CN111662768A - Synthetic long-life natural gas engine oil and preparation method thereof - Google Patents
Synthetic long-life natural gas engine oil and preparation method thereof Download PDFInfo
- Publication number
- CN111662768A CN111662768A CN202010549265.2A CN202010549265A CN111662768A CN 111662768 A CN111662768 A CN 111662768A CN 202010549265 A CN202010549265 A CN 202010549265A CN 111662768 A CN111662768 A CN 111662768A
- Authority
- CN
- China
- Prior art keywords
- oil
- natural gas
- gas engine
- engine oil
- synthetic
- 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.)
- Granted
Links
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 title claims abstract description 127
- 239000003345 natural gas Substances 0.000 title claims abstract description 57
- 239000010705 motor oil Substances 0.000 title claims abstract description 43
- 238000002360 preparation method Methods 0.000 title abstract description 7
- 239000003921 oil Substances 0.000 claims abstract description 61
- -1 alkyl naphthalene Chemical compound 0.000 claims abstract description 29
- 239000002199 base oil Substances 0.000 claims abstract description 28
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 23
- UFWIBTONFRDIAS-UHFFFAOYSA-N naphthalene-acid Natural products C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 claims abstract description 23
- 239000003599 detergent Substances 0.000 claims description 22
- 239000003112 inhibitor Substances 0.000 claims description 20
- 239000002518 antifoaming agent Substances 0.000 claims description 19
- 238000005260 corrosion Methods 0.000 claims description 18
- 230000007797 corrosion Effects 0.000 claims description 18
- 238000003756 stirring Methods 0.000 claims description 18
- 239000002270 dispersing agent Substances 0.000 claims description 17
- 239000003963 antioxidant agent Substances 0.000 claims description 16
- 230000003078 antioxidant effect Effects 0.000 claims description 15
- 230000000994 depressogenic effect Effects 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 12
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 11
- KZNICNPSHKQLFF-UHFFFAOYSA-N succinimide Chemical compound O=C1CCC(=O)N1 KZNICNPSHKQLFF-UHFFFAOYSA-N 0.000 claims description 11
- 229910052725 zinc Inorganic materials 0.000 claims description 11
- 239000011701 zinc Substances 0.000 claims description 11
- 239000002994 raw material Substances 0.000 claims description 10
- 229920001577 copolymer Polymers 0.000 claims description 9
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 claims description 8
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical compound CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 claims description 8
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 claims description 8
- 239000013556 antirust agent Substances 0.000 claims description 8
- KPUWHANPEXNPJT-UHFFFAOYSA-N disiloxane Chemical class [SiH3]O[SiH3] KPUWHANPEXNPJT-UHFFFAOYSA-N 0.000 claims description 8
- 229920000642 polymer Polymers 0.000 claims description 8
- 229920000193 polymethacrylate Polymers 0.000 claims description 8
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims description 7
- DMBHHRLKUKUOEG-UHFFFAOYSA-N diphenylamine Chemical class C=1C=CC=CC=1NC1=CC=CC=C1 DMBHHRLKUKUOEG-UHFFFAOYSA-N 0.000 claims description 7
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 6
- 238000002156 mixing Methods 0.000 claims description 6
- 239000012964 benzotriazole Substances 0.000 claims description 5
- 125000003354 benzotriazolyl group Chemical group N1N=NC2=C1C=CC=C2* 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 5
- OWXJWNXGYIVLBV-UHFFFAOYSA-J molybdenum(4+) tetracarbamothioate Chemical compound C(N)([O-])=S.[Mo+4].C(N)([O-])=S.C(N)([O-])=S.C(N)([O-])=S OWXJWNXGYIVLBV-UHFFFAOYSA-J 0.000 claims description 5
- QCJQWJKKTGJDCM-UHFFFAOYSA-N [P].[S] Chemical group [P].[S] QCJQWJKKTGJDCM-UHFFFAOYSA-N 0.000 claims description 4
- 150000001993 dienes Chemical class 0.000 claims description 4
- 229920001296 polysiloxane Polymers 0.000 claims description 4
- 150000001412 amines Chemical class 0.000 claims description 3
- 229960002317 succinimide Drugs 0.000 claims description 3
- DKVNPHBNOWQYFE-UHFFFAOYSA-N carbamodithioic acid Chemical compound NC(S)=S DKVNPHBNOWQYFE-UHFFFAOYSA-N 0.000 claims description 2
- 239000012990 dithiocarbamate Substances 0.000 claims description 2
- 239000002736 nonionic surfactant Substances 0.000 claims description 2
- YGSDEFSMJLZEOE-UHFFFAOYSA-M salicylate Chemical compound OC1=CC=CC=C1C([O-])=O YGSDEFSMJLZEOE-UHFFFAOYSA-M 0.000 claims description 2
- 229960001860 salicylate Drugs 0.000 claims description 2
- 125000001273 sulfonato group Chemical group [O-]S(*)(=O)=O 0.000 claims description 2
- RYYWUUFWQRZTIU-UHFFFAOYSA-K thiophosphate Chemical compound [O-]P([O-])([O-])=S RYYWUUFWQRZTIU-UHFFFAOYSA-K 0.000 claims description 2
- 229910052799 carbon Inorganic materials 0.000 abstract description 14
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 13
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- 239000000446 fuel Substances 0.000 abstract description 13
- 230000003647 oxidation Effects 0.000 abstract description 12
- 238000007254 oxidation reaction Methods 0.000 abstract description 12
- 239000000654 additive Substances 0.000 abstract description 7
- 230000008901 benefit Effects 0.000 abstract description 7
- 239000010802 sludge Substances 0.000 abstract description 6
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- 239000002253 acid Substances 0.000 abstract description 3
- 239000000047 product Substances 0.000 description 23
- 239000000203 mixture Substances 0.000 description 15
- 230000000052 comparative effect Effects 0.000 description 11
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N Aniline Chemical compound NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 description 8
- 238000001704 evaporation Methods 0.000 description 8
- 230000008020 evaporation Effects 0.000 description 8
- 238000012360 testing method Methods 0.000 description 8
- 239000002585 base Substances 0.000 description 7
- 239000007788 liquid Substances 0.000 description 7
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 description 6
- 238000005299 abrasion Methods 0.000 description 6
- 230000015572 biosynthetic process Effects 0.000 description 6
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- 239000003209 petroleum derivative Substances 0.000 description 5
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- 239000004215 Carbon black (E152) Substances 0.000 description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 229910052802 copper Inorganic materials 0.000 description 4
- 239000010949 copper Substances 0.000 description 4
- 125000001624 naphthyl group Chemical group 0.000 description 4
- 239000003973 paint Substances 0.000 description 4
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical compound OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 description 4
- 238000004448 titration Methods 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- KGRVJHAUYBGFFP-UHFFFAOYSA-N 2,2'-Methylenebis(4-methyl-6-tert-butylphenol) Chemical compound CC(C)(C)C1=CC(C)=CC(CC=2C(=C(C=C(C)C=2)C(C)(C)C)O)=C1O KGRVJHAUYBGFFP-UHFFFAOYSA-N 0.000 description 3
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 description 3
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- 150000001335 aliphatic alkanes Chemical class 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 229910052788 barium Inorganic materials 0.000 description 3
- DSAJWYNOEDNPEQ-UHFFFAOYSA-N barium atom Chemical compound [Ba] DSAJWYNOEDNPEQ-UHFFFAOYSA-N 0.000 description 3
- QRUDEWIWKLJBPS-UHFFFAOYSA-N benzotriazole Chemical compound C1=CC=C2N[N][N]C2=C1 QRUDEWIWKLJBPS-UHFFFAOYSA-N 0.000 description 3
- 239000011575 calcium Substances 0.000 description 3
- 229910052791 calcium Inorganic materials 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 150000002148 esters Chemical class 0.000 description 3
- 238000001914 filtration Methods 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 238000011056 performance test Methods 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 239000003513 alkali Substances 0.000 description 2
- 229910002091 carbon monoxide Inorganic materials 0.000 description 2
- 238000012512 characterization method Methods 0.000 description 2
- 239000000295 fuel oil Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- RMKNTZWZQFIOOB-UHFFFAOYSA-N n-butyl-2-octyl-n-phenylaniline Chemical compound CCCCCCCCC1=CC=CC=C1N(CCCC)C1=CC=CC=C1 RMKNTZWZQFIOOB-UHFFFAOYSA-N 0.000 description 2
- 238000006396 nitration reaction Methods 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 229920013639 polyalphaolefin Polymers 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 239000011593 sulfur Substances 0.000 description 2
- ROGIWVXWXZRRMZ-UHFFFAOYSA-N 2-methylbuta-1,3-diene;styrene Chemical class CC(=C)C=C.C=CC1=CC=CC=C1 ROGIWVXWXZRRMZ-UHFFFAOYSA-N 0.000 description 1
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 description 1
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-UHFFFAOYSA-N 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical group C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 229960000583 acetic acid Drugs 0.000 description 1
- 150000001278 adipic acid derivatives Chemical class 0.000 description 1
- 150000004996 alkyl benzenes Chemical group 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000003254 anti-foaming effect Effects 0.000 description 1
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000001273 butane Substances 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 229940075397 calomel Drugs 0.000 description 1
- 229910002090 carbon oxide Inorganic materials 0.000 description 1
- 125000002915 carbonyl group Chemical group [*:2]C([*:1])=O 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000012459 cleaning agent Substances 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
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- 238000011161 development Methods 0.000 description 1
- 239000002283 diesel fuel Substances 0.000 description 1
- 238000000113 differential scanning calorimetry Methods 0.000 description 1
- ZOMNIUBKTOKEHS-UHFFFAOYSA-L dimercury dichloride Chemical compound Cl[Hg][Hg]Cl ZOMNIUBKTOKEHS-UHFFFAOYSA-L 0.000 description 1
- 238000004945 emulsification Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000013100 final test Methods 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 239000003502 gasoline Substances 0.000 description 1
- 239000012362 glacial acetic acid Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 150000002431 hydrogen Chemical class 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 230000003301 hydrolyzing effect Effects 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 239000000693 micelle Substances 0.000 description 1
- 238000005065 mining Methods 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
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 229930195734 saturated hydrocarbon Natural products 0.000 description 1
- 239000013049 sediment Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000001953 sensory effect Effects 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 230000003381 solubilizing effect Effects 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 150000005846 sugar alcohols Polymers 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000001308 synthesis method Methods 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 238000000954 titration curve Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M169/00—Lubricating compositions characterised by containing as components a mixture of at least two types of ingredient selected from base-materials, thickeners or additives, covered by the preceding groups, each of these compounds being essential
- C10M169/04—Mixtures of base-materials and additives
- C10M169/048—Mixtures of base-materials and additives the additives being a mixture of compounds of unknown or incompletely defined constitution, non-macromolecular and macromolecular compounds
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M111/00—Lubrication compositions characterised by the base-material being a mixture of two or more compounds covered by more than one of the main groups C10M101/00 - C10M109/00, each of these compounds being essential
- C10M111/06—Lubrication compositions characterised by the base-material being a mixture of two or more compounds covered by more than one of the main groups C10M101/00 - C10M109/00, each of these compounds being essential at least one of them being a compound of the type covered by group C10M109/00
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M177/00—Special methods of preparation of lubricating compositions; Chemical modification by after-treatment of components or of the whole of a lubricating composition, not covered by other classes
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2201/00—Inorganic compounds or elements as ingredients in lubricant compositions
- C10M2201/003—Inorganic compounds or elements as ingredients in lubricant compositions used as base material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/02—Well-defined aliphatic compounds
- C10M2203/0206—Well-defined aliphatic compounds used as base material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/02—Well-defined aliphatic compounds
- C10M2203/022—Well-defined aliphatic compounds saturated
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2203/00—Organic non-macromolecular hydrocarbon compounds and hydrocarbon fractions as ingredients in lubricant compositions
- C10M2203/06—Well-defined aromatic compounds
- C10M2203/065—Well-defined aromatic compounds used as base material
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
- C10M2205/022—Ethene
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/02—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing acyclic monomers
- C10M2205/024—Propene
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10M—LUBRICATING COMPOSITIONS; USE OF CHEMICAL SUBSTANCES EITHER ALONE OR AS LUBRICATING INGREDIENTS IN A LUBRICATING COMPOSITION
- C10M2205/00—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions
- C10M2205/04—Organic macromolecular hydrocarbon compounds or fractions, whether or not modified by oxidation as ingredients in lubricant compositions containing aromatic monomers, e.g. styrene
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- C10M2209/08—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds containing monomers having an unsaturated radical bound to a carboxyl radical, e.g. acrylate type
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- C10M2209/10—Macromolecular compoundss obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
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- C10M2209/103—Polyethers, i.e. containing di- or higher polyoxyalkylene groups
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- C10M2215/02—Amines, e.g. polyalkylene polyamines; Quaternary amines
- C10M2215/06—Amines, e.g. polyalkylene polyamines; Quaternary amines having amino groups bound to carbon atoms of six-membered aromatic rings
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- C10M2219/04—Organic non-macromolecular compounds containing sulfur, selenium or tellurium as ingredients in lubricant compositions containing sulfur-to-oxygen bonds, i.e. sulfones, sulfoxides
- C10M2219/044—Sulfonic acids, Derivatives thereof, e.g. neutral salts
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- C10M2219/06—Thio-acids; Thiocyanates; Derivatives thereof
- C10M2219/062—Thio-acids; Thiocyanates; Derivatives thereof having carbon-to-sulfur double bonds
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- C10M2229/02—Unspecified siloxanes; Silicones
Abstract
The application discloses synthetic long-life natural gas engine oil and a preparation method thereof, wherein the natural gas engine oil comprises natural gas synthetic oil, alkyl naphthalene base oil and other additives. The synthetic long-life natural gas engine oil has the following effective benefits: the components are reasonable, the viscosity-temperature performance is good, and the high-temperature oil film retentivity is better; the deposit control performance is good, the change of the acid value and the viscosity of the oil product is small, and the cleaning performance is good; the oil change period is long, the high-temperature oil change agent has good oxidation and nitrification resistance, can inhibit the generation of oil sludge and control the deposits of a piston and an air valve; reasonable ash content control effectively prevents valve, valve system wearing and tearing, protects parts such as engine, can satisfy the demand of different fuel and different ash content products, has excellent performance in the aspect of top annular groove carbon, platform carbon, piston, ring and cylinder liner scotch etc..
Description
Technical Field
The application belongs to the field of engine lubrication, and particularly relates to synthetic natural gas engine oil with a long service life and a preparation method thereof.
Background
The natural gas is increasingly paid attention to due to the advantages of abundant resources, low emission pollution, low price and the like, and is considered as a fuel with great development prospect. The main component of the natural gas is methane, which is a gaseous fuel and can be fully mixed with air, so that no particles are discharged basically after combustion, and the generation amount of CO after combustion is little; natural gas produces less pollutant emissions over the life cycle of mining, production, storage, transportation, use, etc., as compared to other fossil fuels, and is therefore also referred to as "clean fuel".
However, the natural gas fuel exists in a combustion chamber in a gas form, the liquid lubricating property similar to gasoline and diesel oil is not provided, and the parts are abraded due to severe dry friction; there is no cooling effect of liquid fuel to the air entering the combustion chamber by evaporation, so the temperature of the combustion chamber will be higher, the engine oil is easy to oxidize and nitrify to deteriorate, and the lubricating ability is poor. Therefore, the natural gas engine oil has the problems of short oil change period, easy oxidation and nitration of oil products, aggravated abrasion of engine valves and valve systems and the like.
Disclosure of Invention
In order to solve the problems, the application provides synthetic natural gas engine oil with long service life and a preparation method thereof; the synthetic natural gas engine oil with long service life comprises the following raw materials in parts by weight: 50-75 parts of natural gas synthetic oil, 15-30 parts of alkyl naphthalene base oil, 3.0-5.0 parts of detergent, 2.0-4.0 parts of dispersant, 0.5-1.5 parts of antioxidant, 0.5-1.5 parts of extreme pressure antiwear agent, 0.3-1.0 part of antirust agent, 0.1-0.5 part of corrosion inhibitor, 5.0-9.0 parts of viscosity index improver, 0.1-0.3 part of pour point depressant, 0.01-0.05 part of demulsifier and 0.01-0.05 part of defoaming agent.
The natural Gas synthetic oil, Gas to Liquid, is a base oil synthesized by using natural Gas as a raw material, and the process basis of the synthesis process is Fischer-Tropsch synthesis. The fischer-tropsch synthesis is a process developed in 1925 by the german chemists franz fisher and hans tolopro to synthesize liquid saturated hydrocarbons and hydrocarbons with synthesis gas (carbon monoxide and hydrogen) as raw material under the conditions of catalyst and proper reaction price adjustment, and the reaction process can be summarized as follows:
(2n+1)H2+nCO→CnH(2n+2)+nH2O
the natural gas synthetic oil is prepared by oxidizing natural gas molecules into carbon monoxide and hydrogen, and synthesizing liquid saturated long-chain alkane by a Fischer-Tropsch synthesis method. Natural gas is a gaseous low molecular hydrocarbon and non-hydrocarbon gas, the major component being methane, and also containing small amounts of ethane, propane, nitrogen and butane constituents. Compared with petroleum, natural gas has the advantages of pure composition, almost no sulfur, phosphorus and compounds thereof, large reserves, wide resources and the like, the main product of Fischer-Tropsch synthesis is hydrocarbon, the byproducts are carbon oxides and water, the reaction is relatively thorough, and the purification is easy. The natural gas synthetic oil synthesized by the process has the advantages of no sulfur, phosphorus and aromatic hydrocarbon, high saturation degree, high viscosity index, good viscosity-temperature characteristic, excellent oxidation stability and low-temperature performance, low volatility, good emulsification resistance and anti-foaming performance and the like.
The alkyl naphthalene has excellent antioxidant performance, hydrolysis stability, additive solubility and dispersing performance. Research shows that naphthalene rings rich in electrons in alkyl naphthalene base oil can absorb oxygen, thereby interrupting the transmission of an oxidation chain, preventing the continuous oxidation of hydrocarbon and preventing the occurrence of oxidation. A comparison of the antioxidant properties of the different base oils is given in Table 1. As can be seen from the data in the table, the alkyl naphthalene base oil has an extremely outstanding antioxidant performance compared with other base oils. The naphthalene ring structure rich in electrons has strong polarity, good solubility and dispersibility for polar additives, and table 2 shows that the aniline points of different types of base oil are high, the polarity is weak, and the aniline point is low and the polarity is strong. Meanwhile, different from ester base oil, the molecular structure of alkyl naphthalene has no easily hydrolyzed group, and the hydrolytic stability is better.
TABLE 1 comparison of antioxidant Properties of different types of base oils
| Item | Low viscosity alkanes Naphthalene radical | High viscosity alkanes Naphthalene radical | PAO s | Adipic acid Esters | Polyhydric alcohols Esters |
| Kinematic viscosity at 100 ℃ in mm2/s | 4.7 | 12.4 | 5.8 | 5.3 | 4.3 |
| Rotary oxygen bomb experiments (150 ℃,621kPa, water, copper)/min | 195 | 180 | 17 | 70 | - |
| Differential scanning calorimetry (180 ℃,3.45MPa) min | 60+ | 60+ | 2.5 | 5.0 | 60+ |
| Total acid number after oxidation corrosion test (as potassium hydroxide) Meter)/(mg. g-1) | 0.092 | 0.089 | - | 7.1 | 1.3 |
TABLE 2 comparison of aniline points for different base oils
| Item | Low viscosity alkylnaphthalenes | High viscosity alkylnaphthalenes | PAOs | Synthesis of esters | Alkyl benzene | Group I base oils |
| Kinematic viscosity at 100 ℃ in mm2/s | 4.7 | 12.4 | 5.5 | 5.2 | 4.2 | 4.0 |
| Aniline point, deg.C | 32 | 90 | 119 | 20 | 77.8 | 100 |
The naphthalene ring structure rich in electrons of the alkyl naphthalene base oil and the saturated alkane structure of the natural gas synthetic oil form association, and the naphthalene ring structure and the saturated alkane structure are cooperated with each other to form the following structure, so that the oxidation resistance characteristic of high saturation of the natural gas synthetic oil can be exerted, and the strong polarity and the water resistance of alkyl naphthalene can be achieved.
Wherein n is 10 to 25.
The natural gas synthetic oil and the alkyl naphthalene base oil are combined as the base oil, so that the natural gas synthetic oil has excellent thermal oxidation stability and can provide a super-long service life for natural gas engine oil; the cleaning agent also has excellent cleaning performance and wear-resistant and rust-proof performance, and can protect the friction pair of the engine comprehensively; the additive has excellent sensory performance, and can improve the stability of a system; excellent oil film stability and wear resistance, and better fuel economy.
Preferably, the detergent is a sulphonate detergent or a salicylate detergent. The metal salt in the detergent is sodium, calcium, magnesium, zinc, barium and the like, and the detergent can be added to clean carbon deposit and oil sludge in an engine, has a strong adsorption effect, and has a washing effect on a paint film, the carbon deposit and the like on a metal piece so as to disperse the paint film, the carbon deposit and the like in oil.
Preferably, the dispersant is an ashless dispersant which is a succinimide. The dispersant is added to maintain the suspension of insoluble substances oxidized at high temperature, and to dissolve sludge, carbon deposit, and the like deposited on the metal member, and the dispersant is dispersed in the oil as micelles to dissolve the oxygen-containing compound containing hydroxyl groups and carbonyl groups, the nitro-containing compound, water, and the like, thereby achieving a solubilizing effect.
Preferably, the antioxidant is one or more of macromolecular phenol and alkylated diphenylamine, the molecular weight of the macromolecular phenol is 900-1100, and the number of alkyl C atoms in the alkylated diphenylamine is C4～C8. The antioxidant can improve the oxidation resistance of oil products, reduce harmful deposits such as oil sludge and paint films, inhibit viscosity increase and prolong the service life of the oil products.
Preferably, the extreme pressure antiwear agent is a sulfur-phosphorus antiwear agent, and the sulfur-phosphorus antiwear agent comprises one or more of zinc dialkyl thiophosphate, zinc dialkyl dithiocarbamate and molybdenum thiocarbamate. The addition of the antiwear agent can reduce equipment wear, improve the extreme pressure resistance and the antiwear capacity of an oil product covered by a low oil film, and reduce equipment friction damage of a piston, a cylinder, a cam, a tappet and the like.
Preferably, the antirust agent is an inorganic sulfonate, an organic amine or a nitrogen-containing heterocyclic compound; the corrosion inhibitor is benzotriazole and derivatives thereof. The antirust agent forms a compact protective film on the surface of metal to prevent engine parts from being rusted; the corrosion inhibitor can protect nonferrous metals including copper, aluminum and alloys thereof in equipment, reduce chemical or electrochemical metal corrosion, and protect critical parts of an engine.
Preferably, the viscosity index improver is an ethylene propylene copolymer or a copolymer of styrene and diene; the pour point depressant is a polymethacrylate polymer. The viscosity index improver can increase the viscosity of oil products, improve the viscosity-temperature characteristic of the oil products, has good low-temperature starting performance, reduces abrasion, saves fuel oil, and enables the oil products to be suitable for a wider temperature range; pour point depressant in this application can improve the low temperature flow property of oil, improves cold startability, reduces the start-up wearing and tearing, reduces the fuel loss.
Preferably, the demulsifier is an oil-soluble nonionic surfactant which is a polymer of ethylene oxide and propylene oxide with the molecular weight of 1500-10000.
Preferably, the antifoaming agent is a silicone defoaming agent, and the silicone defoaming agent is a macromolecular siloxane defoaming agent.
On the other hand, the application also discloses a preparation method of the synthetic natural gas engine oil with long service life, which comprises the following steps:
s1: adding 45-55 wt% of natural gas synthetic oil and 45-55 wt% of alkyl naphthalene base oil into a blending kettle for stirring, wherein the stirring temperature is 48-52 ℃, and the stirring speed is 90-110 r/min;
s2: adding a detergent, a dispersant, an antioxidant, an extreme pressure antiwear agent, an antirust agent, a corrosion inhibitor, a viscosity index improver and a pour point depressant, and remaining natural gas synthetic oil and alkyl naphthalene base oil in sequence, and continuing to stir for 1-2 hours;
s3: and sequentially adding a demulsifier and a defoaming agent, stopping heating, continuously stirring and cooling to room temperature to obtain the synthetic long-life natural gas engine oil.
This application can bring following beneficial effect: the synthetic long-life natural gas engine oil has the following effective benefits: the components are reasonable, the viscosity-temperature performance is good, and the high-temperature oil film retentivity is better; the deposit control performance is good, the change of the acid value and the viscosity of the oil product is small, and the cleaning performance is good; the oil change period is long, the high-temperature oil change agent has good oxidation and nitrification resistance, can inhibit the generation of oil sludge and control the deposits of a piston and an air valve; reasonable ash content control effectively prevents parts such as valve, valve system wearing and tearing, protection engine, can satisfy the demand of different fuel and different ash content products, has excellent performance in the aspect of top annular carbon, platform carbon, piston, ring and cylinder liner scotch etc..
Detailed Description
The preparation method of the synthetic natural gas engine oil with long service life comprises the following steps:
adding 45-55 wt% of natural gas synthetic oil and alkyl naphthalene base oil into a blending kettle, starting stirring at 50 +/-2 ℃ and at a stirring speed of 100 +/-10 r/min. Keeping the temperature and the stirring speed, sequentially adding a detergent, a dispersant, an antioxidant, an extreme pressure antiwear agent, an antirust agent, a corrosion inhibitor, a viscosity index improver and a pour point depressant, continuously keeping the stirring temperature of 50 +/-2 ℃ and the stirring speed of 100 +/-10 r/min, and stirring and blending for 1-2 hours. Then adding a demulsifier and a defoaming agent in sequence. The heating was turned off and the mixture was cooled to room temperature with stirring. The stirring time of the whole blending process is not less than 4 hours. Thus obtaining the synthetic natural gas engine oil with long service life. After blending, filtering for 2-3 times by using a filtering system with the filtering precision not more than 5 mu m, and filling the mixture into a finished product.
The specific implementation conditions are as follows:
example 1
| Sample composition | Name of raw materials | Content (kg) | Manufacturer of the product |
| Natural gas synthetic oil | GTL 430 | 64.34 | SHELL |
| Alkyl naphthalene base oil | Synesstic 12 | 20 | ExxonMobil |
| Detergent composition | Sulfonate detergent | 3 | Chevron |
| Dispersing agent | Succinimides | 4 | Infineum |
| Antioxidant agent | Alkylated diphenylamines | 1 | BASF |
| Extreme pressure antiwear agent | Zinc dialkylthiophosphates | 0.5 | Vanderbilt |
| Rust inhibitor | Nitrogen-containing heterocyclic compound | 0.6 | BASF |
| Corrosion inhibitors | Benzotriazole and derivative thereof | 0.2 | Vanderbilt |
| Viscosity index improver | Copolymers of styrene and dienes | 6 | Infineum |
| Pour point depressant | Polymethacrylate polymer | 0.3 | Evonik |
| Demulsifier | Ethylene oxide/propylene oxide block copolymers | 0.04 | Lubrizol |
| Defoaming agent | Organic siloxane | 0.02 | Lubrizol |
Example 2
| Sample composition | Name of raw materials | Content (kg) | Manufacturer of the product |
| Natural gas synthetic oil | GTL 420 | 55.85 | SHELL |
| Alkyl naphthalene base oil | Synesstic 12 | 25 | ExxonMobil |
| Detergent composition | Sulfonate detergent | 4.5 | Chevron |
| Dispersing agent | Succinimides | 4 | Infineum |
| Antioxidant agent | High molecular phenol | 1.5 | BASF |
| Extreme pressure antiwear agent 1 | Zinc dialkylthiophosphates | 0.5 | Vanderbilt |
| Extreme pressure antiwear agent 2 | Molybdenum thiocarbamate | 0.5 | Vanderbilt |
| Rust inhibitor | Organic amine | 0.6 | BASF |
| Corrosion inhibitors | Benzotriazole and derivative thereof | 0.4 | Vanderbilt |
| Viscosity index improver | Ethyl allyl alcoholOlefin copolymers | 7 | Lubrizol |
| Pour point depressant | Polymethacrylate polymer | 0.1 | Evonik |
| Demulsifier | Ethylene oxide/propylene oxide block copolymers | 0.03 | Lubrizol |
| Defoaming agent | Organic siloxane | 0.02 | Lubrizol |
Example 3
| Sample composition | Name of raw materials | Content (kg) | Manufacturer of the product |
| Natural gas synthetic oil | GTL 420 | 64.14 | SHELL |
| Alkyl naphthalene base oil | KR-019 | 20 | KING |
| Detergent composition | Sulfonate detergent | 4 | Chevron |
| Dispersing agent | Succinimides | 3 | Infineum |
| Antioxidant agent | Alkylated diphenylamines | 1 | Chemtura |
| Extreme pressure antiwear agent 1 | Zinc dialkylthiophosphates | 0.2 | Vanderbilt |
| Extreme pressure antiwear agent 2 | Zinc dialkyldithiocarbamate | 0.3 | Vanderbilt |
| Extreme pressure antiwear agent 3 | Molybdenum thiocarbamate | 0.5 | Vanderbilt |
| Rust inhibitor | Nitrogen-containing heterocyclic compound | 0.4 | BASF |
| Corrosion inhibitors | Benzotriazole and derivative thereof | 0.3 | BASF |
| Viscosity index improver | Copolymers of styrene and dienes | 6 | Infineum |
| Pour point depressant | Polymethacrylate polymer | 0.1 | Evonik |
| Demulsifier | Ethylene oxide/propylene oxide block copolymers | 0.02 | Lubrizol |
| Defoaming agent | Organic siloxane | 0.04 | Lubrizol |
Example 4
| Sample composition | Name of raw materials | Content (kg) | Manufacturer of the product |
| Natural gas synthetic oil | GTL430 | 52.64 | SHELL |
| Alkyl naphthalene base oil | NA-LUBE KR-015 | 30 | KING |
| Detergent composition | Medium base number calcium alkylsalicylate | 4 | Infineum |
| Dispersing agent | Monoalkenyl succinimide | 3 | Lubrizol |
| Antioxidant 1 | Di-tert-butyl-p-cresol | 0.1 | BASF |
| Antioxidant 2 | Octyl butyl diphenylamine | 0.5 | Chemtura |
| Extreme pressure antiwear agent | Zinc dialkyl dithiophosphate | 1.5 | Afton |
| Rust inhibitor | Barium sulfonate | 0.5 | KING |
| Corrosion inhibitors | Alkylated benzotriazoles | 0.5 | Vanderbilt |
| Viscosity index improver | Ethylene propylene copolymer | 7.0 | Lubrizol |
| Pour point depressant | Polymethacrylate | 0.2 | Evonik |
| Demulsifier | Ethylene oxide/propylene oxide block copolymers | 0.01 | Lubrizol |
| Defoaming agent | Organic siloxane | 0.05 | Lubrizol |
Example 5
| Sample composition | Name of raw materials | Content (kg) | Manufacturer of the product |
| Natural gas synthetic oil | GTL430 | 70.77 | SHELL |
| Alkyl naphthalene base oil | NA-LUBE KR-019 | 15 | KING |
| Detergent composition | Low base number calcium alkylsalicylate | 5 | Infineum |
| Dispersing agent | High molecular weight succinimides | 2 | Lubrizol |
| Antioxidant 1 | High molecular weight liquid phenol | 0.5 | BASF |
| Antioxidant 2 | Dinonylated diphenylamines | 0.5 | BASF |
| Extreme pressure antiwear agent | Molybdenum thiocarbamate | 0.5 | Vanderbilt |
| Rust inhibitor | Sulfonic acid calcium salt | 0.3 | Chemtura |
| Corrosion inhibitors | Alkylated benzotriazoles | 0.1 | Vanderbilt |
| Viscosity index improver | Hydrogenated styrene isoprene Polymer | 5.0 | Infineum |
| Pour point depressant | Polymethacrylate | 0.3 | Evonik |
| Demulsifier | Ethylene oxide/propylene oxide block copolymers | 0.03 | Lubrizol |
| Defoaming agent | Organic siloxane | 0.03 | Lubrizol |
Example 6
| Sample composition | Name of raw materials | Content (kg) | Manufacturer of the product |
| Natural gas synthetic oil | GTL430 | 55.94 | SHELL |
| Alkyl naphthalene base oil | NA-LUBE KR-015 | 25 | KING |
| Detergent composition | High base number alkylated calcium sulfonate | 3 | Infineum |
| Dispersing agent | High molecular weight succinimides | 4 | Lubrizol |
| Antioxidant 1 | High molecular weight liquid phenol | 0.25 | BASF |
| Antioxidant 2 | Octyl butyl diphenylamine | 0.25 | BASF |
| Extreme pressure antiwear agent | Zinc dialkyldithiocarbamate | 1.0 | Lubrizol |
| Rust inhibitor | Barium sulfonate | 1.0 | KING |
| Corrosion inhibitors | Alkylated benzotriazoles | 0.3 | Vanderbilt |
| Viscosity index improver | Ethylene propylene copolymer | 9.0 | Lubrizol |
| Pour point depressant | Polymethacrylate | 0.2 | Evonik |
| Demulsifier | Ethylene oxide/propylene oxide block copolymers | 0.05 | Lubrizol |
| Defoaming agent | Organic siloxane | 0.01 | Lubrizol |
Comparative example 1
Comparative example 2
Example 7: characterization of
The characterization means in this example are shown in the following table:
| serial number | Performance index | Method basis |
| 1 | Kinematic viscosity, 100 deg.C | GB/T 265-88 |
| 2 | Viscosity index | GB/T 1995-98 |
| 3 | Flash point, DEG C | GB/T 3536-2008 |
| 4 | Pour point, DEG C | GB/T 3535-2006 |
| 5 | Apparent viscosity CCS, mPas of engine oil | GB/T 6538-2000 |
| 6 | Low temperature pumping viscosity MRV, mPas | SH/T 0652-2013 |
| 7 | Evaporation loss, 250 ℃, 1h | SH/T0059-1996 |
| 8 | Total base number (in terms of potassium hydroxide)/(mg. g)-1) | SH/T 0251-2004 |
| 9 | Sulfated ash content% | GB/T 2433-2011 |
| 10 | Corrosion of copper sheet at 100 deg.C for 3 hr | GB/T 5096-2017 |
Summary of the experimental methods:
1. kinematic viscosity: GB/T265-88 petroleum product kinematic viscosity measurement method and dynamic viscometer algorithm, under a certain constant temperature, determine the time that a certain volume of liquid flows through a calibrated glass capillary viscometer under the gravity, and the product of the capillary constant and the flow time of the viscometer is the kinematic viscosity of the liquid measured at the temperature.
2. Viscosity index: GB/T1995-98 petroleum product viscosity index calculation method, a method for calculating the viscosity index of lubricating oil and related substances from kinematic viscosity at 40 ℃ and 100 ℃. The viscosity index is a predetermined value that characterizes the kinematic viscosity of a petroleum product as a function of temperature.
3. Flash point: GB/T-3536 & 2008 & lt 2008 & gt method for determining flash point and burning point of petroleum products by using Cleveland open cup method, a sample is put into a test cup to a specified scale mark, the temperature of the sample is rapidly increased, and when the flash point is close, the temperature is slowly increased at a constant rate. At specified temperature intervals, a small test flame is swept across the test cup so that the lowest temperature at which the test flame causes a vapor flash on the upper portion of the sample page is the flash point.
4. Pour point: GB/T3535-. The lowest temperature at which the sample was observed to be able to flow was recorded as the pour point.
5. Apparent viscosity of engine oil CCS: GB/T6538-. The speed of rotation of the rotor is corrected as a function of viscosity. The viscosity of the sample is determined from the result of the correction and the rotational speed of the rotor.
6. Low temperature pump viscosity MRV: SH/T0652-2013 engine oil yield stress and apparent viscosity determination at low temperatures, the test oil is thermostated at 80 ℃ and then cooled to the final test temperature at a programmed cooling rate. The yield stress of the test oil is measured by gradually applying a lower torque to the rotor shaft until rotation begins. Then, a higher torque is applied to determine the apparent viscosity of the test oil.
7. Evaporation loss: reference NOACK evaporative loss SH/T0059-1996: the sample was heated at 250 ℃ under constant pressure for 1 hour with an evaporation loss measuring apparatus, and the evaporated oil vapor was carried away by air. The evaporation loss of the sample was measured from the difference in mass between the sample before and after heating.
8. Total base number: SH/T0251-2004 petroleum product alkali value determination method (perchloric acid point titration method), the sample is dissolved in a titration reagent, perchloric acid glacial acetic acid standard titration solution is used as a titrant, a glass electrode is used as an indicating electrode, a calomel electrode is used as a reference electrode for point titration, and a potential jump point of a potential titration curve is used as a judgment end point.
9. Sulfated ash content: GB/T2433 + 2011 additive and additive-containing lubricating oil sulfated ash assay, the sample was ignited and burned until only ash and carbon remained. After cooling, the residue was treated with sulfuric acid and heated at 775 ℃ until the carbon was completely oxidized. Cooling the ash, treating with sulfuric acid, heating at 775 deg.C and constant weight to obtain the final product.
10. Copper sheet corrosion: according to the GB/T5096-. The experimental conditions adopted in the present discovery were a temperature of 100 ℃ and an experimental time of 3 hours.
TABLE 3 examples and comparative product Performance test results
From the data in table 3 above, the synthetic long-life natural gas engine oil of the present invention has the following advantages:
1. lower evaporation loss: the evaporation loss of the inventive examples is significantly lower than that of comparative examples 1 and 2, which shows that the inventive examples have less oil loss.
2. Better low temperature flow properties: the indexes of pour point resistance, apparent viscosity of engine oil and low-temperature pumping viscosity of the embodiment of the invention are obviously superior to those of the comparative example 1 and the comparative example 2, which shows that the embodiment of the invention has better low-temperature flow performance, smoother starting, lower engine starting abrasion and better fuel economy.
3. More reasonable ash and base number: the embodiment of the invention has more reasonable ash content and reduced value, can effectively prevent the abrasion of the valve and the valve system, protects the components of the engine and the like, and meets the requirements of different fuels.
4. Longer oil change cycle: in two China heavy-duty trucks equipped with natural gas engines, the synthetic long-life natural gas engine oil of example 5 of the invention and the gas engine oil of comparative example 1 and comparative example 2 were subjected to driving experiments respectively, the fuel type LNG, the power output 430 horsepower, the oil change period 50000 km, and the experiment period 3 periods, and the viscosity, the base number, the insoluble index and the iron content change were respectively sampled and detected.
Table 4 oil performance test results of example 5
TABLE 5 oil Performance test results for comparative example 1 and comparative example 2
From the data in tables 4 and 5 above, it can be seen that: after 3 cycles of the driving experiment, each index of the embodiment of the invention is obviously superior to that of the comparative example, and the invention has larger performance allowance. Therefore, the synthetic long-life natural gas engine oil can reach the oil change mileage of more than 50000 kilometers in a mobile natural gas engine.
In conclusion, the synthetic natural gas engine oil with long service life provided by the invention has the following advantages:
a) the natural gas synthetic oil and the alkyl naphthyl base oil are matched with each other to generate a synergistic effect, so that the performance of the engine oil is effectively improved, and the additive has good sensitivity and stable performance;
b) the synthetic natural gas engine oil with long service life has excellent high-temperature oxidation resistance and anti-nitration capability, effectively controls the generation of harmful sediments such as oil sludge, paint film, carbon deposit, colloid and the like, keeps the engine clean, and has the cleaning performance 5-10 times higher than that of other commercial products;
c) the synthetic long-life natural gas engine oil has excellent low-temperature characteristics, the low-temperature starting performance of the synthetic long-life natural gas engine oil is improved by 2-3 times compared with other commercial products, the starting abrasion is effectively reduced, and the fuel oil loss is reduced;
d) the evaporation loss is small, the engine oil loss is low, and the engine oil loss of the synthetic long-life natural gas engine oil is reduced by about 20 percent compared with other commercial products;
e) reasonable alkali value and ash content control, effective prevention of abrasion of the valve and the valve system, protection of parts of an engine and the like, capability of meeting the requirements of different fuels and different ash content products, and excellent performance in the aspects of top ring groove carbon, platform carbon, piston, ring and cylinder sleeve scratch and the like;
f) the oil change period exceeds 50000 kilometers, the oil change period is long, and the oil use cost is low.
The embodiments in the present specification are described in a progressive manner, and the same and similar parts among the embodiments are referred to each other, and each embodiment focuses on the differences from the other embodiments. In particular, for the system embodiment, since it is substantially similar to the method embodiment, the description is simple, and for the relevant points, reference may be made to the partial description of the method embodiment.
The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.
Claims (10)
1. The synthetic natural gas engine oil with long service life is characterized by comprising the following raw materials in parts by weight: 50-75 parts of natural gas synthetic oil, 15-30 parts of alkyl naphthalene base oil, 3.0-5.0 parts of detergent, 2.0-4.0 parts of dispersant, 0.5-1.5 parts of antioxidant, 0.5-1.5 parts of extreme pressure antiwear agent, 0.3-1.0 part of antirust agent, 0.1-0.5 part of corrosion inhibitor, 5.0-9.0 parts of viscosity index improver, 0.1-0.3 part of pour point depressant, 0.01-0.05 part of demulsifier and 0.01-0.05 part of defoaming agent.
2. The synthetic long life natural gas engine oil of claim 1, wherein: the detergent is a sulfonate detergent or a salicylate detergent.
3. The synthetic long life natural gas engine oil of claim 1, wherein: the dispersant is an ashless dispersant which is succinimide.
4. Root of herbaceous plantThe synthetic long-life natural gas engine oil of claim 1, wherein: the antioxidant is one or more of macromolecular phenol and alkylated diphenylamine, the molecular weight of the macromolecular phenol is 900-1100, and the number of alkyl C atoms in the alkylated diphenylamine is C4～C8。
5. The synthetic long life natural gas engine oil of claim 1, wherein: the extreme pressure antiwear agent is a sulfur-phosphorus antiwear agent, and the sulfur-phosphorus antiwear agent comprises one or more of zinc dialkyl thiophosphate, zinc dialkyl dithiocarbamate and molybdenum thiocarbamate.
6. The synthetic long life natural gas engine oil of claim 1, wherein: the antirust agent is inorganic sulfonate, organic amine or a nitrogen-containing heterocyclic compound; the corrosion inhibitor is benzotriazole and derivatives thereof.
7. The synthetic long life natural gas engine oil of claim 1, wherein: the viscosity index improver is an ethylene-propylene copolymer or a copolymer of styrene and diene; the pour point depressant is a polymethacrylate polymer.
8. The synthetic long life natural gas engine oil of claim 1, wherein: the demulsifier is oil-soluble nonionic surfactant which is a polymer of ethylene oxide and propylene oxide with the molecular weight of 1500-10000.
9. The synthetic long life natural gas engine oil of claim 1, wherein: the anti-foaming agent is a silicone defoaming agent, and the silicone defoaming agent is a macromolecular siloxane defoaming agent.
10. The method for preparing the synthetic long-life natural gas engine oil according to claim 1, comprising:
s1: adding 45-55 wt% of natural gas synthetic oil and 45-55 wt% of alkyl naphthalene base oil into a blending kettle for stirring, wherein the stirring temperature is 48-52 ℃, and the stirring speed is 90-110 r/min;
s2: adding a detergent, a dispersant, an antioxidant, an extreme pressure antiwear agent, an antirust agent, a corrosion inhibitor, a viscosity index improver and a pour point depressant, and remaining natural gas synthetic oil and alkyl naphthalene base oil in sequence, and continuing to stir for 1-2 hours;
s3: and sequentially adding a demulsifier and a defoaming agent, stopping heating, continuously stirring and cooling to room temperature to obtain the synthetic long-life natural gas engine oil.
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