims description 37
- 150000002989 phenols Chemical class 0.000 claims description 18
- 229910052717 sulfur Inorganic materials 0.000 claims description 16
- 239000011593 sulfur Substances 0.000 claims description 16
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 15
- 230000003647 oxidation Effects 0.000 claims description 13
- 238000007254 oxidation reaction Methods 0.000 claims description 13
- 230000001590 oxidative effect Effects 0.000 claims description 13
- 150000007513 acids Chemical class 0.000 claims description 11
- 238000011109 contamination Methods 0.000 claims description 11
- 230000002378 acidificating effect Effects 0.000 claims description 10
- 150000001298 alcohols Chemical class 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 10
- 230000002829 reductive effect Effects 0.000 claims description 10
- 239000002480 mineral oil Substances 0.000 claims description 9
- 239000003518 caustics Substances 0.000 claims description 8
- 239000000356 contaminant Substances 0.000 claims description 8
- 239000000446 fuel Substances 0.000 claims description 8
- 150000001491 aromatic compounds Chemical class 0.000 claims description 7
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 7
- 229910052760 oxygen Inorganic materials 0.000 claims description 7
- 239000001301 oxygen Substances 0.000 claims description 7
- 150000007514 bases Chemical class 0.000 claims description 5
- 229920001971 elastomer Polymers 0.000 claims description 5
- 239000000806 elastomer Substances 0.000 claims description 5
- 238000000638 solvent extraction Methods 0.000 claims description 5
- 150000002391 heterocyclic compounds Chemical class 0.000 claims description 4
- OPWRODKDBZEVLP-UHFFFAOYSA-N n-[2-(1h-indol-3-yl)ethyl]heptadecanamide Chemical compound C1=CC=C2C(CCNC(=O)CCCCCCCCCCCCCCCC)=CNC2=C1 OPWRODKDBZEVLP-UHFFFAOYSA-N 0.000 claims description 4
- 230000002000 scavenging effect Effects 0.000 claims description 4
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 3
- 238000005555 metalworking Methods 0.000 claims description 3
- 230000009467 reduction Effects 0.000 claims description 3
- UIKROCXWUNQSPJ-VIFPVBQESA-N (-)-cotinine Chemical compound C1CC(=O)N(C)[C@@H]1C1=CC=CN=C1 UIKROCXWUNQSPJ-VIFPVBQESA-N 0.000 claims description 2
- CXIYNQMIFYYQJC-WHFBIAKZSA-N (2s)-2-[[(2s)-2-azaniumylbutanoyl]amino]propanoate Chemical compound CC[C@H]([NH3+])C(=O)N[C@@H](C)C([O-])=O CXIYNQMIFYYQJC-WHFBIAKZSA-N 0.000 claims description 2
- JEBHNKYSIIPZJL-UHFFFAOYSA-N 1-(1-adamantyl)piperidin-2-one Chemical compound O=C1CCCCN1C1(C2)CC(C3)CC2CC3C1 JEBHNKYSIIPZJL-UHFFFAOYSA-N 0.000 claims description 2
- RFWMNINIOHFAEJ-UHFFFAOYSA-N 1-decyl-4-methylpiperidin-2-one Chemical compound CC1CC(N(CC1)CCCCCCCCCC)=O RFWMNINIOHFAEJ-UHFFFAOYSA-N 0.000 claims description 2
- DNCYBUMDUBHIJZ-UHFFFAOYSA-N 1h-pyrimidin-6-one Chemical compound O=C1C=CN=CN1 DNCYBUMDUBHIJZ-UHFFFAOYSA-N 0.000 claims description 2
- JONWDDCKNVVMBS-UHFFFAOYSA-N 2-azaspiro[4.4]nonan-3-one Chemical compound C1NC(=O)CC11CCCC1 JONWDDCKNVVMBS-UHFFFAOYSA-N 0.000 claims description 2
- YXTWCCJCYBPHGQ-UHFFFAOYSA-N 2-azaspiro[4.6]undecan-3-one Chemical compound C1NC(=O)CC21CCCCCC2 YXTWCCJCYBPHGQ-UHFFFAOYSA-N 0.000 claims description 2
- GPUBPSKTFNYPHI-AYGRAXKESA-N 3-[5-[(3as,4s,6ar)-2-oxo-1,3,3a,4,6,6a-hexahydrothieno[3,4-d]imidazol-4-yl]pentanoyl]-1-hydroxypyrrolidine-2,5-dione Chemical compound O=C1N(O)C(=O)CC1C(=O)CCCC[C@H]1[C@H]2NC(=O)N[C@H]2CS1 GPUBPSKTFNYPHI-AYGRAXKESA-N 0.000 claims description 2
- NBYATBIMYLFITE-UHFFFAOYSA-N 3-[decyl(dimethyl)silyl]-n-[2-(4-methylphenyl)-1-phenylethyl]propanamide Chemical compound C=1C=CC=CC=1C(NC(=O)CC[Si](C)(C)CCCCCCCCCC)CC1=CC=C(C)C=C1 NBYATBIMYLFITE-UHFFFAOYSA-N 0.000 claims description 2
- ZBCUGJNJBOSHIA-UHFFFAOYSA-N 4-ethylpyrrolidin-2-one Chemical compound CCC1CNC(=O)C1 ZBCUGJNJBOSHIA-UHFFFAOYSA-N 0.000 claims description 2
- NSWPZHFBKLOKIA-UHFFFAOYSA-N CC1CC(N(CC1)CCCCCCCCCCC)=O Chemical compound CC1CC(N(CC1)CCCCCCCCCCC)=O NSWPZHFBKLOKIA-UHFFFAOYSA-N 0.000 claims description 2
- WLLGXSLBOPFWQV-UHFFFAOYSA-N MGK 264 Chemical compound C1=CC2CC1C1C2C(=O)N(CC(CC)CCCC)C1=O WLLGXSLBOPFWQV-UHFFFAOYSA-N 0.000 claims description 2
- LQPINJBBNVSTDE-UHFFFAOYSA-N Nb-Lignoceroyltryptamine Chemical compound C1=CC=C2C(CCNC(=O)CCCCCCCCCCCCCCCCCCCCCCC)=CNC2=C1 LQPINJBBNVSTDE-UHFFFAOYSA-N 0.000 claims description 2
- DFPAKSUCGFBDDF-UHFFFAOYSA-N Nicotinamide Chemical compound NC(=O)C1=CC=CN=C1 DFPAKSUCGFBDDF-UHFFFAOYSA-N 0.000 claims description 2
- 230000002528 anti-freeze Effects 0.000 claims description 2
- 239000007865 axle lubricant Substances 0.000 claims description 2
- UYCSCAFSVRPVEP-QGTPRVQTSA-N benzyl N-[(2S,3S)-1-[[(2R)-1-amino-1-oxo-3-phenylpropan-2-yl]amino]-3-hydroxy-1-oxobutan-2-yl]carbamate Chemical compound NC([C@@H](CC1=CC=CC=C1)NC(=O)[C@H]([C@H](C)O)NC(OCC1=CC=CC=C1)=O)=O UYCSCAFSVRPVEP-QGTPRVQTSA-N 0.000 claims description 2
- XZOWIJDBQIHMFC-UHFFFAOYSA-N butanamide Chemical compound CCCC(N)=O.CCCC(N)=O XZOWIJDBQIHMFC-UHFFFAOYSA-N 0.000 claims description 2
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims description 2
- QWMPXTNXXREMCK-UHFFFAOYSA-N ethyl 5-oxopyrrolidine-3-carboxylate Chemical compound CCOC(=O)C1CNC(=O)C1 QWMPXTNXXREMCK-UHFFFAOYSA-N 0.000 claims description 2
- 238000013507 mapping Methods 0.000 claims description 2
- NGHTXZCKLWZPGK-UHFFFAOYSA-N nefiracetam Chemical compound CC1=CC=CC(C)=C1NC(=O)CN1C(=O)CCC1 NGHTXZCKLWZPGK-UHFFFAOYSA-N 0.000 claims description 2
- HJORMJIFDVBMOB-UHFFFAOYSA-N rolipram Chemical compound COC1=CC=C(C2CC(=O)NC2)C=C1OC1CCCC1 HJORMJIFDVBMOB-UHFFFAOYSA-N 0.000 claims description 2
- SLCAHLSQXDNQSF-UHFFFAOYSA-N tert-butyl 2,4-dioxopiperidine-1-carboxylate Chemical compound CC(C)(C)OC(=O)N1CCC(=O)CC1=O SLCAHLSQXDNQSF-UHFFFAOYSA-N 0.000 claims description 2
- KFEBWCYYRFZMTJ-UHFFFAOYSA-N (2,5-dioxopyrrolidin-1-yl) 7-hydroxy-2-oxochromene-3-carboxylate Chemical compound O=C1OC2=CC(O)=CC=C2C=C1C(=O)ON1C(=O)CCC1=O KFEBWCYYRFZMTJ-UHFFFAOYSA-N 0.000 claims 1
- KVHGJAKTBPFFNV-UHFFFAOYSA-N 2-(1-hydroxyundecyl)-1-(4-nitroanilino)-6-phenyl-4a,7a-dihydro-2h-pyrrolo[3,4-b]pyridine-5,7-dione Chemical compound CCCCCCCCCCC(O)C1C=CC(C(N(C2=O)C=3C=CC=CC=3)=O)C2N1NC1=CC=C([N+]([O-])=O)C=C1 KVHGJAKTBPFFNV-UHFFFAOYSA-N 0.000 claims 1
- NRQVXWNPFZZDMQ-UHFFFAOYSA-N 5,8,8-trimethyl-3-azabicyclo[3.2.1]octane-2,4-dione Chemical compound O=C1NC(=O)C2(C)CCC1C2(C)C NRQVXWNPFZZDMQ-UHFFFAOYSA-N 0.000 claims 1
- 125000001797 benzyl group Chemical group [H]C1=C([H])C([H])=C(C([H])=C1[H])C([H])([H])* 0.000 claims 1
- FHHMWJMUMOYGQW-UHFFFAOYSA-N ethyl 2-oxopyrrolidine-3-carboxylate Chemical compound CCOC(=O)C1CCNC1=O FHHMWJMUMOYGQW-UHFFFAOYSA-N 0.000 claims 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims 1
- MXMXHPPIGKYTAR-UHFFFAOYSA-N silthiofam Chemical compound CC=1SC([Si](C)(C)C)=C(C(=O)NCC=C)C=1C MXMXHPPIGKYTAR-UHFFFAOYSA-N 0.000 claims 1
- 239000000047 product Substances 0.000 description 103
- 239000002270 dispersing agent Substances 0.000 description 52
- 235000019198 oils Nutrition 0.000 description 48
- 239000003599 detergent Substances 0.000 description 47
- 239000002585 base Substances 0.000 description 40
- 229920000642 polymer Polymers 0.000 description 31
- 150000002148 esters Chemical class 0.000 description 30
- 239000000463 material Substances 0.000 description 30
- 239000001993 wax Substances 0.000 description 28
- 125000001183 hydrocarbyl group Chemical group 0.000 description 22
- 239000000126 substance Substances 0.000 description 22
- 239000003795 chemical substances by application Substances 0.000 description 20
- 125000003118 aryl group Chemical group 0.000 description 19
- 239000004034 viscosity adjusting agent Substances 0.000 description 19
- 150000002430 hydrocarbons Chemical class 0.000 description 17
- 239000003550 marker Substances 0.000 description 17
- 229920005862 polyol Polymers 0.000 description 17
- 239000002253 acid Substances 0.000 description 16
- 125000000217 alkyl group Chemical group 0.000 description 16
- 239000003963 antioxidant agent Substances 0.000 description 16
- 235000006708 antioxidants Nutrition 0.000 description 16
- 229930195733 hydrocarbon Natural products 0.000 description 16
- 125000004432 carbon atom Chemical group C* 0.000 description 15
- 239000003607 modifier Substances 0.000 description 14
- 229920013639 polyalphaolefin Polymers 0.000 description 14
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerol Natural products OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 13
- 150000001412 amines Chemical class 0.000 description 13
- 238000009472 formulation Methods 0.000 description 13
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 12
- 239000003054 catalyst Substances 0.000 description 12
- 238000001514 detection method Methods 0.000 description 12
- 235000014113 dietary fatty acids Nutrition 0.000 description 12
- 239000000194 fatty acid Substances 0.000 description 12
- 229930195729 fatty acid Natural products 0.000 description 12
- 230000008569 process Effects 0.000 description 12
- 150000003839 salts Chemical class 0.000 description 12
- 230000000996 additive effect Effects 0.000 description 11
- 239000011777 magnesium Substances 0.000 description 11
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 11
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 10
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 10
- 150000001336 alkenes Chemical class 0.000 description 10
- 239000011575 calcium Substances 0.000 description 10
- 229910052749 magnesium Inorganic materials 0.000 description 10
- 229920002367 Polyisobutene Polymers 0.000 description 9
- 125000001931 aliphatic group Chemical group 0.000 description 9
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 9
- 229910052791 calcium Inorganic materials 0.000 description 9
- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical class C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 description 9
- POULHZVOKOAJMA-UHFFFAOYSA-N dodecanoic acid ester group Chemical class C(CCCCCCCCCCC)(=O)O POULHZVOKOAJMA-UHFFFAOYSA-N 0.000 description 9
- 239000003112 inhibitor Substances 0.000 description 9
- 150000003077 polyols Chemical class 0.000 description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 8
- 238000004458 analytical method Methods 0.000 description 8
- WQEPLUUGTLDZJY-UHFFFAOYSA-N pentadecanoic acid Chemical class CCCCCCCCCCCCCCC(O)=O WQEPLUUGTLDZJY-UHFFFAOYSA-N 0.000 description 8
- 239000002904 solvent Substances 0.000 description 8
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 7
- OFOBLEOULBTSOW-UHFFFAOYSA-N Propanedioic acid Natural products OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 7
- 150000001342 alkaline earth metals Chemical class 0.000 description 7
- 239000002518 antifoaming agent Substances 0.000 description 7
- 229920001577 copolymer Polymers 0.000 description 7
- GHVNFZFCNZKVNT-UHFFFAOYSA-N decanoic acid Chemical class CCCCCCCCCC(O)=O GHVNFZFCNZKVNT-UHFFFAOYSA-N 0.000 description 7
- 239000003085 diluting agent Substances 0.000 description 7
- UKMSUNONTOPOIO-UHFFFAOYSA-N docosanoic acid Chemical class CCCCCCCCCCCCCCCCCCCCCC(O)=O UKMSUNONTOPOIO-UHFFFAOYSA-N 0.000 description 7
- IPCSVZSSVZVIGE-UHFFFAOYSA-N hexadecanoic acid Chemical compound CCCCCCCCCCCCCCCC(O)=O IPCSVZSSVZVIGE-UHFFFAOYSA-N 0.000 description 7
- 239000007788 liquid Substances 0.000 description 7
- 238000004519 manufacturing process Methods 0.000 description 7
- 150000007522 mineralic acids Chemical class 0.000 description 7
- WWZKQHOCKIZLMA-UHFFFAOYSA-N octanoic acid Chemical class CCCCCCCC(O)=O WWZKQHOCKIZLMA-UHFFFAOYSA-N 0.000 description 7
- 235000013824 polyphenols Nutrition 0.000 description 7
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 229910001868 water Inorganic materials 0.000 description 7
- VQTUBCCKSQIDNK-UHFFFAOYSA-N Isobutene Chemical compound CC(C)=C VQTUBCCKSQIDNK-UHFFFAOYSA-N 0.000 description 6
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 6
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 6
- KDYFGRWQOYBRFD-UHFFFAOYSA-N Succinic acid Natural products OC(=O)CCC(O)=O KDYFGRWQOYBRFD-UHFFFAOYSA-N 0.000 description 6
- 150000004982 aromatic amines Chemical class 0.000 description 6
- ZMRQTIAUOLVKOX-UHFFFAOYSA-L calcium;diphenoxide Chemical compound [Ca+2].[O-]C1=CC=CC=C1.[O-]C1=CC=CC=C1 ZMRQTIAUOLVKOX-UHFFFAOYSA-L 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 6
- VKOBVWXKNCXXDE-UHFFFAOYSA-N icosanoic acid Chemical class CCCCCCCCCCCCCCCCCCCC(O)=O VKOBVWXKNCXXDE-UHFFFAOYSA-N 0.000 description 6
- 239000000178 monomer Substances 0.000 description 6
- 229910052757 nitrogen Inorganic materials 0.000 description 6
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical class CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 6
- 150000007524 organic acids Chemical class 0.000 description 6
- 239000003208 petroleum Substances 0.000 description 6
- 239000002530 phenolic antioxidant Substances 0.000 description 6
- 229910052698 phosphorus Inorganic materials 0.000 description 6
- 239000011574 phosphorus Substances 0.000 description 6
- 229920000058 polyacrylate Polymers 0.000 description 6
- 229920000193 polymethacrylate Polymers 0.000 description 6
- RINCXYDBBGOEEQ-UHFFFAOYSA-N succinic anhydride Chemical class O=C1CCC(=O)O1 RINCXYDBBGOEEQ-UHFFFAOYSA-N 0.000 description 6
- KZNICNPSHKQLFF-UHFFFAOYSA-N succinimide Chemical class O=C1CCC(=O)N1 KZNICNPSHKQLFF-UHFFFAOYSA-N 0.000 description 6
- WMYJOZQKDZZHAC-UHFFFAOYSA-H trizinc;dioxido-sulfanylidene-sulfido-$l^{5}-phosphane Chemical class [Zn+2].[Zn+2].[Zn+2].[O-]P([O-])([S-])=S.[O-]P([O-])([S-])=S WMYJOZQKDZZHAC-UHFFFAOYSA-H 0.000 description 6
- 239000004711 α-olefin Substances 0.000 description 6
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 5
- AFFLGGQVNFXPEV-UHFFFAOYSA-N 1-decene Chemical compound CCCCCCCCC=C AFFLGGQVNFXPEV-UHFFFAOYSA-N 0.000 description 5
- CRSBERNSMYQZNG-UHFFFAOYSA-N 1-dodecene Chemical compound CCCCCCCCCCC=C CRSBERNSMYQZNG-UHFFFAOYSA-N 0.000 description 5
- FALRKNHUBBKYCC-UHFFFAOYSA-N 2-(chloromethyl)pyridine-3-carbonitrile Chemical class ClCC1=NC=CC=C1C#N FALRKNHUBBKYCC-UHFFFAOYSA-N 0.000 description 5
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 5
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 5
- 239000004215 Carbon black (E152) Substances 0.000 description 5
- 241000282326 Felis catus Species 0.000 description 5
- 239000005642 Oleic acid Substances 0.000 description 5
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 5
- 235000021355 Stearic acid Nutrition 0.000 description 5
- 229910052783 alkali metal Inorganic materials 0.000 description 5
- 150000001340 alkali metals Chemical class 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 5
- WTEOIRVLGSZEPR-UHFFFAOYSA-N boron trifluoride Chemical compound FB(F)F WTEOIRVLGSZEPR-UHFFFAOYSA-N 0.000 description 5
- 150000004665 fatty acids Chemical class 0.000 description 5
- XMHIUKTWLZUKEX-UHFFFAOYSA-N hexacosanoic acid Chemical class CCCCCCCCCCCCCCCCCCCCCCCCCC(O)=O XMHIUKTWLZUKEX-UHFFFAOYSA-N 0.000 description 5
- ZSIAUFGUXNUGDI-UHFFFAOYSA-N hexan-1-ol Chemical compound CCCCCCO ZSIAUFGUXNUGDI-UHFFFAOYSA-N 0.000 description 5
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 5
- 238000005259 measurement Methods 0.000 description 5
- UFWIBTONFRDIAS-UHFFFAOYSA-N naphthalene-acid Natural products C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 5
- 230000007935 neutral effect Effects 0.000 description 5
- ISYWECDDZWTKFF-UHFFFAOYSA-N nonadecanoic acid Chemical class CCCCCCCCCCCCCCCCCCC(O)=O ISYWECDDZWTKFF-UHFFFAOYSA-N 0.000 description 5
- FBUKVWPVBMHYJY-UHFFFAOYSA-N nonanoic acid Chemical class CCCCCCCCC(O)=O FBUKVWPVBMHYJY-UHFFFAOYSA-N 0.000 description 5
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 5
- 229940014800 succinic anhydride Drugs 0.000 description 5
- SZHOJFHSIKHZHA-UHFFFAOYSA-N tridecanoic acid Chemical class CCCCCCCCCCCCC(O)=O SZHOJFHSIKHZHA-UHFFFAOYSA-N 0.000 description 5
- ZDPHROOEEOARMN-UHFFFAOYSA-N undecanoic acid Chemical class CCCCCCCCCCC(O)=O ZDPHROOEEOARMN-UHFFFAOYSA-N 0.000 description 5
- 235000021357 Behenic acid Nutrition 0.000 description 4
- IRIAEXORFWYRCZ-UHFFFAOYSA-N Butylbenzyl phthalate Chemical compound CCCCOC(=O)C1=CC=CC=C1C(=O)OCC1=CC=CC=C1 IRIAEXORFWYRCZ-UHFFFAOYSA-N 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 4
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 4
- 239000005977 Ethylene Substances 0.000 description 4
- 238000005727 Friedel-Crafts reaction Methods 0.000 description 4
- 239000005639 Lauric acid Substances 0.000 description 4
- MQHWFIOJQSCFNM-UHFFFAOYSA-L Magnesium salicylate Chemical compound [Mg+2].OC1=CC=CC=C1C([O-])=O.OC1=CC=CC=C1C([O-])=O MQHWFIOJQSCFNM-UHFFFAOYSA-L 0.000 description 4
- 229910019142 PO4 Inorganic materials 0.000 description 4
- 235000021314 Palmitic acid Nutrition 0.000 description 4
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 4
- 125000002877 alkyl aryl group Chemical group 0.000 description 4
- 150000001408 amides Chemical class 0.000 description 4
- 239000007866 anti-wear additive Substances 0.000 description 4
- AVVIDTZRJBSXML-UHFFFAOYSA-L calcium;2-carboxyphenolate;dihydrate Chemical compound O.O.[Ca+2].OC1=CC=CC=C1C([O-])=O.OC1=CC=CC=C1C([O-])=O AVVIDTZRJBSXML-UHFFFAOYSA-L 0.000 description 4
- 229910052799 carbon Inorganic materials 0.000 description 4
- 230000003197 catalytic effect Effects 0.000 description 4
- 239000007795 chemical reaction product Substances 0.000 description 4
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- 239000003350 kerosene Substances 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- BSABBBMNWQWLLU-UHFFFAOYSA-N lactaldehyde Chemical class CC(O)C=O BSABBBMNWQWLLU-UHFFFAOYSA-N 0.000 description 1
- 239000010699 lard oil Substances 0.000 description 1
- 230000031700 light absorption Effects 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 238000004811 liquid chromatography Methods 0.000 description 1
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 description 1
- 239000000347 magnesium hydroxide Substances 0.000 description 1
- 229910001862 magnesium hydroxide Inorganic materials 0.000 description 1
- VZCYOOQTPOCHFL-UPHRSURJSA-N maleic acid Chemical compound OC(=O)\C=C/C(O)=O VZCYOOQTPOCHFL-UPHRSURJSA-N 0.000 description 1
- 239000011976 maleic acid Substances 0.000 description 1
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 150000002736 metal compounds Chemical class 0.000 description 1
- 229910000000 metal hydroxide Inorganic materials 0.000 description 1
- 150000004692 metal hydroxides Chemical class 0.000 description 1
- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
- 125000005395 methacrylic acid group Chemical group 0.000 description 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- KHYKFSXXGRUKRE-UHFFFAOYSA-J molybdenum(4+) tetracarbamodithioate Chemical class C(N)([S-])=S.[Mo+4].C(N)([S-])=S.C(N)([S-])=S.C(N)([S-])=S KHYKFSXXGRUKRE-UHFFFAOYSA-J 0.000 description 1
- 150000002762 monocarboxylic acid derivatives Chemical class 0.000 description 1
- 125000000896 monocarboxylic acid group Chemical group 0.000 description 1
- 150000002780 morpholines Chemical class 0.000 description 1
- 125000001421 myristyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- BQLZCNHPJNMDIO-UHFFFAOYSA-N n-(4-octylphenyl)naphthalen-1-amine Chemical compound C1=CC(CCCCCCCC)=CC=C1NC1=CC=CC2=CC=CC=C12 BQLZCNHPJNMDIO-UHFFFAOYSA-N 0.000 description 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical compound CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 1
- OFBQJSOFQDEBGM-UHFFFAOYSA-N n-pentane Natural products CCCCC OFBQJSOFQDEBGM-UHFFFAOYSA-N 0.000 description 1
- SNWVRVDHQRBBFG-UHFFFAOYSA-N n-phenyl-n-(2,4,4-trimethylpentan-2-yl)naphthalen-1-amine Chemical compound C=1C=CC2=CC=CC=C2C=1N(C(C)(C)CC(C)(C)C)C1=CC=CC=C1 SNWVRVDHQRBBFG-UHFFFAOYSA-N 0.000 description 1
- 150000002791 naphthoquinones Chemical class 0.000 description 1
- 125000001624 naphthyl group Chemical group 0.000 description 1
- SLCVBVWXLSEKPL-UHFFFAOYSA-N neopentyl glycol Chemical compound OCC(C)(C)CO SLCVBVWXLSEKPL-UHFFFAOYSA-N 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 125000001400 nonyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- SNQQPOLDUKLAAF-UHFFFAOYSA-N nonylphenol Chemical compound CCCCCCCCCC1=CC=CC=C1O SNQQPOLDUKLAAF-UHFFFAOYSA-N 0.000 description 1
- 230000000269 nucleophilic effect Effects 0.000 description 1
- GJYXGIIWJFZCLN-UHFFFAOYSA-N octane-2,4-dione Chemical compound CCCCC(=O)CC(C)=O GJYXGIIWJFZCLN-UHFFFAOYSA-N 0.000 description 1
- 125000002347 octyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000001117 oleyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])/C([H])=C([H])\C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 150000002895 organic esters Chemical class 0.000 description 1
- 239000011368 organic material Substances 0.000 description 1
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- 150000002902 organometallic compounds Chemical class 0.000 description 1
- 125000002524 organometallic group Chemical group 0.000 description 1
- 238000006864 oxidative decomposition reaction Methods 0.000 description 1
- 238000010525 oxidative degradation reaction Methods 0.000 description 1
- 230000036542 oxidative stress Effects 0.000 description 1
- 150000004880 oxines Chemical class 0.000 description 1
- 150000002943 palmitic acids Chemical class 0.000 description 1
- 238000005325 percolation Methods 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- JRKICGRDRMAZLK-UHFFFAOYSA-L persulfate group Chemical group S(=O)(=O)([O-])OOS(=O)(=O)[O-] JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 description 1
- 125000001484 phenothiazinyl group Chemical class C1(=CC=CC=2SC3=CC=CC=C3NC12)* 0.000 description 1
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N phenylbenzene Natural products C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 1
- 150000004031 phenylhydrazines Chemical class 0.000 description 1
- ZWLUXSQADUDCSB-UHFFFAOYSA-N phthalaldehyde Chemical class O=CC1=CC=CC=C1C=O ZWLUXSQADUDCSB-UHFFFAOYSA-N 0.000 description 1
- XKJCHHZQLQNZHY-UHFFFAOYSA-N phthalimide Chemical compound C1=CC=C2C(=O)NC(=O)C2=C1 XKJCHHZQLQNZHY-UHFFFAOYSA-N 0.000 description 1
- SIOXPEMLGUPBBT-UHFFFAOYSA-N picolinic acid Chemical class OC(=O)C1=CC=CC=N1 SIOXPEMLGUPBBT-UHFFFAOYSA-N 0.000 description 1
- 150000003053 piperidines Chemical class 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 239000002798 polar solvent Substances 0.000 description 1
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 1
- 229920001748 polybutylene Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920001522 polyglycol ester Polymers 0.000 description 1
- 239000002685 polymerization catalyst Substances 0.000 description 1
- 150000008442 polyphenolic compounds Chemical class 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- ZNZJJSYHZBXQSM-UHFFFAOYSA-N propane-2,2-diamine Chemical compound CC(C)(N)N ZNZJJSYHZBXQSM-UHFFFAOYSA-N 0.000 description 1
- MWWATHDPGQKSAR-UHFFFAOYSA-N propyne Chemical compound CC#C MWWATHDPGQKSAR-UHFFFAOYSA-N 0.000 description 1
- 150000003220 pyrenes Chemical class 0.000 description 1
- 150000003235 pyrrolidines Chemical class 0.000 description 1
- 238000011002 quantification Methods 0.000 description 1
- 150000007660 quinolones Chemical class 0.000 description 1
- 150000004053 quinones Chemical class 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 239000012070 reactive reagent Substances 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 230000008707 rearrangement Effects 0.000 description 1
- 235000020945 retinal Nutrition 0.000 description 1
- 150000003726 retinal derivatives Chemical class 0.000 description 1
- 238000012552 review Methods 0.000 description 1
- 238000007127 saponification reaction Methods 0.000 description 1
- 229940116351 sebacate Drugs 0.000 description 1
- CXMXRPHRNRROMY-UHFFFAOYSA-L sebacate(2-) Chemical compound [O-]C(=O)CCCCCCCCC([O-])=O CXMXRPHRNRROMY-UHFFFAOYSA-L 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- LTYHQUJGIQUHMS-UHFFFAOYSA-M silver;hexadecanoate Chemical compound [Ag+].CCCCCCCCCCCCCCCC([O-])=O LTYHQUJGIQUHMS-UHFFFAOYSA-M 0.000 description 1
- ORYURPRSXLUCSS-UHFFFAOYSA-M silver;octadecanoate Chemical compound [Ag+].CCCCCCCCCCCCCCCCCC([O-])=O ORYURPRSXLUCSS-UHFFFAOYSA-M 0.000 description 1
- PCMORTLOPMLEFB-ONEGZZNKSA-N sinapic acid Chemical class COC1=CC(\C=C\C(O)=O)=CC(OC)=C1O PCMORTLOPMLEFB-ONEGZZNKSA-N 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000011949 solid catalyst Substances 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 238000010186 staining Methods 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 125000004079 stearyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 description 1
- 125000005480 straight-chain fatty acid group Chemical group 0.000 description 1
- 239000011115 styrene butadiene Substances 0.000 description 1
- 229920003048 styrene butadiene rubber Polymers 0.000 description 1
- 150000003440 styrenes Chemical class 0.000 description 1
- 125000000475 sulfinyl group Chemical group [*:2]S([*:1])=O 0.000 description 1
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical class [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 1
- FWMUJAIKEJWSSY-UHFFFAOYSA-N sulfur dichloride Chemical compound ClSCl FWMUJAIKEJWSSY-UHFFFAOYSA-N 0.000 description 1
- 239000003930 superacid Substances 0.000 description 1
- JBQYATWDVHIOAR-UHFFFAOYSA-N tellanylidenegermanium Chemical compound [Te]=[Ge] JBQYATWDVHIOAR-UHFFFAOYSA-N 0.000 description 1
- 229920001897 terpolymer Polymers 0.000 description 1
- ISIJQEHRDSCQIU-UHFFFAOYSA-N tert-butyl 2,7-diazaspiro[4.5]decane-7-carboxylate Chemical compound C1N(C(=O)OC(C)(C)C)CCCC11CNCC1 ISIJQEHRDSCQIU-UHFFFAOYSA-N 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- QZZGJDVWLFXDLK-UHFFFAOYSA-N tetracosanoic acid Chemical class CCCCCCCCCCCCCCCCCCCCCCCC(O)=O QZZGJDVWLFXDLK-UHFFFAOYSA-N 0.000 description 1
- TUNFSRHWOTWDNC-HKGQFRNVSA-N tetradecanoic acid Chemical compound CCCCCCCCCCCCC[14C](O)=O TUNFSRHWOTWDNC-HKGQFRNVSA-N 0.000 description 1
- 229940095068 tetradecene Drugs 0.000 description 1
- 125000000383 tetramethylene group Chemical group [H]C([H])([*:1])C([H])([H])C([H])([H])C([H])([H])[*:2] 0.000 description 1
- 230000008646 thermal stress Effects 0.000 description 1
- 150000003557 thiazoles Chemical class 0.000 description 1
- 150000003573 thiols Chemical class 0.000 description 1
- 229930192474 thiophene Natural products 0.000 description 1
- 150000003577 thiophenes Chemical class 0.000 description 1
- 150000003585 thioureas Chemical class 0.000 description 1
- HPGGPRDJHPYFRM-UHFFFAOYSA-J tin(iv) chloride Chemical compound Cl[Sn](Cl)(Cl)Cl HPGGPRDJHPYFRM-UHFFFAOYSA-J 0.000 description 1
- 150000003613 toluenes Chemical class 0.000 description 1
- 239000010891 toxic waste Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
- 150000003852 triazoles Chemical class 0.000 description 1
- 239000013638 trimer Substances 0.000 description 1
- PHYFQTYBJUILEZ-IUPFWZBJSA-N triolein Chemical class CCCCCCCC\C=C/CCCCCCCC(=O)OCC(OC(=O)CCCCCCC\C=C/CCCCCCCC)COC(=O)CCCCCCC\C=C/CCCCCCCC PHYFQTYBJUILEZ-IUPFWZBJSA-N 0.000 description 1
- PVNIQBQSYATKKL-UHFFFAOYSA-N tripalmitin Chemical class CCCCCCCCCCCCCCCC(=O)OCC(OC(=O)CCCCCCCCCCCCCCC)COC(=O)CCCCCCCCCCCCCCC PVNIQBQSYATKKL-UHFFFAOYSA-N 0.000 description 1
- DCXXMTOCNZCJGO-UHFFFAOYSA-N tristearoylglycerol Chemical class CCCCCCCCCCCCCCCCCC(=O)OCC(OC(=O)CCCCCCCCCCCCCCCCC)COC(=O)CCCCCCCCCCCCCCCCC DCXXMTOCNZCJGO-UHFFFAOYSA-N 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 238000000870 ultraviolet spectroscopy Methods 0.000 description 1
- 235000021122 unsaturated fatty acids Nutrition 0.000 description 1
- 150000004670 unsaturated fatty acids Chemical class 0.000 description 1
- HGBOYTHUEUWSSQ-UHFFFAOYSA-N valeric aldehyde Natural products CCCCC=O HGBOYTHUEUWSSQ-UHFFFAOYSA-N 0.000 description 1
- 238000000214 vapour pressure osmometry Methods 0.000 description 1
- 229920001567 vinyl ester resin Polymers 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- 125000002348 vinylic group Chemical group 0.000 description 1
- 239000007762 w/o emulsion Substances 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
- 229940012185 zinc palmitate Drugs 0.000 description 1
- GJAPSKMAVXDBIU-UHFFFAOYSA-L zinc;hexadecanoate Chemical compound [Zn+2].CCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCC([O-])=O GJAPSKMAVXDBIU-UHFFFAOYSA-L 0.000 description 1
- AFVLVVWMAFSXCK-UHFFFAOYSA-N α-cyano-4-hydroxycinnamic acid Chemical class OC(=O)C(C#N)=CC1=CC=C(O)C=C1 AFVLVVWMAFSXCK-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
- G01N33/53—Immunoassay; Biospecific binding assay; Materials therefor
- G01N33/543—Immunoassay; Biospecific binding assay; Materials therefor with an insoluble carrier for immobilising immunochemicals
- G01N33/54366—Apparatus specially adapted for solid-phase testing
- G01N33/54386—Analytical elements
- G01N33/54387—Immunochromatographic test strips
- G01N33/54388—Immunochromatographic test strips based on lateral flow
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/26—Oils; Viscous liquids; Paints; Inks
- G01N33/28—Oils, i.e. hydrocarbon liquids
- G01N33/2835—Specific substances contained in the oils or fuels
- G01N33/2882—Markers
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G, C10K; LIQUEFIED PETROLEUM GAS; ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE OR UNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL; FIRELIGHTERS
- C10L1/00—Liquid carbonaceous fuels
- C10L1/003—Marking, e.g. coloration by addition of pigments
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/26—Oils; Viscous liquids; Paints; Inks
- G01N33/28—Oils, i.e. hydrocarbon liquids
- G01N33/2888—Lubricating oil characteristics, e.g. deterioration
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
- G01N33/50—Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing
- G01N33/53—Immunoassay; Biospecific binding assay; Materials therefor
- G01N33/558—Immunoassay; Biospecific binding assay; Materials therefor using diffusion or migration of antigen or antibody
Definitions
- Petroleum products are employed in a variety of automotive, off- highway vehicles, on-highway vehicles, equipment, machines, metal working and industrial applications. It is important to know the identity, quality, condition and remaining useful life of such products to prevent the improper and ineffective utilization of the products.
- a quality petroleum product insures that the condition of the device/equipment containing the petroleum product is productive and properly functioning. It is, therefore, desirable to monitor the physical and/or chemical conditions and the identity, and the remaining useful life of petroleum products.
- Other methods for assessing the quality of a used petroleum product include placing a measured amount of product upon an absorbent material, heating the sample and awaiting dispersion of the sample. The amount of undispersed sample may then be measured and rated quantitatively. These methods and apparatus require significant controlled conditions, including measurement of the product sample volume, the use of a template to measure and rate the quantity of undispersed the sample. Additionally these methods can include heating of the sample, and awaiting dispersal of the sample.
- the presence of a marker substance is detected and optionally quantified by extracting the fuel with an immiscible aqueous or significantly aqueous solution of an acid substance, the precise nature of which can be varied according to the characteristics of the marker substance.
- the acid reacts with the basic compound to produce a readily visible, more or less intensely colored cation, that is dissolved in the aqueous acid phase.
- the quantity of marker substance in the extract may also be measured, for instance, by visible light absorption spectrophotometry, the results of which are then compared with a reference standard to determine the original concentration of basic marker in the petroleum product. It may be necessary to make repeated, typically two or three, extractions of the product to recover the entire amount of marker originally present in order for complete quantification. Additionally, the measurement requires expensive equipment requiring frequent calibration.
- This disclosure also relates in part to a method for determining the condition or quality of a product.
- the method involves adding to the product a taggant in which the taggant exhibits degradation in response to one or more stimuli; carrying out an immunoassay specific for the taggant to determine degradation of the taggant; and determining the condition of the product based on the degradation of the taggant.
- This disclosure also relates in part to a lubricating engine oil having a composition that includes a lubricating oil base stock as a major component; and a taggant, as a minor component.
- the taggant exhibits degradation in response to one or more stimuli.
- the taggant is present in an amount sufficient for an immunoassay to be carried out specific for the taggant to determine degradation of the taggant.
- taggants can be used in immunoassay methods for determining the condition and/or identity of lubricating oils.
- the immunoassay methods can be used, particularly in the field, for determining the condition and/or identity of lubricating oils.
- taggants that exhibit degradation in response to one or more stimuli show unique benefits when used as taggants in conjunction with immunoassay methods for determining the condition and/or identity of lubricating oils.
- Fig. 3 shows examples of tag molecules that can be used in lubricants and their utility in determining the condition and/or identity of lubricating oils in accordance with this disclosure.
- Fig. 4 shows examples of detection from immunoassay interrogation of a lubricating oil using a taggant (i.e., screening for initial concentration) in accordance with step 3 of the procedure for immunoassay for condition monitoring in the Examples.
- Fig. 5 shows examples of detection from immunoassay interrogation of a lubricating oil using a taggant (i.e., use of immunoassay to monitor lubricant condition) in accordance with step 4 of the procedure for immunoassay for condition monitoring in the Examples.
- this disclosure involves chemical cryptography, in particular, the use of an inert marker or a variable array of inert markers for the purpose of establishing the condition and/or identity of a petroleum product, e.g., lubricating oil, by immunoassay methods.
- These molecules are detectable using a standard, semi-quantitative analytical technique such as lateral flow immunoassay.
- the initial concentrations of the sensor molecules are chosen such that they are detectable in fresh oil, but undetectable after being subjected to stressful conditions (e.g., 600 hr RPVOT ASTM D2272). In this manner, a customer can be informed that absence of a chemical sensor in service implies that the lubricating oil has been subjected to environmental stress equivalent to or greater than a given bench screener.
- Molecular sensors can also be identified to indicate contamination from another lubricant, contact with acidic or caustic conditions, thermal excursions or reductive/oxidative conditions. Detection of these molecules can then be multiplexed for a detailed history and condition of a used lubricant, with clear correlation to bench screeners used in development. As the molecules are at inert concentrations (e.g., ⁇ 1 ppm), they do not impact performance and a large (e.g., 20 or more sensor molecules) basis set can be established.
- inert concentrations e.g., ⁇ 1 ppm
- This disclosure improves over current state of the art, whereby concentrations of performance additives and contaminants or physical properties of the petroleum product (e.g., lubricant) are the only measurements used in condition monitoring and these cannot be measured without advanced lab equipment.
- Lubricant additives are not designed to respond to specific stimuli or a specific history. Additionally, the number of lubricant additives is typically 10, and these are chosen primarily for lubrication performance features. The small number of additives limits the number of dimensions the analytical query can investigate (e.g., concentration of each of the 10 lubricant additives).
- this disclosure uses a taggant or an array of taggants that exhibit degradation in response to one or more stimuli (e.g., acidic conditions, basic or caustic conditions, thermal excursions, reductive/oxidative conditions, photochemical conditions, and contamination from another source) to determine the condition and/or identity of lubricating oils.
- Each of the taggants in the array can either be included or omitted in a given batch of lubricant at manufacture, providing 2 N unique combinations in the array.
- the disclosure features a method of marking a petroleum product for monitoring condition and history thereof in which a marker, composed of a taggant (e.g., one or more amide compounds) or a taggant array (e.g., two or more amide compounds) is associated with the petroleum product.
- a marker composed of a taggant (e.g., one or more amide compounds) or a taggant array (e.g., two or more amide compounds) is associated with the petroleum product.
- the marker is non-deleterious to the petroleum product, is used sparingly in the petroleum product, is soluble in water, does not interact with the petroleum product chemistry, and is robustly detectable.
- the presence of the marker can only be easily established by someone who knows the identity of the marker, but cannot be routinely determined by a person unfamiliar with the marker.
- the markers exhibit degradation in response to one or more stimuli (e.g., acidic conditions, basic or caustic conditions, thermal excursions, reductive/oxidative conditions, photochemical conditions
- marker is meant a taggant that comprises one or more compounds, preferably one or more amide compounds. More preferably, the marker is a taggant array that comprises two or more amide compounds chosen for their clear response to relevant stimuli in service.
- marking a product for monitoring condition and history thereof is meant associating a marker with a product so that the condition, source, identity, or other information about the product may be established.
- Identification of a marked product can also facilitate: 1) authenticating the product; 2) monitoring of manufacturing or other processes, including monitoring process streams and blending controls; 3) product monitoring for security or regulatory purposes, such as marking the source country of products for customs and marking regulated substances; 4) detecting and monitoring spillages of marked materials, including the detection of residues of marked products, such as toxic wastes, organic pollutants and other chemicals; 5) tracing a product, such as marking a process chemical to monitor the rate of addition of the chemical to a system in order to optimize chemical dosage; and 6) studies of biodegradation of a compound, e.g., in soil biodegradation studies. Marking a product for monitoring condition and history thereof also includes the associating a product with a particular concentration of a marker, so to facilitate the detection of product adulteration by way of dil
- a method for determining the condition of a product includes adding to the product a taggant (e.g., a taggant array) in which the taggant exhibits degradation in response to one or more stimuli (e.g., acidic conditions, basic or caustic conditions, thermal excursions, reductive/oxidative conditions, photochemical conditions, and contamination from another source); carrying out an immunoassay specific for the taggant to determine degradation of the taggant; and determining the condition of the product based on the degradation of the taggant.
- a taggant e.g., a taggant array
- stimuli e.g., acidic conditions, basic or caustic conditions, thermal excursions, reductive/oxidative conditions, photochemical conditions, and contamination from another source
- the taggant (e.g., taggant array) of this disclosure is capable of being detected by immunoassay.
- the immunoassay is carried out using a test strip that is specific for the taggant.
- the test strip can preferably be a lateral flow immunoassay.
- the taggant (e.g., taggant array) of this disclosure is capable of being detected by immunoassay.
- the immunoassay is carried out using a test strip that is specific for the taggant.
- the test strip can preferably be a lateral flow immunoassay.
- a method that associates a taggant (e.g., a taggant array) with a product to produce a signature (i.e., genuine) product.
- the taggant exhibits degradation in response to one or more stimuli.
- the method also identifies the taggant in the signature product by an immunoassay specific for the taggant; maps the taggant of the signature product to a product code or a batch code of the signature product; obtains a test product to determine the condition and/or identity of the test product; identifies the presence or absence of a taggant in the test product by an immunoassay specific for the taggant; and compares results of the immunoassay carried out on the test product with results of the immunoassay carried out on the signature product to determine the condition and/or identity of the test product.
- the method maps the taggant (e.g., taggant array) of the signature product to a product code or a batch code of the signature product through the use of a decoder key.
- the mapped taggant of the signature product to a product code or a batch code of the signature product is preferably obtained from a supplier website or database.
- the mapped taggant of the signature product to a product code or a batch code of the signature product is then compared with an immunoassay carried out on a purchased product to determine the condition and/or identity of the purchased product.
- the taggant (e.g., taggant array) of this disclosure is capable of being detected by immunoassay.
- the immunoassay is carried out using a test strip that is specific for the taggant.
- the test strip can be a coded test strip that can be read by a bar code reader.
- the test strip can include a taggant and a product identification (e.g., a taggant array and a product identification array).
- the test strip can preferably be a lateral flow immunoassay.
- the taggants and taggant arrays useful in this disclosure exhibit degradation in response to one or more stimuli (e.g., acidic conditions, basic or caustic conditions, thermal excursions, reductive/oxidative conditions, photochemical conditions, and contamination from another source).
- the detection of degradation for a particular stimuli allows one to determine the condition and/or identity of petroleum products (e.g., lubricating oils) with respect to the particular stimuli.
- a lubricating engine oil having a composition comprising a lubricating oil base stock as a major component; and a taggant (e.g., a taggant array that comprises two or more amide compounds), as a minor component.
- the taggant exhibits degradation in response to one or more stimuli (e.g., acidic conditions, basic or caustic conditions, thermal excursions, reductive/oxidative conditions, photochemical conditions, and contamination from another source).
- the taggant is present in an amount sufficient for an immunoassay to be carried out specific for the taggant to determine degradation of the taggant.
- Illustrative taggants useful in this disclosure include, for example, amide compounds, aminic compounds, aromatic compounds, phenolic compounds, sulfur-containing compounds, heterocyclic compounds, ester compounds, carboxylic acid compounds, aldehyde compounds, ketone compounds, alcohol compounds, imide compounds, acidic compounds, basic compounds, compounds sensitive to oxidation, compounds sensitive to reduction, thermally labile compounds, yellow-metal active compounds, volatile compounds, hydrolytically unstable compounds, surface active compounds, contaminant scavenging compounds, elastomer partitioning additives, oxygen sensitive compounds, light sensitive compounds, and the like.
- the taggant can comprise one or more amide compounds (e.g., a taggant array that comprises two or more amide compounds).
- the taggant compounds are selected from aliphatic amide compounds and/or cyclic amide compounds.
- the one or more amide compounds include (i) one or more aliphatic amide compounds, (ii) one or more cyclic amide compounds, or (iii) a mixture of at least one aliphatic amide compound and at least one cyclic amide compound.
- the cyclic amide compounds include, for example, (5S)-l-methyl-5- (3-pyridyl)pyrrolidin-2-one, l,3-diethyl-2-thioxodihydro-4,6(lH,5H)- pyrimidinedione, N-[2-(lH-indol-3-yl)ethyl]heptadecanamide, 3- ⁇ 2-[4-(6- fluoro-l,2-benzisoxazol-3-yl)-l-piperidinyl]ethyl ⁇ -2-methyl-6,7,8,9-tetrahydro- 4H-pyrido[ l,2-a]pyrimidin-4-one, biotinyl-N-hydroxy-succinimide, 4-ethyl-2- pyrrolidinone, 2-azaspiro[4.6]undecan-3-one, 2-azaspiro[4.4]nonan-3-one, ethyl 2-0X0
- Illustrative aminic compounds include, for example, diphenylamines, alkylated diphenyl amines, alkylnaphthyl amines, alkyl aryl naphthyl amines, alkyl aryl amines, polyethylene amines, dialkyl amines, polyisobutene amines, polypropylene amines, and the like.
- Illustrative aromatic compounds include, for example, biphenyls, benzoates, carbazoles, polycyclic aromatic compounds, nitrobenzene s, diphenyl amines, phenylhydrazines, diphenyl ethers, toluenes, xylenes, pyrenes, pyrroles, furans, pyridines, and the like.
- Illustrative phenolic compounds include, for example, simple phenols, phenolic acis, benzoquinones, phenolic aldehydes, xanthonoids, naphthoquinones, flavonoids, bioflavonoids, lignins, polyphenols alkylphenols, sulfurized alkylphenols, t-butyl-4-heptyl phenol, and the like.
- Illustrative heterocyclic compounds include, for example, furans, tetrahydrofurans, thiophenes, pyrroles, pyrrolidines, pyrans, pyridines, piperidines, imidazoles, thiazoles, dioxanes, morpholines, indoles, isoindoles, indolizines, quinolones, isoquinolines, purines carbazoles, dibenzofurans, xanthenes pyrimidines, and the like.
- Illustrative ester compounds include, for example, monoesters, di- esters, polyol esters, complex esters, organic esters, acetates, formates, butyrates, benzoates, inorganic esters, and the like.
- Illustrative basic compounds include, for example, diphenylamines, alkylated diphenyl amines, alkylnaphthyl amines, alkyl aryl naphthyl amines, alkyl aryl amines, polyethylene amines, dialkyl amines, polyisobutene amines, polypropylene amines, phenols, and the like.
- Illustrative compounds sensitive to oxidative conditions include, for example, metal bipyridines, nitrophenanthrolines, N-phenylanthranilic acids, ferroins, n-ethoxychroidine, dianisidines, diphenylamine sulfonates, diphenylbenzidines, diphenylamines, viologens, idophenols, thionines, phenosafranins, indigomono sulfonic acids, and the like.
- Illustrative thermally labile compounds include, for example, zinc dithiophosphates, asphaltenes, polyisobutenes, ethylene propylene copolymers, proteins, and the like.
- Illustrative yellow-metal active compounds include, for example, benzotriazoles, triazoles, 2-mercaptobenzothiazoles, tolyltriazoles, and the like.
- Illustrative contaminant scavenging compounds include, for example, N,N'-disalicylidene-l,2-diaminopropane, succinimides, alkylene succinimides, alkyl acetoacetates, imidazolidines, and the like.
- Illustrative elastomer partitioning additives include, for example, organic phosphates, aromatic esters, aromatic hydrocarbons, esters (butylbenzyl phthalate, for example), polybutenyl succinic anhydrides, and the like.
- Illustrative oxygen sensitive compounds include, for example, metal bipyridines, nitrophenanthrolines, N-phenylanthranilic acids, ferroins, n- ethoxychroidine, dianisidines, diphenylamine sulfonates, diphenylbenzidines, diphenylamines, viologens, idophenols, thionines, phenosafranins, indigomono sulfonic acids, and the like.
- Illustrative light sensitive compounds include, for example, coumarins, quinones, sinapinic acid esters, alpha-cyano-4-hydroxycinnamic acid esters, alkylated ditbranols, alkylated trihydroxyacetophenones, trans-3- indoleacrylic acid esters, ferulic acid esters, picolinic acid esters, alkylated versions of 6-aza-2-thiothymine, and the like.
- the taggant (e.g., taggant array) is present in an amount of from about 0.05 ppm to about 20 ppm, preferably from about 0.1 ppm to about 10 ppm, and more preferably from about 0.2 ppm to about 5 ppm.
- the lubricating oil base stock preferably comprises a Group I, Group II, Group III, Group IV, or Group V base oil.
- the lubricating oil base stock is present in an amount of from about 70 weight percent to about 95 weight percent, based on the total weight of the lubricating engine oil.
- the lubricating engine oil can further include one or more of an antiwear additive, viscosity modifiers, antioxidant, detergent, dispersant, pour point depressant, corrosion inhibitor, metal deactivator, seal compatibility additive, anti-foam agent, inhibitor, and anti-rust additive.
- a kit for monitoring the condition and/or identifying the source of a petroleum product by the methods described herein.
- the kit includes one or more test strips for carrying out immunoassay, preferably lateral flow immunoassay, of petroleum products.
- the test strips are specific for a taggant (e.g., taggant array).
- the test strips can be coded test strips that can be read by a bar code reader.
- the test strips can also include a taggant and a product identification (e.g., a taggant array and a product identification array).
- kits of this disclosure may also include a documents for comparing the result of the detection assay with that expected from a genuine product, and may comprise instructions describing the result expected of a genuine product.
- the documents may include, for example, a color chart, calibration table or calibration curve.
- the kit may comprise a sample of marked material identical to marked genuine product to be analyzed alongside the unknown sample.
- kits form ensures that a person in the field, such as a supplier of a product in an environment distant from the product source, can quickly check the condition and/or identity of the product without recourse to laboratory facilities.
- Illustrative petroleum products useful in this disclosure include, for example, lubricating oils, automatic transmission fluids, engine oils, traction drive transmission fluids, manual transmission fluids, power steering fluids, antifreeze fluids, greases, crankcase lubricants, mineral oils, oils with Group 1, 2, 3 or 4 base oils, differential lubricants, turbine lubricants, gear lubricants, gear box lubricants, axle lubricants, brake fluids, farm tractor fluids, transformer fluids, compressor fluids, cooling system fluids, metal working fluids, hydraulic fluids, industrial fluids, fuels, continuously variable transmission fluid, infinitely variable transmission fluids, and mixtures thereof.
- petroleum products useful in this disclosure can include, for example, lubricating oils, gasoline, diesel fuel, biodiesel fuel, kerosene, and industrial solvents, such as ethanol, hexane, toluene, xylenes, naptha, aromatic solvents (100, 150, 200, etc.), aliphatic solvents (C6, C9, etc.), mineral oil, and the like.
- industrial solvents such as ethanol, hexane, toluene, xylenes, naptha, aromatic solvents (100, 150, 200, etc.), aliphatic solvents (C6, C9, etc.), mineral oil, and the like.
- Lubricating base oils that are useful in the present disclosure are natural oils, mineral oils and synthetic oils, and unconventional oils (or mixtures thereof) can be used unrefined, refined, or rerefined (the latter is also known as reclaimed or reprocessed oil).
- Unrefined oils are those obtained directly from a natural or synthetic source and used without added purification. These include shale oil obtained directly from retorting operations, petroleum oil obtained directly from primary distillation, and ester oil obtained directly from an esterification process. Refined oils are similar to the oils discussed for unrefined oils except refined oils are subjected to one or more purification steps to improve at least one lubricating oil property.
- Groups I, II, III, IV and V are broad base oil stock categories developed and defined by the American Petroleum Institute (API Publication 1509; www.API.org) to create guidelines for lubricant base oils.
- Group I base stocks have a viscosity index of between about 80 to 120 and contain greater than about 0.03% sulfur and/or less than about 90% saturates.
- Group II base stocks have a viscosity index of between about 80 to 120, and contain less than or equal to about 0.03% sulfur and greater than or equal to about 90% saturates.
- Group III stocks have a viscosity index greater than about 120 and contain less than or equal to about 0.03 % sulfur and greater than about 90% saturates.
- Group IV includes polyalphaolefins (PAO).
- Group V base stock includes base stocks not included in Groups I-IV. The table below summarizes properties of each of these five groups.
- Natural oils include animal oils, vegetable oils (castor oil and lard oil, for example), and mineral oils. Animal and vegetable oils possessing favorable thermal oxidative stability can be used. Of the natural oils, mineral oils are preferred. Mineral oils vary widely as to their crude source, for example, as to whether they are paraffinic, naphthenic, or mixed paraffinic-naphthenic. Oils derived from coal or shale are also useful. Natural oils vary also as to the method used for their production and purification, for example, their distillation range and whether they are straight run or cracked, hydrorefined, or solvent extracted.
- Group II and/or Group III hydroprocessed or hydrocracked base stocks including synthetic oils such as alkyl aromatics and synthetic esters are also well known base stock oils.
- Synthetic oils include hydrocarbon oil.
- Hydrocarbon oils include oils such as polymerized and interpolymerized olefins (polybutylenes, polypropylenes, propylene isobutylene copolymers, ethylene-olefin copolymers, and ethylene-alphaolefin copolymers, for example).
- Polyalphaolefin (PAO) oil base stocks are commonly used synthetic hydrocarbon oil.
- PAOs derived from C 8 , C 10 , C 12 , C 14 olefins or mixtures thereof may be utilized. See U.S. Patent Nos. 4,956,122; 4,827,064; and 4,827,073.
- the number average molecular weights of the PAOs typically vary from about 250 to about 3,000, although PAO's may be made in viscosities up to about 150 cSt (100°C).
- the PAOs are typically comprised of relatively low molecular weight hydrogenated polymers or oligomers of alphaolefins which include, but are not limited to, C 2 to about C 32 alphaolefins with the C 8 to about C 16 alphaolefins, such as 1- octene, 1-decene, 1-dodecene and the like, being preferred.
- alphaolefins include, but are not limited to, C 2 to about C 32 alphaolefins with the C 8 to about C 16 alphaolefins, such as 1- octene, 1-decene, 1-dodecene and the like, being preferred.
- the preferred polyalphaolefins are poly-l-octene, poly- 1-decene and poly- 1-dodecene and mixtures thereof and mixed olefin-derived polyolefins.
- the dimers of higher olefins in the range of C 14 to C 18 may be used to provide low viscosity base stocks of acceptably low volatility.
- the PAOs may be predominantly trimers and tetramers of the starting olefins, with minor amounts of the higher oligomers, having a viscosity range of 1.5 to 12 cSt.
- PAO fluids of particular use may include 3.0 cSt, 3.4 cSt, and/or 3.6 cSt and combinations thereof. Mixtures of PAO fluids having a viscosity range of 1.5 to approximately 150 cSt or more may be used if desired.
- the PAO fluids may be conveniently made by the polymerization of an alphaolefin in the presence of a polymerization catalyst such as the Friedel- Crafts catalysts including, for example, aluminum trichloride, boron trifluoride or complexes of boron trifluoride with water, alcohols such as ethanol, propanol or butanol, carboxylic acids or esters such as ethyl acetate or ethyl propionate.
- a polymerization catalyst such as the Friedel- Crafts catalysts including, for example, aluminum trichloride, boron trifluoride or complexes of boron trifluoride with water, alcohols such as ethanol, propanol or butanol, carboxylic acids or esters such as ethyl acetate or ethyl propionate.
- a polymerization catalyst such as the Friedel- Crafts catalysts including, for example, aluminum trichloride, boron triflu
- wax isomerate base stocks and base oils comprising hydroisomerized waxy stocks (e.g. waxy stocks such as gas oils, slack waxes, fuels hydrocracker bottoms, etc.), hydroisomerized Fischer- Tropsch waxes, Gas-to-Liquids (GTL) base stocks and base oils, and other wax isomerate hydroisomerized base stocks and base oils, or mixtures thereof.
- hydroisomerized waxy stocks e.g. waxy stocks such as gas oils, slack waxes, fuels hydrocracker bottoms, etc.
- hydroisomerized Fischer- Tropsch waxes e.g. waxy stocks such as gas oils, slack waxes, fuels hydrocracker bottoms, etc.
- Fischer-Tropsch waxes the high boiling point residues of Fischer- Tropsch synthesis, are highly paraffinic hydrocarbons with very low sulfur content.
- the hydroprocessing used for the production of such base stocks may use an amorphous hydrocracking/hydroisomerization catalyst, such as one of the specialized lube hydrocracking (LHDC) catalysts or a crystalline hydrocracking/hydroisomerization catalyst, preferably a zeolitic catalyst.
- an amorphous hydrocracking/hydroisomerization catalyst such as one of the specialized lube hydrocracking (LHDC) catalysts or a crystalline hydrocracking/hydroisomerization catalyst, preferably a zeolitic catalyst.
- LHDC specialized lube hydrocracking
- a zeolitic catalyst preferably ZSM-48 as described in U.S. Patent No. 5,075,269, the disclosure of which is incorporated herein by reference in its entirety.
- Processes for making hydrocracked/hydroisomerized distillates and hydrocracked/hydroisomerized waxes are described, for example, in U.S. Patent Nos.
- Gas-to-Liquids (GTL) base oils, Fischer- Tropsch wax derived base oils, and other wax-derived hydroisomerized (wax isomerate) base oils be advantageously used in the instant disclosure, and may have useful kinematic viscosities at 100°C of about 3 cSt to about 50 cSt, preferably about 3 cSt to about 30 cSt, more preferably about 3.5 cSt to about 25 cSt, as exemplified by GTL 4 with kinematic viscosity of about 4.0 cSt at 100°C and a viscosity index of about 141.
- Gas-to-Liquids (GTL) base oils may have useful pour points of about -20°C or lower, and under some conditions may have advantageous pour points of about -25 °C or lower, with useful pour points of about -30°C to about -40°C or lower.
- Useful compositions of Gas-to-Liquids (GTL) base oils, Fischer-Tropsch wax derived base oils, and wax-derived hydroisomerized base oils are recited in U.S. Patent Nos. 6,080,301; 6,090,989, and 6, 165,949 for example, and are incorporated herein in their entirety by reference.
- the hydrocarbyl aromatics can be used as a base oil or base oil component and can be any hydrocarbyl molecule that contains at least about 5% of its weight derived from an aromatic moiety such as a benzenoid moiety or naphthenoid moiety, or their derivatives.
- These hydrocarbyl aromatics include alkyl benzenes, alkyl naphthalenes, alkyl diphenyl oxides, alkyl naphthols, alkyl diphenyl sulfides, alkylated bis-phenol A, alkylated thiodiphenol, and the like.
- the aromatic can be mono-alkylated, dialkylated, polyalkylated, and the like.
- the aromatic can be mono- or poly-functionalized.
- the hydrocarbyl groups can also be comprised of mixtures of alkyl groups, alkenyl groups, alkynyl, cycloalkyl groups, cycloalkenyl groups and other related hydrocarbyl groups.
- the hydrocarbyl groups can range from about C 6 up to about C 60 with a range of about C 8 to about C 2 o often being preferred.
- a mixture of hydrocarbyl groups is often preferred, and up to about three such substituents may be present.
- the hydrocarbyl group can optionally contain sulfur, oxygen, and/or nitrogen containing substituents.
- the aromatic group can also be derived from natural (petroleum) sources, provided at least about 5% of the molecule is comprised of an above-type aromatic moiety. Viscosities at 100°C of approximately 3 cSt to about 50 cSt are preferred, with viscosities of approximately 3.4 cSt to about 20 cSt often being more preferred for the hydrocarbyl aromatic component.
- an alkyl naphthalene where the alkyl group is primarily comprised of 1-hexadecene is used.
- Other alkylates of aromatics can be advantageously used.
- Naphthalene or methyl naphthalene for example, can be alkylated with olefins such as octene, decene, dodecene, tetradecene or higher, mixtures of similar olefins, and the like.
- Useful concentrations of hydrocarbyl aromatic in a lubricant oil composition can be about 2% to about 25%, preferably about 4% to about 20%, and more preferably about 4% to about 15%, depending on the application.
- Alkylated aromatics such as the hydrocarbyl aromatics of the present disclosure may be produced by well-known Friedel-Crafts alkylation of aromatic compounds. See Friedel-Crafts and Related Reactions, Olah, G. A. (ed.), Inter- science Publishers, New York, 1963.
- an aromatic compound such as benzene or naphthalene
- an olefin, alkyl halide or alcohol in the presence of a Friedel-Crafts catalyst. See Friedel-Crafts and Related Reactions, Vol. 2, part 1, chapters 14, 17, and 18, See Olah, G. A. (ed.), Inter- science Publishers, New York, 1964.
- catalysts are known to one skilled in the art.
- the choice of catalyst depends on the reactivity of the starting materials and product quality requirements.
- strong acids such as A1C1 3 , BF 3 , or HF may be used.
- milder catalysts such as FeCl 3 or SnCl 4 are preferred.
- Newer alkylation technology uses zeolites or solid super acids.
- Esters comprise a useful base stock. Additive solvency and seal compatibility characteristics may be secured by the use of esters such as the esters of dibasic acids with monoalkanols and the polyol esters of mono- carboxylic acids.
- Esters of the former type include, for example, the esters of dicarboxylic acids such as phthalic acid, succinic acid, alkyl succinic acid, alkenyl succinic acid, maleic acid, azelaic acid, suberic acid, sebacic acid, fumaric acid, adipic acid, linoleic acid dimer, malonic acid, alkyl malonic acid, alkenyl malonic acid, etc., with a variety of alcohols such as butyl alcohol, hexyl alcohol, dodecyl alcohol, 2-ethylhexyl alcohol, etc.
- dicarboxylic acids such as phthalic acid, succinic acid, alkyl succinic acid, alkenyl succinic acid, maleic acid, azelaic acid, suberic acid, sebacic acid, fumaric acid, adipic acid, linoleic acid dimer, malonic acid, alkyl malonic acid, alkenyl malonic acid, etc
- esters include dibutyl adipate, di(2-ethylhexyl) sebacate, di-n-hexyl fumarate, dioctyl sebacate, diisooctyl azelate, diisodecyl azelate, dioctyl phthalate, didecyl phthalate, dieicosyl sebacate, etc.
- Particularly useful synthetic esters are those which are obtained by reacting one or more polyhydric alcohols, preferably the hindered polyols (such as the neopentyl polyols, e.g., neopentyl glycol, trimethylol ethane, 2-methyl-2- propyl- 1,3 -propanediol, trimethylol propane, pentaerythritol and dipentaerythritol) with alkanoic acids containing at least about 4 carbon atoms, preferably C 5 to C 30 acids such as saturated straight chain fatty acids including caprylic acid, capric acid, lauric acid, myristic acid, palmitic acid, stearic acid, arachic acid, and behenic acid, or the corresponding branched chain fatty acids or unsaturated fatty acids such as oleic acid, or mixtures of any of these materials.
- the hindered polyols such as the neopentyl polyol
- Suitable synthetic ester components include the esters of trimethylol propane, trimethylol butane, trimethylol ethane, pentaerythritol and/or dipentaerythritol with one or more monocarboxylic acids containing from about 5 to about 10 carbon atoms. These esters are widely available commercially, for example, the Mobil P-41 and P-51 esters of ExxonMobil Chemical Company.
- esters derived from renewable material such as coconut, palm, rapeseed, soy, sunflower and the like. These esters may be monoesters, di-esters, polyol esters, complex esters, or mixtures thereof. These esters are widely available commercially, for example, the Mobil P-51 ester of ExxonMobil Chemical Company.
- Engine oil formulations containing renewable esters are included in this disclosure.
- the renewable content of the ester is typically greater than about 70 weight percent, preferably more than about 80 weight percent and most preferably more than about 90 weight percent.
- Non-conventional or unconventional base stocks/base oils include one or more of a mixture of base stock(s) derived from one or more Gas-to-Liquids (GTL) materials, as well as isomerate/isodewaxate base stock(s) derived from natural wax or waxy feeds, mineral and or non-mineral oil waxy feed stocks such as slack waxes, natural waxes, and waxy stocks such as gas oils, waxy fuels hydrocracker bottoms, waxy raffinate, hydrocrackate, thermal crackates, or other mineral, mineral oil, or even non-petroleum oil derived waxy materials such as waxy materials received from coal liquefaction or shale oil, and mixtures of such base stocks.
- GTL Gas-to-Liquids
- GTL materials are materials that are derived via one or more synthesis, combination, transformation, rearrangement, and/or degradation/deconstructive processes from gaseous carbon-containing compounds, hydrogen-containing compounds and/or elements as feed stocks such as hydrogen, carbon dioxide, carbon monoxide, water, methane, ethane, ethylene, acetylene, propane, propylene, propyne, butane, butylenes, and butynes.
- GTL base stocks and/or base oils are GTL materials of lubricating viscosity that are generally derived from hydrocarbons; for example, waxy synthesized hydrocarbons, that are themselves derived from simpler gaseous carbon-containing compounds, hydrogen-containing compounds and/or elements as feed stocks.
- GTL base stock(s) and/or base oil(s) include oils boiling in the lube oil boiling range (1) separated/fractionated from synthesized GTL materials such as, for example, by distillation and subsequently subjected to a final wax processing step which involves either or both of a catalytic dewaxing process, or a solvent dewaxing process, to produce lube oils of reduced/low pour point; (2) synthesized wax isomerates, comprising, for example, hydrodewaxed or hydroisomerized cat and/or solvent dewaxed synthesized wax or waxy hydrocarbons; (3) hydrodewaxed or hydroisomerized cat and/or solvent dewaxed Fischer- Tropsch (F-T) material (i.e., hydrocarbons, waxy hydrocarbons, waxes and possible analogous oxygenates); preferably hydrodewaxed or hydroisomerized/followed by cat and/or solvent dewaxing dewaxed F-T waxy hydrocarbons, or hydrodewaxed or
- GTL base stock(s) and/or base oil(s) derived from GTL materials are characterized typically as having kinematic viscosities at 100°C of from about 2 mm 2 /s to about 50 mm 2 /s (ASTM D445). They are further characterized typically as having pour points of -5°C to about -40°C or lower (ASTM D97). They are also characterized typically as having viscosity indices of about 80 to about 140 or greater (ASTM D2270).
- GTL base stock(s) and/or base oil(s) are typically highly paraffinic (>90% saturates), and may contain mixtures of monocycloparaffins and multicycloparaffins in combination with non-cyclic isoparaffins.
- the ratio of the naphthenic (i.e., cycloparaffin) content in such combinations varies with the catalyst and temperature used.
- GTL base stock(s) and/or base oil(s) typically have very low sulfur and nitrogen content, generally containing less than about 10 ppm, and more typically less than about 5 ppm of each of these elements.
- the sulfur and nitrogen content of GTL base stock(s) and/or base oil(s) obtained from F-T material, especially F-T wax, is essentially nil.
- the absence of phosphorous and aromatics make this materially especially suitable for the formulation of low SAP products.
- GTL base stock and/or base oil and/or wax isomerate base stock and/or base oil is to be understood as embracing individual fractions of such materials of wide viscosity range as recovered in the production process, mixtures of two or more of such fractions, as well as mixtures of one or two or more low viscosity fractions with one, two or more higher viscosity fractions to produce a blend wherein the blend exhibits a target kinematic viscosity.
- the GTL material, from which the GTL base stock(s) and/or base oil(s) is/are derived is preferably an F-T material (i.e., hydrocarbons, waxy hydrocarbons, wax).
- Base oils for use in the formulated lubricating oils useful in the present disclosure are any of the variety of oils corresponding to API Group I, Group II, Group III, Group IV, and Group V oils and mixtures thereof, preferably API Group II, Group III, Group IV, and Group V oils and mixtures thereof, more preferably the Group III to Group V base oils due to their exceptional volatility, stability, viscometric and cleanliness features.
- Minor quantities of Group I stock such as the amount used to dilute additives for blending into formulated lube oil products, can be tolerated but should be kept to a minimum, i.e. amounts only associated with their use as diluent/carrier oil for additives used on an "as-received" basis.
- Even in regard to the Group II stocks it is preferred that the Group II stock be in the higher quality range associated with that stock, i.e. a Group II stock having a viscosity index in the range 100 ⁇ VI ⁇ 120.
- the base oil constitutes the major component of the engine oil lubricant composition of the present disclosure and typically is present in an amount ranging from about 50 to about 99 weight percent, preferably from about 70 to about 95 weight percent, and more preferably from about 85 to about 95 weight percent, based on the total weight of the composition.
- the base oil may be selected from any of the synthetic or natural oils typically used as crankcase lubricating oils for spark-ignited and compression-ignited engines.
- the base oil conveniently has a kinematic viscosity, according to ASTM standards, of about 2.5 cSt to about 12 cSt (or mm Is) at 100°C and preferably of about 2.5 cSt to about 9 cSt (or mm Is) at 100° C. Mixtures of synthetic and natural base oils may be used if desired. Bi-modal mixtures of Group I, II, III, IV, and/or V base stocks may be used if desired.
- the formulated lubricating oil useful in the present disclosure may additionally contain one or more of commonly used lubricating oil performance additives including but not limited to detergents, antiwear additives, dispersants, viscosity modifiers, corrosion inhibitors, rust inhibitors, metal deactivators, extreme pressure additives, anti-seizure agents, wax modifiers, viscosity modifiers, fluid-loss additives, seal compatibility agents, lubricity agents, anti- staining agents, chromophoric agents, defoamants, demulsifiers, emulsifiers, densifiers, wetting agents, gelling agents, tackiness agents, colorants, and others.
- commonly used lubricating oil performance additives including but not limited to detergents, antiwear additives, dispersants, viscosity modifiers, corrosion inhibitors, rust inhibitors, metal deactivators, extreme pressure additives, anti-seizure agents, wax modifiers, viscosity modifiers, fluid-loss additives, seal compatibil
- Illustrative detergents useful in this disclosure include, for example, alkali metal detergents, alkaline earth metal detergents, or mixtures of one or more alkali metal detergents and one or more alkaline earth metal detergents.
- a typical detergent is an anionic material that contains a long chain hydrophobic portion of the molecule and a smaller anionic or oleophobic hydrophilic portion of the molecule.
- the anionic portion of the detergent is typically derived from an organic acid such as a sulfur acid, carboxylic acid (e.g., salicylic acid), phosphorous acid, phenol, or mixtures thereof.
- the counterion is typically an alkaline earth or alkali metal.
- the detergent can be overbased as described herein.
- the detergent is preferably a metal salt of an organic or inorganic acid, a metal salt of a phenol, or mixtures thereof.
- the metal is preferably selected from an alkali metal, an alkaline earth metal, and mixtures thereof.
- the organic or inorganic acid is selected from an aliphatic organic or inorganic acid, a cycloaliphatic organic or inorganic acid, an aromatic organic or inorganic acid, and mixtures thereof.
- the metal is preferably selected from an alkali metal, an alkaline earth metal, and mixtures thereof. More preferably, the metal is selected from calcium (Ca), magnesium (Mg), and mixtures thereof.
- the organic acid or inorganic acid is preferably selected from a sulfur acid, a carboxylic acid, a phosphorus acid, and mixtures thereof.
- the metal salt of an organic or inorganic acid or the metal salt of a phenol comprises calcium phenate, calcium sulfonate, calcium salicylate, magnesium phenate, magnesium sulfonate, magnesium salicylate, an overbased detergent, and mixtures thereof.
- Salts that contain a substantially stochiometric amount of the metal are described as neutral salts and have a total base number (TBN, as measured by ASTM D2896) of from 0 to 80.
- TBN total base number
- Many compositions are overbased, containing large amounts of a metal base that is achieved by reacting an excess of a metal compound (a metal hydroxide or oxide, for example) with an acidic gas (such as carbon dioxide).
- Useful detergents can be neutral, mildly overbased, or highly overbased. These detergents can be used in mixtures of neutral, overbased, highly overbased calcium salicylate, sulfonates, phenates and/or magnesium salicylate, sulfonates, phenates.
- the TBN ranges can vary from low, medium to high TBN products, including as low as 0 to as high as 600.
- Mixtures of low, medium, high TBN can be used, along with mixtures of calcium and magnesium metal based detergents, and including sulfonates, phenates, salicylates, and carboxylates.
- a detergent mixture with a metal ratio of 1, in conjunction of a detergent with a metal ratio of 2, and as high as a detergent with a metal ratio of 5, can be used.
- Borated detergents can also be used.
- Alkaline earth phenates are another useful class of detergent.
- These detergents can be made by reacting alkaline earth metal hydroxide or oxide (CaO, Ca(OH) 2 , BaO, Ba(OH) 2 , MgO, Mg(OH) 2 , for example) with an alkyl phenol or sulfurized alkylphenol.
- alkyl groups include straight chain or branched C -C30 alkyl groups, preferably, C 4 -C 20 or mixtures thereof.
- suitable phenols include isobutylphenol, 2-ethylhexylphenol, nonylphenol, dodecyl phenol, and the like.
- starting alkylphenols may contain more than one alkyl substituent that are each independently straight chain or branched and can be used from 0.5 to 6 weight percent.
- the sulfurized product may be obtained by methods well known in the art. These methods include heating a mixture of alkylphenol and sulfurizing agent (including elemental sulfur, sulfur halides such as sulfur dichloride, and the like) and then reacting the sulfurized phenol with an alkaline earth metal base.
- metal salts of carboxylic acids are preferred detergents. These carboxylic acid detergents may be prepared by reacting a basic metal compound with at least one carboxylic acid and removing free water from the reaction product. These compounds may be overbased to produce the desired TBN level.
- Detergents made from salicylic acid are one preferred class of detergents derived from carboxylic acids.
- Useful salicylates include long chain alkyl salicylates.
- R is an alkyl group having 1 to about 30 carbon atoms
- n is an integer from 1 to 4
- M is an alkaline earth metal.
- Preferred R groups are alkyl chains of at least C n , preferably C 13 or greater. R may be optionally substituted with substituents that do not interfere with the detergent's function.
- M is preferably, calcium, magnesium, or barium. More preferably, M is calcium.
- Hydrocarbyl-substituted salicylic acids may be prepared from phenols by the Kolbe reaction (see U.S. Patent No. 3,595,791).
- the metal salts of the hydrocarbyl-substituted salicylic acids may be prepared by double decomposition of a metal salt in a polar solvent such as water or alcohol.
- Alkaline earth metal phosphates are also used as detergents and are known in the art.
- Detergents may be simple detergents or what is known as hybrid or complex detergents. The latter detergents can provide the properties of two detergents without the need to blend separate materials. See U.S. Patent No. 6,034,039.
- Preferred detergents include calcium sulfonates, magnesium sulfonates, calcium salicylates, magnesium salicylates, calcium phenates, magnesium phenates, and other related components (including borated detergents), and mixtures thereof.
- Preferred mixtures of detergents include magnesium sulfonate and calcium salicylate, magnesium sulfonate and calcium sulfonate, magnesium sulfonate and calcium phenate, calcium phenate and calcium salicylate, calcium phenate and calcium sulfonate, calcium phenate and magnesium salicylate, calcium phenate and magnesium phenate.
- Overbased detergents are also preferred.
- the detergent concentration in the lubricating oils of this disclosure can range from about 0.5 to about 6.0 weight percent, preferably about 0.6 to 5.0 weight percent, and more preferably from about 0.8 weight percent to about 4.0 weight percent, based on the total weight of the lubricating oil.
- the detergent concentrations are given on an “as delivered” basis.
- the active detergent is delivered with a process oil.
- the "as delivered” detergent typically contains from about 20 weight percent to about 100 weight percent, or from about 40 weight percent to about 60 weight percent, of active detergent in the "as delivered" detergent product.
- Illustrative antiwear additives useful in this disclosure include, for example, metal salts of a carboxylic acid.
- the metal is selected from a transition metal and mixtures thereof.
- the carboxylic acid is selected from an aliphatic carboxylic acid, a cycloaliphatic carboxylic acid, an aromatic carboxylic acid, and mixtures thereof.
- the metal is preferably selected from a Group 10, 11 and 12 metal, and mixtures thereof.
- the carboxylic acid is preferably an aliphatic, saturated, unbranched carboxylic acid having from about 8 to about 26 carbon atoms, and mixtures thereof.
- the metal is preferably selected from nickel (Ni), palladium (Pd), platinum (Pt), copper (Cu), silver (Ag), gold (Au), zinc (Zn), cadium (Cd), mercury (Hg), and mixtures thereof.
- the carboxylic acid is preferably selected from caprylic acid (C8), pelargonic acid (C9), capric acid (CIO), undecylic acid (Cl l), lauric acid (C12), tridecylic acid (C13), myristic acid (C14), pentadecylic acid (C15), palmitic acid (CI 6), margaric acid (CI 7), stearic acid (CI 8), nonadecylic acid (C19), arachidic acid (C20), heneicosylic acid (C21), behenic acid (C22), tricosylic acid (C23), lignoceric acid (C24), pentacosylic acid (C25), cerotic acid (C26), and mixtures thereof.
- the metal salt of a carboxylic acid comprises zinc stearate, silver stearate, palladium stearate, zinc palmitate, silver palmitate, palladium palmitate, and mixtures thereof.
- the metal salt of a carboxylic acid is present in the engine oil formulations of this disclosure in an amount of from about 0.01 weight percent to about 5 weight percent, based on the total weight of the formulated oil.
- Low phosphorus engine oil formulations are included in this disclosure.
- the phosphorus content is typically less than about 0.12 weight percent preferably less than about 0.10 weight percent and most preferably less than about 0.085 weight percent.
- a metal alkylthiophosphate and more particularly a metal dialkyl dithio phosphate in which the metal constituent is zinc, or zinc dialkyl dithio phosphate (ZDDP) can be a useful component of the lubricating oils of this disclosure.
- ZDDP can be derived from primary alcohols, secondary alcohols or mixtures thereof.
- ZDDP compounds generally are of the formula
- R and R are Ci -Cig alkyl groups, preferably C 2 -C 12 alkyl groups. These alkyl groups may be straight chain or branched.
- Alcohols used in the ZDDP can be 2-propanol, butanol, secondary butanol, pentanols, hexanols such as 4- methyl-2-pentanol, n-hexanol, n-octanol, 2-ethyl hexanol, alkylated phenols, and the like. Mixtures of secondary alcohols or of primary and secondary alcohol can be preferred. Alkyl aryl groups may also be used.
- Preferable zinc dithiophosphates which are commercially available include secondary zinc dithiophosphates such as those available from for example, The Lubrizol Corporation under the trade designations "LZ 677A”, “LZ 1095” and “LZ 1371", from for example Chevron Oronite under the trade designation "OLOA 262" and from for example Afton Chemical under the trade designation "HITEC 7169".
- the ZDDP is typically used in amounts of from about 0.4 weight percent to about 1.2 weight percent, preferably from about 0.5 weight percent to about 1.0 weight percent, and more preferably from about 0.6 weight percent to about 0.8 weight percent, based on the total weight of the lubricating oil, although more or less can often be used advantageously.
- the ZDDP is a secondary ZDDP and present in an amount of from about 0.6 to 1.0 weight percent of the total weight of the lubricating oil.
- Low phosphorus engine oil formulations are included in this disclosure.
- the phosphorus content is typically less than about 0.12 weight percent preferably less than about 0.10 weight percent and most preferably less than about 0.085 weight percent.
- Dispersants help keep these byproducts in solution, thus diminishing their deposition on metal surfaces.
- Dispersants used in the formulation of the lubricating oil may be ashless or ash-forming in nature.
- the dispersant is ashless.
- So called ashless dispersants are organic materials that form substantially no ash upon combustion.
- non-metal-containing or borated metal-free dispersants are considered ashless.
- metal- containing detergents discussed above form ash upon combustion.
- Suitable dispersants typically contain a polar group attached to a relatively high molecular weight hydrocarbon chain.
- the polar group typically contains at least one element of nitrogen, oxygen, or phosphorus.
- Typical hydrocarbon chains contain 50 to 400 carbon atoms.
- a particularly useful class of dispersants are the (poly)alkenylsuccinic derivatives, typically produced by the reaction of a long chain hydrocarbyl substituted succinic compound, usually a hydrocarbyl substituted succinic anhydride, with a polyhydroxy or polyamino compound.
- the long chain hydrocarbyl group constituting the oleophilic portion of the molecule which confers solubility in the oil, is normally a polyisobutylene group.
- Many examples of this type of dispersant are well known commercially and in the literature. Exemplary U.S. patents describing such dispersants are U.S. Patent Nos.
- Hydrocarbyl-substituted succinic acid and hydrocarbyl-substituted succinic anhydride derivatives are useful dispersants.
- succinimide, succinate esters, or succinate ester amides prepared by the reaction of a hydrocarbon-substituted succinic acid compound preferably having at least 50 carbon atoms in the hydrocarbon substituent, with at least one equivalent of an alkylene amine are particularly useful.
- Succinimides are formed by the condensation reaction between hydrocarbyl substituted succinic anhydrides and amines. Molar ratios can vary depending on the polyamine. For example, the molar ratio of hydrocarbyl substituted succinic anhydride to TEPA can vary from about 1: 1 to about 5: 1. Representative examples are shown in U.S. Patent Nos. 3,087,936; 3,172,892; 3,219,666; 3,272,746; 3,322,670; and 3,652,616, 3,948,800; and Canada Patent No. 1,094,044.
- Succinate esters are formed by the condensation reaction between hydrocarbyl substituted succinic anhydrides and alcohols or polyols. Molar ratios can vary depending on the alcohol or polyol used. For example, the condensation product of a hydrocarbyl substituted succinic anhydride and pentaerythritol is a useful dispersant.
- Succinate ester amides are formed by condensation reaction between hydrocarbyl substituted succinic anhydrides and alkanol amines.
- suitable alkanol amines include ethoxylated polyalkylpolyamines, propoxylated polyalkylpolyamines and polyalkenylpolyamines such as polyethylene polyamines.
- propoxylated hexamethylenediamine Representative examples are shown in U.S. Patent No. 4,426,305.
- the molecular weight of the hydrocarbyl substituted succinic anhydrides used in the preceding paragraphs will typically range between 800 and 2,500 or more.
- the above products can be post-reacted with various reagents such as sulfur, oxygen, formaldehyde, carboxylic acids such as oleic acid.
- the above products can also be post reacted with boron compounds such as boric acid, borate esters or highly borated dispersants, to form borated dispersants generally having from about 0.1 to about 5 moles of boron per mole of dispersant reaction product.
- Mannich base dispersants are made from the reaction of alkylphenols, formaldehyde, and amines. See U.S. Patent No. 4,767,551, which is incorporated herein by reference. Process aids and catalysts, such as oleic acid and sulfonic acids, can also be part of the reaction mixture. Molecular weights of the alkylphenols range from 800 to 2,500. Representative examples are shown in U.S. Patent Nos. 3,697,574; 3,703,536; 3,704,308; 3,751,365; 3,756,953; 3,798, 165; and 3,803,039.
- Typical high molecular weight aliphatic acid modified Mannich condensation products useful in this disclosure can be prepared from high molecular weight alkyl- substituted hydroxyaromatics or HNR 2 group-containing reactants.
- Hydrocarbyl substituted amine ashless dispersant additives are well known to one skilled in the art; see, for example, U.S. Patent Nos. 3,275,554; 3,438,757; 3,565,804; 3,755,433, 3,822,209, and 5,084, 197.
- Illustrative preferred dispersants useful in this disclosure include those derived from polyalkenyl-substituted mono- or dicarboxylic acid, anhydride or ester, which dispersant has a polyalkenyl moiety with a number average molecular weight of at least 900 and from greater than 1.3 to 1.7, preferably from greater than 1.3 to 1.6, most preferably from greater than 1.3 to 1.5, functional groups (mono- or dicarboxylic acid producing moieties) per polyalkenyl moiety (a medium functionality dispersant).
- Functionality (F) can be determined according to the following formula:
- SAP saponification number (i.e., the number of milligrams of KOH consumed in the complete neutralization of the acid groups in one gram of the succinic-containing reaction product, as determined according to ASTM D94); M n is the number average molecular weight of the starting olefin polymer; and A.I. is the percent active ingredient of the succinic-containing reaction product (the remainder being unreacted olefin polymer, succinic anhydride and diluent).
- the polyalkenyl moiety of the dispersant may have a number average molecular weight of at least 900, suitably at least 1500, preferably between 1800 and 3000, such as between 2000 and 2800, more preferably from about 2100 to 2500, and most preferably from about 2200 to about 2400.
- the molecular weight of a dispersant is generally expressed in terms of the molecular weight of the polyalkenyl moiety. This is because the precise molecular weight range of the dispersant depends on numerous parameters including the type of polymer used to derive the dispersant, the number of functional groups, and the type of nucleophilic group employed.
- Polymer molecular weight can be determined by various known techniques.
- One convenient method is gel permeation chromatography (GPC), which additionally provides molecular weight distribution information (see W. W. Yau, J. J. Kirkland and D. D. Bly, "Modern Size Exclusion Liquid Chromatography", John Wiley and Sons, New York, 1979).
- GPC gel permeation chromatography
- Another useful method for determining molecular weight, particularly for lower molecular weight polymers is vapor pressure osmometry (e.g., ASTM D3592).
- such polymers comprise interpolymers of ethylene and at least one alpha-olefin of the above formula, wherein R 1 is alkyl of from 1 to 18 carbon atoms, and more preferably is alkyl of from 1 to 8 carbon atoms, and more preferably still of from 1 to 2 carbon atoms.
- Another useful class of polymers is polymers prepared by cationic polymerization of monomers such as isobutene and styrene.
- monomers such as isobutene and styrene.
- Common polymers from this class include polyisobutenes obtained by polymerization of a C 4 refinery stream having a butene content of 35 to 75% by wt, and an isobutene content of 30 to 60% by wt.
- a preferred source of monomer for making poly-n- butenes is petroleum feedstreams such as Raffinate II. These feedstocks are disclosed in the art such as in U.S. Pat. No. 4,952,739.
- a preferred embodiment utilizes polyisobutylene prepared from a pure isobutylene stream or a Raffinate I stream to prepare reactive isobutylene polymers with terminal vinylidene olefins.
- Polyisobutene polymers that may be employed are generally based on a polymer chain of from 1500 to 3000.
- the dispersant(s) are preferably non-polymeric (e.g., mono- or bis- succinimides). Such dispersants can be prepared by conventional processes such as disclosed in U.S. Patent Application Publication No. 2008/0020950, the disclosure of which is incorporated herein by reference.
- the dispersant(s) can be borated by conventional means, as generally disclosed in U.S. Patent Nos. 3,087,936, 3,254,025 and 5,430,105.
- Such dispersants may be used in an amount of about 0.01 to 20 weight percent or 0.01 to 10 weight percent, preferably about 0.5 to 8 weight percent, or more preferably 0.5 to 4 weight percent. Or such dispersants may be used in an amount of about 2 to 12 weight percent, preferably about 4 to 10 weight percent, or more preferably 6 to 9 weight percent. On an active ingredient basis, such additives may be used in an amount of about 0.06 to 14 weight percent, preferably about 0.3 to 6 weight percent.
- the hydrocarbon portion of the dispersant atoms can range from C 60 to C 10 oo, or from C 70 to C 30 o, or from C 70 to C 2 oo - These dispersants may contain both neutral and basic nitrogen, and mixtures of both. Dispersants can be end-capped by borates and/or cyclic carbonates.
- the dispersant concentrations are given on an “as delivered” basis.
- the active dispersant is delivered with a process oil.
- the "as delivered” dispersant typically contains from about 20 weight percent to about 80 weight percent, or from about 40 weight percent to about 60 weight percent, of active dispersant in the "as delivered" dispersant product.
- Viscosity modifiers also known as viscosity index improvers (VI improvers), and viscosity improvers
- VI improvers viscosity index improvers
- Viscosity modifiers can be included in the lubricant compositions of this disclosure.
- Viscosity modifiers provide lubricants with high and low temperature operability. These additives impart shear stability at elevated temperatures and acceptable viscosity at low temperatures.
- Suitable viscosity modifiers include high molecular weight hydrocarbons, polyesters and viscosity modifier dispersants that function as both a viscosity modifier and a dispersant. Typical molecular weights of these polymers are between about 10,000 to 1,500,000, more typically about 20,000 to 1,200,000, and even more typically between about 50,000 and 1,000,000.
- suitable viscosity modifiers are linear or star-shaped polymers and copolymers of methacrylate, butadiene, olefins, or alkylated styrenes. Polyisobutylene is a commonly used viscosity modifier.
- Another suitable viscosity modifier is polymethacrylate (copolymers of various chain length alkyl methacrylates, for example), some formulations of which also serve as pour point depressants.
- Other suitable viscosity modifiers include copolymers of ethylene and propylene, hydrogenated block copolymers of styrene and isoprene, and polyacrylates (copolymers of various chain length acrylates, for example). Specific examples include styrene-isoprene or styrene-butadiene based polymers of 50,000 to 200,000 molecular weight.
- Olefin copolymers are commercially available from Chevron Oronite Company LLC under the trade designation "PARATONE®” (such as “PARATONE® 8921” and “PARATONE® 8941”); from Afton Chemical Corporation under the trade designation “HiTEC®” (such as “HiTEC® 5850B”; and from The Lubrizol Corporation under the trade designation "Lubrizol® 7067C”.
- Hydrogenated polyisoprene star polymers are commercially available from Infineum International Limited, e.g., under the trade designation "SV200” and “SV600”.
- Hydrogenated diene-styrene block copolymers are commercially available from Infineum International Limited, e.g., under the trade designation "SV 50".
- the polymethacrylate or polyacrylate polymers can be linear polymers which are available from Evnoik Industries under the trade designation "Viscoplex®” (e.g., Viscoplex 6-954) or star polymers which are available from Lubrizol Corporation under the trade designation AstericTM (e.g., Lubrizol 87708 and Lubrizol 87725).
- Viscoplex® e.g., Viscoplex 6-954
- AstericTM e.g., Lubrizol 87708 and Lubrizol 87725
- Illustrative vinyl aromatic-containing polymers useful in this disclosure may be derived predominantly from vinyl aromatic hydrocarbon monomer.
- Illustrative vinyl aromatic-containing copolymers useful in this disclosure may be represented by the following general formula:
- A-B wherein A is a polymeric block derived predominantly from vinyl aromatic hydrocarbon monomer, and B is a polymeric block derived predominantly from conjugated diene monomer.
- the viscosity modifiers may be used in an amount of less than about 2.0 weight percent, preferably less than about 1.0 weight percent, and more preferably less than about 0.5 weight percent, based on the total weight of the formulated oil or lubricating engine oil. Viscosity modifiers are typically added as concentrates, in large amounts of diluent oil.
- the viscosity modifier concentrations are given on an "as delivered” basis.
- the active polymer is delivered with a diluent oil.
- the "as delivered” viscosity modifier typically contains from 20 weight percent to 75 weight percent of an active polymer for polymethacrylate or polyacrylate polymers, or from 8 weight percent to 20 weight percent of an active polymer for olefin copolymers, hydrogenated polyisoprene star polymers, or hydrogenated diene-styrene block copolymers, in the "as delivered” polymer concentrate.
- Antioxidants are given on an "as delivered" basis.
- the active polymer is delivered with a diluent oil.
- the "as delivered” viscosity modifier typically contains from 20 weight percent to 75 weight percent of an active polymer for polymethacrylate or polyacrylate polymers, or from 8 weight percent to 20 weight percent of an active polymer for olefin copolymers, hydrogenated polyisoprene star poly
- Antioxidants retard the oxidative degradation of base oils during service. Such degradation may result in deposits on metal surfaces, the presence of sludge, or a viscosity increase in the lubricant.
- One skilled in the art knows a wide variety of oxidation inhibitors that are useful in lubricating oil compositions. See, Klamann in Lubricants and Related Products, op cite, and U.S. Patent Nos. 4,798,684 and 5,084,197, for example.
- Useful antioxidants include hindered phenols. These phenolic antioxidants may be ashless (metal-free) phenolic compounds or neutral or basic metal salts of certain phenolic compounds. Typical phenolic antioxidant compounds are the hindered phenolics which are the ones which contain a sterically hindered hydroxyl group, and these include those derivatives of dihydroxy aryl compounds in which the hydroxyl groups are in the o- or p-position to each other. Typical phenolic antioxidants include the hindered phenols substituted with C 6 + alkyl groups and the alkylene coupled derivatives of these hindered phenols.
- phenolic materials of this type 2-t-butyl- 4-heptyl phenol; 2-t-butyl-4-octyl phenol; 2-t-butyl-4-dodecyl phenol; 2,6-di-t- butyl-4-heptyl phenol; 2,6-di-t-butyl-4-dodecyl phenol; 2-methyl-6-t-butyl-4- heptyl phenol; and 2-methyl-6-t-butyl-4-dodecyl phenol.
- Other useful hindered mono-phenolic antioxidants may include for example hindered 2,6-di-alkyl- phenolic proprionic ester derivatives.
- Bis-phenolic antioxidants may also be advantageously used in combination with the instant disclosure.
- ortho-coupled phenols include: 2,2'-bis(4-heptyl-6-t-butyl-phenol); 2,2'-bis(4- octyl-6-t-butyl-phenol); and 2,2'-bis(4-dodecyl-6-t-butyl-phenol).
- Para-coupled bisphenols include for example 4,4'-bis(2,6-di-t-butyl phenol) and 4,4'- methylene-bis(2,6-di-t-butyl phenol).
- Effective amounts of one or more catalytic antioxidants may also be used.
- the catalytic antioxidants comprise an effective amount of a) one or more oil soluble polymetal organic compounds; and, effective amounts of b) one or more substituted N,N'-diaryl-o-phenylenediamine compounds or c) one or more hindered phenol compounds; or a combination of both b) and c).
- Catalytic antioxidants are more fully described in U.S. Patent No. 8, 048,833, herein incorporated by reference in its entirety.
- Non-phenolic oxidation inhibitors which may be used include aromatic amine antioxidants and these may be used either as such or in combination with phenolics.
- Typical examples of non-phenolic antioxidants include: alkylated and non-alkylated aromatic amines such as aromatic monoamines of the formula R 8 R 9 R 10 TST where R 8° is an aliphatic, aromatic or substituted aromatic group, R 9 is an aromatic or a substituted aromatic group, and R 10 is H, alkyl, aryl or R n S(O) x R 12 where R 11 is an alkylene, alkenylene, or aralkylene group, R 12 is a higher alkyl group, or an alkenyl, aryl, or alkaryl group, and x is 0, 1 or 2.
- the aliphatic group R may contain from 1 to about 20 carbon atoms, and preferably contains from about 6 to 12 carbon atoms.
- the aliphatic group is a saturated aliphatic group.
- both R 8 and R 9 are aromatic or substituted aromatic groups, and the aromatic group may be a fused ring aromatic group such as naphthyl.
- Aromatic groups R 8 and R 9 may be joined together with other groups such as S.
- Typical aromatic amines antioxidants have alkyl substituent groups of at least about 6 carbon atoms.
- Examples of aliphatic groups include hexyl, heptyl, octyl, nonyl, and decyl. Generally, the aliphatic groups will not contain more than about 14 carbon atoms.
- the general types of amine antioxidants useful in the present compositions include diphenylamines, phenyl naphthylamines, phenothiazines, imidodibenzyls and diphenyl phenylene diamines. Mixtures of two or more aromatic amines are also useful. Polymeric amine antioxidants can also be used.
- aromatic amine antioxidants useful in the present disclosure include: p,p'-dioctyldiphenylamine; t-octylphenyl-alpha-naphthylamine; phenyl-alphanaphthylamine; and p-octylphenyl-alpha-naphthylamine.
- Sulfurized alkyl phenols and alkali or alkaline earth metal salts thereof also are useful antioxidants.
- Preferred antioxidants include hindered phenols, arylamines. These antioxidants may be used individually by type or in combination with one another. Such additives may be used in an amount of about 0.01 to 5 weight percent, preferably about 0.01 to 1.5 weight percent, more preferably zero to less than 1.5 weight percent, more preferably zero to less than 1 weight percent.
- pour point depressants also known as lube oil flow improvers
- pour point depressants may be added to lubricating compositions of the present disclosure to lower the minimum temperature at which the fluid will flow or can be poured.
- suitable pour point depressants include polymethacrylates, polyacrylates, polyarylamides, condensation products of haloparaffin waxes and aromatic compounds, vinyl carboxylate polymers, and terpolymers of dialkylfumarates, vinyl esters of fatty acids and allyl vinyl ethers.
- 1,815,022; 2,015,748; 2, 191,498; 2,387,501; 2,655, 479; 2,666,746; 2,721,877; 2,721,878; and 3,250,715 describe useful pour point depressants and/or the preparation thereof.
- Such additives may be used in an amount of about 0.01 to 5 weight percent, preferably about 0.01 to 1.5 weight percent.
- Seal compatibility agents help to swell elastomeric seals by causing a chemical reaction in the fluid or physical change in the elastomer.
- Suitable seal compatibility agents for lubricating oils include organic phosphates, aromatic esters, aromatic hydrocarbons, esters (butylbenzyl phthalate, for example), and polybutenyl succinic anhydride. Such additives may be used in an amount of about 0.01 to 3 weight percent, preferably about 0.01 to 2 weight percent.
- Anti-foam agents may advantageously be added to lubricant compositions. These agents retard the formation of stable foams. Silicones and organic polymers are typical anti-foam agents. For example, polysiloxanes, such as silicon oil or polydimethyl siloxane, provide antifoam properties. Anti-foam agents are commercially available and may be used in conventional minor amounts along with other additives such as demulsifiers; usually the amount of these additives combined is less than 1 weight percent and often less than 0.1 weight percent.
- Antirust additives are additives that protect lubricated metal surfaces against chemical attack by water or other contaminants. A wide variety of these are commercially available.
- One type of antirust additive is a polar compound that wets the metal surface preferentially, protecting it with a film of oil.
- Another type of antirust additive absorbs water by incorporating it in a water-in-oil emulsion so that only the oil touches the metal surface.
- Yet another type of antirust additive chemically adheres to the metal to produce a non-reactive surface.
- suitable additives include zinc dithiophosphates, metal phenolates, basic metal sulfonates, fatty acids and amines. Such additives may be used in an amount of about 0.01 to 5 weight percent, preferably about 0.01 to 1.5 weight percent.
- a friction modifier is any material or materials that can alter the coefficient of friction of a surface lubricated by any lubricant or fluid containing such material(s).
- Friction modifiers also known as friction reducers, or lubricity agents or oiliness agents, and other such agents that change the ability of base oils, formulated lubricant compositions, or functional fluids, to modify the coefficient of friction of a lubricated surface may be effectively used in combination with the base oils or lubricant compositions of the present disclosure if desired. Friction modifiers that lower the coefficient of friction are particularly advantageous in combination with the base oils and lube compositions of this disclosure.
- Illustrative friction modifiers may include, for example, organometallic compounds or materials, or mixtures thereof.
- Illustrative organometallic friction modifiers useful in the lubricating engine oil formulations of this disclosure include, for example, molybdenum amine, molybdenum diamine, an organotungstenate, a molybdenum dithiocarbamate, molybdenum dithiophosphates, molybdenum amine complexes, molybdenum carboxylates, and the like, and mixtures thereof. Similar tungsten based compounds may be preferable.
- illustrative friction modifiers useful in the lubricating engine oil formulations of this disclosure include, for example, alkoxylated fatty acid esters, alkanolamides, polyol fatty acid esters, borated glycerol fatty acid esters, fatty alcohol ethers, and mixtures thereof.
- Illustrative alkoxylated fatty acid esters include, for example, polyoxyethylene stearate, fatty acid polyglycol ester, and the like. These can include polyoxypropylene stearate, polyoxybutylene stearate, polyoxyethylene isosterate, polyoxypropylene isostearate, polyoxyethylene palmitate, and the like.
- Illustrative alkanolamides include, for example, lauric acid diethylalkanolamide, palmic acid diethylalkanolamide, and the like. These can include oleic acid diethyalkanolamide, stearic acid diethylalkanolamide, oleic acid diethylalkanolamide, polyethoxylated hydrocarbylamides, polypropoxylated hydrocarbylamides, and the like.
- Illustrative polyol fatty acid esters include, for example, glycerol mono-oleate, saturated mono-, di-, and tri-glyceride esters, glycerol mono- stearate, and the like. These can include polyol esters, hydroxyl-containing polyol esters, and the like.
- Illustrative borated glycerol fatty acid esters include, for example, borated glycerol mono-oleate, borated saturated mono-, di-, and tri-glyceride esters, borated glycerol mono-sterate, and the like.
- glycerol polyols these can include trimethylolpropane, pentaerythritol, sorbitan, and the like.
- esters can be polyol monocarboxylate esters, polyol dicarboxylate esters, and on occasion polyoltricarboxylate esters.
- Preferred can be the glycerol mono-oleates, glycerol dioleates, glycerol trioleates, glycerol monostearates, glycerol distearates, and glycerol tristearates and the corresponding glycerol monopalmitates, glycerol dipalmitates, and glycerol tripalmitates, and the respective isostearates, linoleates, and the like.
- the glycerol esters can be preferred as well as mixtures containing any of these. Ethoxylated, propoxylated, butoxylated fatty acid esters of polyols, especially using glycerol as underlying polyol can be preferred.
- Illustrative fatty alcohol ethers include, for example, stearyl ether, myristyl ether, and the like. Alcohols, including those that have carbon numbers from C 3 to C 50 , can be ethoxylated, propoxylated, or butoxylated to form the corresponding fatty alkyl ethers.
- the underlying alcohol portion can preferably be stearyl, myristyl, C n - C 1 hydrocarbon, oleyl, isosteryl, and the like.
- the lubricating oils of this disclosure exhibit desired properties, e.g., wear control, in the presence or absence of a friction modifier.
- Useful concentrations of friction modifiers may range from 0.01 weight percent to 5 weight percent, or about 0.1 weight percent to about 2.5 weight percent, or about 0.1 weight percent to about 1.5 weight percent, or about 0.1 weight percent to about 1 weight percent. Concentrations of molybdenum- containing materials are often described in terms of Mo metal concentration. Advantageous concentrations of Mo may range from 25 ppm to 700 ppm or more, and often with a preferred range of 50-200 ppm. Friction modifiers of all types may be used alone or in mixtures with the materials of this disclosure. Often mixtures of two or more friction modifiers, or mixtures of friction modifier(s) with alternate surface active material(s), are also desirable.
- lubricating oil compositions contain one or more of the additives discussed above, the additive(s) are blended into the composition in an amount sufficient for it to perform its intended function. Typical amounts of such additives useful in the present disclosure are shown in Table 1 below.
- the weight amounts in the table below, as well as other amounts mentioned herein, are directed to the amount of active ingredient (that is the non-diluent portion of the ingredient).
- the weight percent (wt%) indicated below is based on the total weight of the lubricating oil composition.
- Anti-foam Agent 0.001-3 0.001-0.15
- Viscosity Modifier (solid 0.1-2 0.1-1
- additives are all commercially available materials. These additives may be added independently but are usually precombined in packages which can be obtained from suppliers of lubricant oil additives. Additive packages with a variety of ingredients, proportions and characteristics are available and selection of the appropriate package will take the requisite use of the ultimate composition into account.
- the bench test for correlation is a reactor vessel held at 120°C for 72 hours (Oxidation Screener A).
- the sensor molecule used was a cyclic amide that is moderately stable to oxidation and detectable in lubricant by immunoassay at very low levels ( ⁇ 1 ppm). However, the sensor molecule decomposes slowly at elevated temperatures. Without knowing the exact kinetic model of the degradation, the initial concentration of the molecule can then be tuned such that the concentration of molecule of After Screener A is at the detection limit of the immunoassay.
- a lubricant that contains a calibrated spike of the cyclic amide tag molecule can be used to interrogate whether the lubricant has experienced thermal/oxidative stresses equivalent to Screener A through the presence or absence of the molecule.
- Fig. 1 shows examples of "detect” and “no detect” from immunoassay interrogation of a lubricating oil using a taggant in accordance with this disclosure.
- Fig. 2 graphically shows the use of taggants to detect oxidation in accordance with this disclosure.
- Fig. 3 shows examples of tag molecules that can be used in lubricants and their utility in determining the condition and/or identity of lubricating oils in accordance with this disclosure.
- a typical procedure for immunoassay for condition monitoring involves four steps.
- the first step involves identifying an immunoassay taggant.
- the taggant should be compatible with the lubricant matrix, stable in the lubricant matrix, extractable into aqueous media, does not impact lubricant performance, and decomposes at similar time scales to the lubricant componentry.
- the second step involves choosing oxidation screener conditions that correlate with end of the lubricant life (e.g., 144 hours in HIE screener at 130°C with metal catalyst).
- the third step involves determining minimum detectable concentration of taggant (step 1) producing "no detect" after exposure to oxidation screener (step 2).
- the fourth step involves using correlation developed (step 3) to easily and rapidly monitor the lubricant oxidation condition.
- Fig. 4 shows examples of detection from immunoassay interrogation of a lubricating oil using a taggant (i.e., screening for initial concentration) in accordance with step 3 above.
- Fig. 5 shows examples of detection from immunoassay interrogation of a lubricating oil using a taggant (i.e., use of immunoassay to monitor lubricant condition) in accordance with step 4 above.
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Abstract
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US201462096564P | 2014-12-24 | 2014-12-24 | |
PCT/US2015/067101 WO2016106214A1 (fr) | 2014-12-24 | 2015-12-21 | Procédés de détermination d'état et de qualité de produits pétroliers |
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EP3237904A1 true EP3237904A1 (fr) | 2017-11-01 |
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EP15825722.0A Withdrawn EP3237904A1 (fr) | 2014-12-24 | 2015-12-21 | Procédés de détermination d'état et de qualité de produits pétroliers |
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EP (1) | EP3237904A1 (fr) |
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-
2015
- 2015-12-21 EP EP15825722.0A patent/EP3237904A1/fr not_active Withdrawn
- 2015-12-21 WO PCT/US2015/067101 patent/WO2016106214A1/fr active Application Filing
- 2015-12-21 SG SG11201702860WA patent/SG11201702860WA/en unknown
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US5984983A (en) * | 1998-12-04 | 1999-11-16 | Morton International, Inc. | Use of carbonyl compounds as markers |
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