EP1538192B1 - Gasoline compositions - Google Patents
Gasoline compositions Download PDFInfo
- Publication number
- EP1538192B1 EP1538192B1 EP04106249A EP04106249A EP1538192B1 EP 1538192 B1 EP1538192 B1 EP 1538192B1 EP 04106249 A EP04106249 A EP 04106249A EP 04106249 A EP04106249 A EP 04106249A EP 1538192 B1 EP1538192 B1 EP 1538192B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- gasoline
- range
- nitrogen
- boiling
- attapulgite
- 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.)
- Not-in-force
Links
- 239000003502 gasoline Substances 0.000 title claims description 62
- 239000000203 mixture Substances 0.000 title claims description 40
- 229930195733 hydrocarbon Natural products 0.000 claims description 34
- 150000002430 hydrocarbons Chemical class 0.000 claims description 34
- 229910052625 palygorskite Inorganic materials 0.000 claims description 30
- 238000000034 method Methods 0.000 claims description 24
- 239000004215 Carbon black (E152) Substances 0.000 claims description 21
- 238000009835 boiling Methods 0.000 claims description 21
- 239000003599 detergent Substances 0.000 claims description 21
- 239000002734 clay mineral Substances 0.000 claims description 20
- 229960000892 attapulgite Drugs 0.000 claims description 17
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 claims description 17
- 239000004113 Sepiolite Substances 0.000 claims description 15
- 229910052624 sepiolite Inorganic materials 0.000 claims description 15
- 235000019355 sepiolite Nutrition 0.000 claims description 15
- -1 hydrocarbyl amine Chemical class 0.000 claims description 11
- 229910000286 fullers earth Inorganic materials 0.000 claims description 9
- 229920002367 Polyisobutene Polymers 0.000 claims description 8
- 125000001183 hydrocarbyl group Chemical group 0.000 claims description 7
- 238000002156 mixing Methods 0.000 claims description 7
- KZNICNPSHKQLFF-UHFFFAOYSA-N succinimide Chemical compound O=C1CCC(=O)N1 KZNICNPSHKQLFF-UHFFFAOYSA-N 0.000 claims description 6
- 238000002485 combustion reaction Methods 0.000 claims description 5
- 229920000768 polyamine Polymers 0.000 claims description 5
- 238000002360 preparation method Methods 0.000 claims description 4
- 229960002317 succinimide Drugs 0.000 claims description 3
- 239000000446 fuel Substances 0.000 description 40
- 230000000052 comparative effect Effects 0.000 description 15
- 239000000654 additive Substances 0.000 description 12
- 230000000996 additive effect Effects 0.000 description 12
- 238000012360 testing method Methods 0.000 description 11
- 239000003463 adsorbent Substances 0.000 description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 9
- 239000004927 clay Substances 0.000 description 9
- 239000000463 material Substances 0.000 description 9
- 239000005864 Sulphur Substances 0.000 description 8
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 7
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 7
- 239000003054 catalyst Substances 0.000 description 6
- 239000003112 inhibitor Substances 0.000 description 6
- 239000011777 magnesium Substances 0.000 description 6
- 239000000047 product Substances 0.000 description 6
- 150000001875 compounds Chemical class 0.000 description 5
- 230000006866 deterioration Effects 0.000 description 5
- 238000001914 filtration Methods 0.000 description 5
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 description 5
- 239000007788 liquid Substances 0.000 description 5
- 229910052901 montmorillonite Inorganic materials 0.000 description 5
- 238000011282 treatment Methods 0.000 description 5
- 239000002816 fuel additive Substances 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- 230000001590 oxidative effect Effects 0.000 description 4
- 239000005995 Aluminium silicate Substances 0.000 description 3
- IMNFDUFMRHMDMM-UHFFFAOYSA-N N-Heptane Chemical compound CCCCCCC IMNFDUFMRHMDMM-UHFFFAOYSA-N 0.000 description 3
- 230000000274 adsorptive effect Effects 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 235000012211 aluminium silicate Nutrition 0.000 description 3
- 150000001412 amines Chemical class 0.000 description 3
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 3
- 239000000440 bentonite Substances 0.000 description 3
- 229910000278 bentonite Inorganic materials 0.000 description 3
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 description 3
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 description 3
- 235000009508 confectionery Nutrition 0.000 description 3
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 description 3
- GUJOJGAPFQRJSV-UHFFFAOYSA-N dialuminum;dioxosilane;oxygen(2-);hydrate Chemical compound O.[O-2].[O-2].[O-2].[Al+3].[Al+3].O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O GUJOJGAPFQRJSV-UHFFFAOYSA-N 0.000 description 3
- 238000004821 distillation Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 239000003921 oil Substances 0.000 description 3
- 238000007670 refining Methods 0.000 description 3
- 229930195734 saturated hydrocarbon Natural products 0.000 description 3
- 229910002027 silica gel Inorganic materials 0.000 description 3
- 239000000741 silica gel Substances 0.000 description 3
- 229960001866 silicon dioxide Drugs 0.000 description 3
- 238000013313 FeNO test Methods 0.000 description 2
- 241000282326 Felis catus Species 0.000 description 2
- 239000005909 Kieselgur Substances 0.000 description 2
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 2
- AFBPFSWMIHJQDM-UHFFFAOYSA-N N-methylaniline Chemical compound CNC1=CC=CC=C1 AFBPFSWMIHJQDM-UHFFFAOYSA-N 0.000 description 2
- 239000004721 Polyphenylene oxide Substances 0.000 description 2
- ATUOYWHBWRKTHZ-UHFFFAOYSA-N Propane Chemical compound CCC ATUOYWHBWRKTHZ-UHFFFAOYSA-N 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 150000001336 alkenes Chemical class 0.000 description 2
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical compound Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 description 2
- 239000003963 antioxidant agent Substances 0.000 description 2
- 235000006708 antioxidants Nutrition 0.000 description 2
- 239000002199 base oil Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000003610 charcoal Substances 0.000 description 2
- 230000003749 cleanliness Effects 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 239000000470 constituent Substances 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 150000002170 ethers Chemical class 0.000 description 2
- 238000005227 gel permeation chromatography Methods 0.000 description 2
- 239000011491 glass wool Substances 0.000 description 2
- 229910052622 kaolinite Inorganic materials 0.000 description 2
- 239000003350 kerosene Substances 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 239000006078 metal deactivator Substances 0.000 description 2
- TVMXDCGIABBOFY-UHFFFAOYSA-N octane Chemical compound CCCCCCCC TVMXDCGIABBOFY-UHFFFAOYSA-N 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 150000002989 phenols Chemical class 0.000 description 2
- 229920000570 polyether Polymers 0.000 description 2
- 238000006116 polymerization reaction Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910052902 vermiculite Inorganic materials 0.000 description 2
- 239000010455 vermiculite Substances 0.000 description 2
- 235000019354 vermiculite Nutrition 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 description 2
- NQBXSWAWVZHKBZ-UHFFFAOYSA-N 2-butoxyethyl acetate Chemical compound CCCCOCCOC(C)=O NQBXSWAWVZHKBZ-UHFFFAOYSA-N 0.000 description 1
- OGIQUQKNJJTLSZ-UHFFFAOYSA-N 4-butylaniline Chemical compound CCCCC1=CC=C(N)C=C1 OGIQUQKNJJTLSZ-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 239000005749 Copper compound Substances 0.000 description 1
- 229910021592 Copper(II) chloride Inorganic materials 0.000 description 1
- JPVYNHNXODAKFH-UHFFFAOYSA-N Cu2+ Chemical compound [Cu+2] JPVYNHNXODAKFH-UHFFFAOYSA-N 0.000 description 1
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical class S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 1
- PIICEJLVQHRZGT-UHFFFAOYSA-N Ethylenediamine Chemical compound NCCN PIICEJLVQHRZGT-UHFFFAOYSA-N 0.000 description 1
- VTLYFUHAOXGGBS-UHFFFAOYSA-N Fe3+ Chemical compound [Fe+3] VTLYFUHAOXGGBS-UHFFFAOYSA-N 0.000 description 1
- GOOHAUXETOMSMM-UHFFFAOYSA-N Propylene oxide Chemical group CC1CO1 GOOHAUXETOMSMM-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 150000007513 acids Chemical class 0.000 description 1
- 150000001298 alcohols Chemical class 0.000 description 1
- 150000001335 aliphatic alkanes Chemical class 0.000 description 1
- 125000002947 alkylene group Chemical group 0.000 description 1
- 229910001583 allophane Inorganic materials 0.000 description 1
- AZDRQVAHHNSJOQ-UHFFFAOYSA-N alumane Chemical class [AlH3] AZDRQVAHHNSJOQ-UHFFFAOYSA-N 0.000 description 1
- 239000004411 aluminium 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
- PZZYQPZGQPZBDN-UHFFFAOYSA-N aluminium silicate Chemical compound O=[Al]O[Si](=O)O[Al]=O PZZYQPZGQPZBDN-UHFFFAOYSA-N 0.000 description 1
- 229910000323 aluminium silicate Inorganic materials 0.000 description 1
- IXWIAFSBWGYQOE-UHFFFAOYSA-M aluminum;magnesium;oxygen(2-);silicon(4+);hydroxide;tetrahydrate Chemical compound O.O.O.O.[OH-].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[O-2].[Mg+2].[Al+3].[Si+4].[Si+4].[Si+4].[Si+4] IXWIAFSBWGYQOE-UHFFFAOYSA-M 0.000 description 1
- HPTYUNKZVDYXLP-UHFFFAOYSA-N aluminum;trihydroxy(trihydroxysilyloxy)silane;hydrate Chemical compound O.[Al].[Al].O[Si](O)(O)O[Si](O)(O)O HPTYUNKZVDYXLP-UHFFFAOYSA-N 0.000 description 1
- 150000001408 amides Chemical class 0.000 description 1
- 238000005576 amination reaction Methods 0.000 description 1
- 229910052612 amphibole Inorganic materials 0.000 description 1
- 230000003078 antioxidant effect Effects 0.000 description 1
- 125000003118 aryl group Chemical group 0.000 description 1
- 229910001680 bayerite Inorganic materials 0.000 description 1
- 235000013844 butane Nutrition 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000006229 carbon black Substances 0.000 description 1
- 235000019241 carbon black Nutrition 0.000 description 1
- 239000000969 carrier Substances 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000004523 catalytic cracking Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910001919 chlorite Inorganic materials 0.000 description 1
- 229910052619 chlorite group Inorganic materials 0.000 description 1
- QBWCMBCROVPCKQ-UHFFFAOYSA-N chlorous acid Chemical compound OCl=O QBWCMBCROVPCKQ-UHFFFAOYSA-N 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 239000000356 contaminant Substances 0.000 description 1
- 150000001880 copper compounds Chemical class 0.000 description 1
- 229910001431 copper ion Inorganic materials 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 229960003280 cupric chloride Drugs 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- GDVKFRBCXAPAQJ-UHFFFAOYSA-A dialuminum;hexamagnesium;carbonate;hexadecahydroxide Chemical compound [OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Al+3].[Al+3].[O-]C([O-])=O GDVKFRBCXAPAQJ-UHFFFAOYSA-A 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 239000003085 diluting agent Substances 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 238000005194 fractionation Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000007792 gaseous phase Substances 0.000 description 1
- 239000003254 gasoline additive Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 229910052621 halloysite Inorganic materials 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 238000007037 hydroformylation reaction Methods 0.000 description 1
- 238000005984 hydrogenation reaction Methods 0.000 description 1
- 229910001701 hydrotalcite Inorganic materials 0.000 description 1
- 229960001545 hydrotalcite Drugs 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 description 1
- 229910052900 illite Inorganic materials 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000004811 liquid chromatography Methods 0.000 description 1
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Inorganic materials [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 description 1
- HCWCAKKEBCNQJP-UHFFFAOYSA-N magnesium orthosilicate Chemical compound [Mg+2].[Mg+2].[O-][Si]([O-])([O-])[O-] HCWCAKKEBCNQJP-UHFFFAOYSA-N 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- 239000000391 magnesium silicate Substances 0.000 description 1
- 229910052919 magnesium silicate Inorganic materials 0.000 description 1
- 235000019792 magnesium silicate Nutrition 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003550 marker Substances 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 235000010755 mineral Nutrition 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 239000002808 molecular sieve Substances 0.000 description 1
- IJDNQMDRQITEOD-UHFFFAOYSA-N n-butane Chemical class CCCC IJDNQMDRQITEOD-UHFFFAOYSA-N 0.000 description 1
- 239000004309 nisin Substances 0.000 description 1
- VGIBGUSAECPPNB-UHFFFAOYSA-L nonaaluminum;magnesium;tripotassium;1,3-dioxido-2,4,5-trioxa-1,3-disilabicyclo[1.1.1]pentane;iron(2+);oxygen(2-);fluoride;hydroxide Chemical compound [OH-].[O-2].[O-2].[O-2].[O-2].[O-2].[F-].[Mg+2].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[Al+3].[K+].[K+].[K+].[Fe+2].O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2.O1[Si]2([O-])O[Si]1([O-])O2 VGIBGUSAECPPNB-UHFFFAOYSA-L 0.000 description 1
- 238000002103 osmometry Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000012466 permeate Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 125000000843 phenylene group Chemical group C1(=C(C=CC=C1)*)* 0.000 description 1
- 229920013639 polyalphaolefin Polymers 0.000 description 1
- 229920001083 polybutene Polymers 0.000 description 1
- 229920001223 polyethylene glycol Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920006389 polyphenyl polymer Polymers 0.000 description 1
- 229920001451 polypropylene glycol Polymers 0.000 description 1
- 159000000001 potassium salts Chemical class 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000001294 propane Substances 0.000 description 1
- 239000008262 pumice Substances 0.000 description 1
- 238000002407 reforming Methods 0.000 description 1
- 150000003335 secondary amines Chemical class 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229910021647 smectite Inorganic materials 0.000 description 1
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 description 1
- 159000000000 sodium salts Chemical class 0.000 description 1
- 230000003019 stabilising effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 239000011289 tar acid Substances 0.000 description 1
- 150000003609 titanium compounds Chemical class 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
- 239000011882 ultra-fine particle Substances 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
- 239000011592 zinc chloride Substances 0.000 description 1
- 235000005074 zinc chloride Nutrition 0.000 description 1
- 150000003755 zirconium compounds Chemical class 0.000 description 1
Classifications
-
- 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
- C10L1/04—Liquid carbonaceous fuels essentially based on blends of hydrocarbons
- C10L1/06—Liquid carbonaceous fuels essentially based on blends of hydrocarbons for spark ignition
-
- 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
- C10L1/10—Liquid carbonaceous fuels containing additives
- C10L1/14—Organic compounds
- C10L1/22—Organic compounds containing nitrogen
- C10L1/234—Macromolecular compounds
- C10L1/238—Macromolecular compounds obtained otherwise than by reactions involving only carbon-to-carbon unsaturated bonds
- C10L1/2383—Polyamines or polyimines, or derivatives thereof (poly)amines and imines; derivatives thereof (substituted by a macromolecular group containing 30C)
Definitions
- This invention relates to gasoline compositions, more particularly to gasoline compositions containing a nitrogen-containing detergent, to processes for their preparation, and to their use in operation of spark-ignition engines.
- UK Patent 437, 023 discloses a process for refining cracked hydrocarbons of substantially gasoline boiling range by the treatment with a solid active adsorbent such as fullers earth, clay or other suitable adsorptive catalysts, under conditions of elevated temperature and superatmospheric pressure adequate to maintain said hydrocarbons in substantially liquid phase, which comprises first removing from said hydrocarbons relatively unstable low boiling constituents, namely dissolved gases, propane, part or all of the butanes and their corresponding unsaturates, and reducing the vapour pressure of said hydrocarbons by submitting them to a stabilising fractionation and thereupon subjecting the stabilised hydrocarbons, whilst still hot, to said refining treatment.
- a solid active adsorbent such as fullers earth, clay or other suitable adsorptive catalysts
- US Patent 3,529,944 discloses a method for clarifying and stabilizing hydrocarbon liquids which are subject to oxidative deterioration, particularly jet fuels, which includes adding to the fuel a material which accelerates the oxidative deterioration of the fuel, such as a polyphenyl substituted lower alkane or lower alkylene, an alkanol ester of citric acid or acetoxy ethyl monobutylether; passing the hydrocarbon liquid through the solid, particulate, adsorbent media to remove microimpurities and the products of oxidative deterioration; and thereafter adding additional amounts of a stabilizing material to stabilize the hydrocarbon liquid against further oxidative deterioration.
- a material which accelerates the oxidative deterioration of the fuel such as a polyphenyl substituted lower alkane or lower alkylene, an alkanol ester of citric acid or acetoxy ethyl monobutylether
- Suitable adsorbent materials include various types of natural or synthetic clays, either treated or untreated, fullers earth, attapulgite, silica gel and adsorbent catalysts.
- jet fuels are treated by filtration through attapulgite clay. It is specifically taught (Column 6, lines 27 to 32) that the effectiveness of the filtration process can be greatly improved and the life of the filter substantially prolonged if certain promoting agents which apparently promote oxidation and speed up certain types of degradation are added prior to filtration.
- an antioxidant in the form of 2,6-ditertiary butyl paracresol is added to some jet fuels together with a mixed polyamine product known as "jet fuel additive 5" "JFA5" prior to adsorptive filtration.
- adsorbent-treated cat cracked gasoline is blended into a fuel composition for use in an internal combustion engine.
- adsorbents which are useful "for treating the cat cracked gasoline include many of the well known adsorbents such as silica, alumina, silica-alumina, charcoal, carbon black, magnesium silicate, aluminium silicate, zeolites, clay, fuller's earth, magnesia and the like".
- the adsorbent used is silica-gel.
- US Patent 5,951,851 relates to a process for removing elemental sulphur from fluids, particularly fuels such as gasoline, jet fuel, diesel, kerosene and fuel additives such as ethers.
- the process involves contacting the sulphur contaminated fluid with layered double hydroxide (or hydrotalcite) Mg 2 AlNO 3 ; mH 2 O or Mg 3 Al NO 3 ; mH 2 O, where m is the number of waters of hydration.
- layered double hydroxide or hydrotalcite
- Kao-tetraethylene glycol, Al 13 pillared montmorillonite, tetramethylammonium-montmorillonite, palygorskite-PF1-s, Kaolinite KGa-1, Kao-cellosolve and Iron (III) montmorillonite are ineffective in removing elemental sulphur, whilst the hydrotalcites Al 2 LiCl, Mg 2 AlNO 3 , Mg 2 FeNO 3 , Mg 3 FeNO 3 and Mg 3 AlNO 3 are particularly effective in removing elemental sulphur.
- Japanese publication JP 2002 285179 A relates to an anti-slagging fuel additive which is capable of preventing slagging, a phenomenon caused by the ash in a fuel of such a large ash content as is found in various kinds of fuel represented by coal and oil coke while the fuel is in process of combustion
- the anti-slagging fuel additive comprising a composition having one or more compounds selected from among aluminum compounds, silica compounds, titanium compounds and zirconium compounds invariably of a form of ultrafine particles 3 to 200 nm in particle diameter dispersed in water and/or oil in a stable state.
- US Patent 2,094,554 relates to the manufacture of volatile liquid motor fuels, such as gasoline and kerosene, which are relatively stable as to color and anti-knock properties, and have little tendency to form gum, said fuels containing natural or self-generated inhibitors which substantially stabilize the fuel against deterioration.
- volatile liquid motor fuels such as gasoline and kerosene
- the fuels may be prepared by manufacturig operations which include any ordinary or preferred cracking process in which heavy oils are converted into low boiling products such as gasoline; reforming operations in which naphtha is transformed into a product of higher anti-knock value; treatments with adsorptive catalysts, such as fuller's earth; treating and refining processes involving chemical polymerization, such as those using aluminium chloride, zinc chloride or other metallic halides; digestion processes for the pressure polymerization of the more reactive unsaturated constituents; and, high temperature and pressure hydrogenation operations (column 2, lines 28 to 42).
- Classes of materials which may be used as inhibitors include phenols, creylic acids, tar acid oils from coal or wood, polyhydric phenols, aromatic mono- and polyamines (column 3, lines 45 to 48).
- US Patent 2,768,885 relates to the sweetening of cracked naphthas which contain objectionable amounts of mercaptans. More particularly, US Patent 2,768,885 relates to the sweetening of cracked naphthas by means of a supported cupric chloride catalyst.
- a catalyst comprises essentially CuCl 2 , water and a carrier in the form of free flowing granules is dispersed into the sour naphtha until a substantially sweet naphtha has been obtained whereupon the sweet product naphtha is separated from the catalyst (column 1, lines 25 to 30).
- the carrier may be either an adsorbent material such as fuller's earth or acid treated clay or an essentially non-adsorbent material such as pumice or diatomaceous earth (column 1, lines 32 to 35). It is preferred to add to the sweet naphtha an effective amount of an oxidation inhibitor and a metal deactivator (column 1, lines 59 to 61), phenylene diamine-type inhibitors are disclosed at column 2, lines 47 to 65.
- Group (8) sepiolite, attapulgite and palygorskite, are described as fibrous clay minerals, and these have, as an important structural element, the amphibole double silica chain which is oriented parallel to the c axis.
- a gasoline composition comprising a major amount of a gasoline suitable for use in a spark-ignition engine, which gasoline comprises a blend of at least two hydrocarbon refinery components boiling within the gasoline boiling range, at least one of which hydrocarbon refinery components has been treated with a fibrous clay mineral of the sepiolite, attapulgite and palygorskite groups, and a minor amount of a nitrogen-containing detergent containing a hydrocarbyl group having a number average molecular weight (Mn) in the range 750 to 6000.
- Mn number average molecular weight
- the blend of at least two refinery components has been treated with the fibrous clay mineral.
- the nitrogen-containing detergent containing a hydrocarbyl group having a number average molecular weight (Mn) in the range 750 to 6000 may be an amine, e.g. a polyisobutylene mono-amine or polyamine, such as a polyisobutylene ethylene diamine, or N-polyisobutenyl-N',N'-dimethyl-1,3-diaminopropane, or amides, e.g. a polyisobutenyl succinimide, and are variously descsribed, for example, in US Patent 5,855,629 and WO 0132812 .
- the nitrogen-containing detergent is a polyisobutylene monoamine or polyamine or a polyisobutenyl succinimide.
- a particularly preferred nitrogen-containing detergent is hydrocarbyl amine of formula R 1 -NH 2 and R 1 represents a group R 2 or a group R 2 -CH 2 - and R 2 represents a hydrocarbyl group having a number average molecular weight in the range 750 to 6000, preferably in the range 900 to 3000, more preferably 950 to 2000, and most preferably in the range 950 to 1350, e.g. a polybutenyl or polyisobutenyl group having a number average molecular weight in the range 950 to 1050.
- the nitrogen-containing detergents are known materials and may be prepared by known methods or by methods analogous to known methods.
- US Patent 4,832,702 describes the preparation of polybutenyl and polyisobutenyl amines from an appropriate polybutene or polyisobutene by hydroformylation and subsequent amination of the resulting oxo product under hydrogenating conditions.
- Suitable hydrocarbyl amines are obtainable from BASF A.G., under the trade mark "Kerocom”.
- the nitrogen-containing detergent may be present in a wide range of concentrations, but is preferably present at a concentration in the range 25 to 2500 ppmw, based on total composition, more preferably 50 to 1000 ppmw, conveniently 50 to 500 ppmw and advantageously 50 to 250 ppmw.
- Number average molecular weights e.g. of hydrocarbons such as polyalkenes, may be determined by several techniques which give closely similar results. Conveniently Mn may be determined by vapour phase osmometry (VPO) (ASTM D 3592) or by modern gel permeation chromatography (GPC), e.g. as described for example in W.W. Yau, J.J. Kirkland and D.D. Bly, "Modern Size Exclusion Liquid Chromatography", John Wiley and Sons, New York, 1979 . Where the formula of a compound is known, the number average molecular weight can be calculated as its formula weight.
- VPO vapour phase osmometry
- GPC gel permeation chromatography
- gasolines suitable for use in spark ignition engines are mixtures of hydrocarbons having boiling points in the range from 25°C to 232°C and comprising mixtures of saturated hydrocarbons, olefinic hydrocarbons and aromatic hydrocarbons.
- Preferred are gasoline blends having a saturated hydrocarbon content ranging from 40 to 80 per cent volume, an olefinic hydrocarbon content ranging from 0 to 30 per cent volume and an aromatic hydrocarbon content ranging from 10 to 60 per cent volume.
- the gasoline can be derived from straight run gasoline, polymer gasoline, natural gasoline, dimer- or trimerised olefins, synthetically produced aromatic hydrocarbon mixtures from thermally or catalytically reformed hydrocarbons, or from catalytically cracked or thermally cracked petroleum stocks, or mixtures thereof.
- the hydrocarbon composition and octane level of the gasoline are not critical.
- the octane level, (R+M)/2 will generally be above 85. Any conventional gasoline can be used.
- hydrocarbons can be supplemented by up to substantial amounts of conventional alcohols or ethers conventionally known for use in gasoline.
- the gasoline composition is preferably lead-free, and this may be required by law. Where permitted, lead-free anti-knock compounds and/or valve-seat recession protectant compounds (e.g. known potassium salts, sodium salts or phosphorous compounds) may be present.
- lead-free anti-knock compounds and/or valve-seat recession protectant compounds e.g. known potassium salts, sodium salts or phosphorous compounds
- Modern gasolines are inherently low-sulphur fuels, e.g. containing less than 200 ppmw sulphur.
- the gasoline composition may additionally contain one or more corrosion inhibitors, anti-oxidants, dyes, dehazers, metal deactivators, detergents other than a nitrogen-containing detergent containing a hydrocarbyl group having a number average molecular weight (Mn) in the range 750 to 6000 (e.g. a polyether amine), synthetic or mineral oil carriers e.g. a polyalphaolefin or a polyoxyalkylene compound, friction modifiers, diluents and markers.
- Mn number average molecular weight
- the present invention further provides a process for the preparation of a gasoline composition of the invention, which comprises treating at least one hydrocarbon refinery component boiling within the gasoline boiling range with a fibrous clay mineral of the sepiolite, attapulgite and palygorskite groups, before or after blending said at least one hydrocarbon refinery component with at least one other hydrocarbon refinery component boiling within the gasoline boiling range, to form a gasoline suitable for use in a spark-ignition engine, and bringing the gasoline suitable for use in spark-ignition engine into admixture with the nitrogen-containing detergent.
- the treatment with fibrous clay mineral is effected with the hydrocarbons in the liquid phase, very conveniently at ambient temperature.
- the treatment may very conveniently be effected at atmospheric pressure.
- a particular hydrocarbon refinery component or combination/components of a gasoline is at least predominantly responsible for deposit formation when used as fuel in a spark-ignition engine, that component or combination of components may be treated with the fibrous clay mineral before blending with at least the other hydrocarbon refinery component to form the gasoline, it is preferred to treat the fully pre-blended gasoline.
- the process of the invention preferably comprises blending at least two hydrocarbon refinery components boiling within the gasoline boiling range and treating the resulting mixture with a fibrous clay mineral of the sepiolite, attapulgite and palygorskite groups, to form a gasoline suitable for use in a spark-ignition engine, and bringing the gasoline into admixture with the nitrogen-containing detergent.
- the fibrous clay mineral of the sepiolite, attapulgite and palygorskite, groups must at least contain at least one mineral of the sepiolite, attapulgite and palygorskite groups.
- fullers earth is used in published literature on clays in a number of different ways, but in the context of the present invention "fullers earth” comprises at least one fibrous clay mineral of the sepiolite, attapulgite and palygorskite groups.
- One type of fullers earth may comprise a mixture of montmorillonite and palygorskite.
- the fibrous clay mineral is sepiolite, attapulgite or fullers earth, as will be illustrated in the examples which follow this description.
- the fibrous clay mineral may remove iron and/or copper ions from iron and/or copper compounds which may contaminate hydrocarbon refinery components.
- spent clay contains iron and/or copper, whilst containing negligible organic contaminants, it may be susceptible for disposal as land fill, without prior incineration.
- the present invention further provides a method of operating a spark-ignition engine, which comprises bringing into the combustion chambers of such engine a gasoline composition according to the invention giving improved engine cleanliness, e.g. reduced intake valve deposits.
- Base fuel blends were prepared from 50%v of an unleaded gasoline (95 ULG) of RON 95.7, MON 84.6, and having sulphur content (ASTM D 2622-94) of 483 ppmw, saturated hydrocarbon content of 49.1% v/v, aromatics content of 29.6% v/v and olefins content of 21.3% v/v (ASTM D6623-01 (procedure C), density at 15°C (DIN 51757/V4) 735.1 kg/m 3 , distillation (ISO 3405/88) IBP 24°C, 10% 41°C, 50% 100°C, 90% 175°C and FBP 218°C and 50% v of a heavy catalytically cracked (HCC) gasoline (the higher boiling fraction of a refinery stream produced by catalytic cracking of heavier hydrocarbons), by mixing at ambient temperature (20°C).
- HCC heavy catalytically cracked
- the HCC gasoline had distillation (ISO 3405/88) IBP 65.6°C, 10% 79.3°C, 50% 94.3°C, 90% 124°C and FBP 153.3°C, sulphur content (ASTM D 2622-94) 520 ppmw, RON 91.8 and MON 79.7.
- the resulting base fuel blends had properties as follows:- density at 15°C (DIN 51757/V4) 746.6 kg/m 3 , distillation (ISO 3405/88) IBP 40°C, 10% 68°C, 50% 98.5°C, 90% 145°C, FBP 195.5°C, RON 93.2, and MON 81.
- Base fuel at ambient temperature (20°C) was poured into the column, to a depth of 25 to 30 cm above the clay.
- Flow rate was adjusted to 1 litre/hour, and the column was regularly topped up with fuel. Total volume of 50 litres was passed through each column. The first litre of permeate was discarded, and subsequently 5 litre samples were collected. The 2 nd ,4 th , 6 th , 8 th and final samples were tested for Fe and Cu content.
- the final samples were also subjected to testing in an intake valve deposit simulator test, using a multiple inclined hot plate (MIHPT) rig, in comparison both with untreated base fuel and with portions of both untreated base fuel and of final samples into which were incorporated (by mixing at ambient temperature (20°C)) a standard detergent additive package (“DP”), at a concentration of 380 ppmw.
- MIHPT multiple inclined hot plate
- DP standard detergent additive package
- Example 1 Attapulgite 30-60, ex Wilfrid Smith Limited (manufactured by Millwhite)
- Example 2 Fullers Earth 30-60, ex Aldrich
- Example 3 Sepiolite, ex Steetly Bentonite & Absorbents Ltd.
- Comparative A Talc
- ex Aldrich Comparative B Kaolin
- Ex Aldrich Comparative C Vermiculite
- ex Aldrich Comparative D Calcined Kaolin 22-60, ex Imerys.
- Comparative E Bentonite, ex Wilfrid Smith Limited (Manufactured by Cymbar)
- Comparative F Diatomaceous earth, ex Steetley Bentonite & Absorbents Ltd.
- This simulator test corresponds closely to that described in SAE Paper 890215, Daneshgari et al ., "The Influence of Temperature upon Gasoline Deposit guild-up on the Intake Valves", Detroit, USA, 27 February to 3 March 1989.
- the test rig utilises four inclined plates in parallel.
- the plates are strips of sandblasted aluminium 50 cm long and 2.5 cm wide, having a central groove along their lengths 3 mm wide and 1 mm deep, mounted in the rig at an angle of 3 degrees relative to the horizontal.
- the temperature at the top end of each plate is maintained at 400°C and at the middle of each plate is maintained at 250°C.
- Gasoline samples containing test materials at a concentration of non-volatile matter of 100 parts per million by weight (ppmw) in base fuel, are prepared, and 100 ml portions of the gasoline samples are delivered at a rate of 0.6 ml/minute from glass syringes fitted with 20 gauge steel hypodermic Luer lock needles into the groove at the top end of each plate. Once delivery is complete, after about 2 hours and 40 minutes, the plates are allowed to cool to ambient temperature (20°C) and are washed with n-heptane until the run-off liquid is clear, and are then left to dry before assessment of any deposit present.
- ambient temperature (20°C)
- n-heptane washed with n-heptane until the run-off liquid is clear, and are then left to dry before assessment of any deposit present.
- a clear portion of the plate is moved under the camera and an image thereof captured.
- the section of the plate containing deposit is then moved beneath the camera and an image thereof is captured.
- the image analyser divides, pixel by corresponding pixel, the deposit image by the clean image and automatically measures the area and optical density of deposit at the pixels contained within overall measuring frame, and calculates an integrated optical density for the image, the numerical value of which is recorded as a test rating.
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Description
- This invention relates to gasoline compositions, more particularly to gasoline compositions containing a nitrogen-containing detergent, to processes for their preparation, and to their use in operation of spark-ignition engines.
- It is known to treat hydrocarbons such as gasoline by passing them in the gaseous phase through filtering or absorbing material such as fullers earth or charcoal, e.g. as disclosed in
US Patent 2,090,007 ,US Patent 2,338,142 , orUK Patent 614,636 -
UK Patent 437, 023 -
US Patent 3,529,944 discloses a method for clarifying and stabilizing hydrocarbon liquids which are subject to oxidative deterioration, particularly jet fuels, which includes adding to the fuel a material which accelerates the oxidative deterioration of the fuel, such as a polyphenyl substituted lower alkane or lower alkylene, an alkanol ester of citric acid or acetoxy ethyl monobutylether; passing the hydrocarbon liquid through the solid, particulate, adsorbent media to remove microimpurities and the products of oxidative deterioration; and thereafter adding additional amounts of a stabilizing material to stabilize the hydrocarbon liquid against further oxidative deterioration. Suitable adsorbent materials (Col 5 lines 22 to 25) include various types of natural or synthetic clays, either treated or untreated, fullers earth, attapulgite, silica gel and adsorbent catalysts. In the examples, jet fuels are treated by filtration through attapulgite clay. It is specifically taught (Column 6, lines 27 to 32) that the effectiveness of the filtration process can be greatly improved and the life of the filter substantially prolonged if certain promoting agents which apparently promote oxidation and speed up certain types of degradation are added prior to filtration. In Table V, an antioxidant in the form of 2,6-ditertiary butyl paracresol is added to some jet fuels together with a mixed polyamine product known as "jet fuel additive 5" "JFA5" prior to adsorptive filtration. - In
US Patent 4,225,319 , in order to suppress carburettor deposit formation, adsorbent-treated cat cracked gasoline is blended into a fuel composition for use in an internal combustion engine. In Column 2, lines 57 to 62, it is stated that adsorbents which are useful "for treating the cat cracked gasoline include many of the well known adsorbents such as silica, alumina, silica-alumina, charcoal, carbon black, magnesium silicate, aluminium silicate, zeolites, clay, fuller's earth, magnesia and the like". In the examples, the adsorbent used is silica-gel. Interestingly, in Example IV it is stated that "carburretor deposit tests were run as in Example 1 with the same base fuel and with the addition of each of a primary and a secondary amine. Triplicate values of 11.6, 13.8 and 16.6 mg (Average = 14.0 mg) carburettor deposits are given for "Base fuel" and values of 32.0 mg and 14.6 mg respectively are given for "Base fuel + 0.05 vol% p-n-butylaniline" and "Base fuel + 0.05 vol% N-methylaniline". -
US Patent 5,951,851 relates to a process for removing elemental sulphur from fluids, particularly fuels such as gasoline, jet fuel, diesel, kerosene and fuel additives such as ethers. The process involves contacting the sulphur contaminated fluid with layered double hydroxide (or hydrotalcite) Mg2AlNO3; mH2O or Mg3Al NO3; mH2O, where m is the number of waters of hydration. In Example 1, it is shown that Attapulgus clay, molecular sieve 5 Angstrom, silica gel, alumina, bayerite, tetraphenylphosphonium-montmorillonite, Kao-EG. 9.4 Angstrom, Kao-tetraethylene glycol, Al13 pillared montmorillonite, tetramethylammonium-montmorillonite, palygorskite-PF1-s, Kaolinite KGa-1, Kao-cellosolve and Iron (III) montmorillonite are ineffective in removing elemental sulphur, whilst the hydrotalcites Al2LiCl, Mg2AlNO3, Mg2FeNO3, Mg3FeNO3 and Mg3AlNO3 are particularly effective in removing elemental sulphur. -
Japanese publication JP 2002 285179 A -
US Patent 2,094,554 relates to the manufacture of volatile liquid motor fuels, such as gasoline and kerosene, which are relatively stable as to color and anti-knock properties, and have little tendency to form gum, said fuels containing natural or self-generated inhibitors which substantially stabilize the fuel against deterioration. The fuels may be prepared by manufacturig operations which include any ordinary or preferred cracking process in which heavy oils are converted into low boiling products such as gasoline; reforming operations in which naphtha is transformed into a product of higher anti-knock value; treatments with adsorptive catalysts, such as fuller's earth; treating and refining processes involving chemical polymerization, such as those using aluminium chloride, zinc chloride or other metallic halides; digestion processes for the pressure polymerization of the more reactive unsaturated constituents; and, high temperature and pressure hydrogenation operations (column 2, lines 28 to 42). Classes of materials which may be used as inhibitors include phenols, creylic acids, tar acid oils from coal or wood, polyhydric phenols, aromatic mono- and polyamines (column 3, lines 45 to 48). -
US Patent 2,768,885 relates to the sweetening of cracked naphthas which contain objectionable amounts of mercaptans. More particularly,US Patent 2,768,885 relates to the sweetening of cracked naphthas by means of a supported cupric chloride catalyst. In this process a catalyst comprises essentially CuCl2, water and a carrier in the form of free flowing granules is dispersed into the sour naphtha until a substantially sweet naphtha has been obtained whereupon the sweet product naphtha is separated from the catalyst (column 1, lines 25 to 30). The carrier may be either an adsorbent material such as fuller's earth or acid treated clay or an essentially non-adsorbent material such as pumice or diatomaceous earth (column 1, lines 32 to 35). It is preferred to add to the sweet naphtha an effective amount of an oxidation inhibitor and a metal deactivator (column 1, lines 59 to 61), phenylene diamine-type inhibitors are disclosed at column 2, lines 47 to 65. - The New Encylopaedia Britannica, Macropaedia, Volume 4, 15th Edition, 1984, ISBN O-85229-413-1, Pages 700 to 706 classifies clay minerals on the basis of variations of atomic structure and chemical composition into 9 groups, viz (1) allophane, (2) kaolinite, (3) halloysite, (4) smectite, (5) illite, (6) chlorite, (7) vermiculite, (8) sepiolite, attapulgite and palygorskite and (9) mixed layer clay minerals.
- Group (8), sepiolite, attapulgite and palygorskite, are described as fibrous clay minerals, and these have, as an important structural element, the amphibole double silica chain which is oriented parallel to the c axis.
- It has now surprisingly been found that when a gasoline has been treated with a particular class of fibrous clay minerals, it can give surprising engine cleanliness when used together with a nitrogen-containing detergent.
- According to the present invention therefore there is provided a gasoline composition comprising a major amount of a gasoline suitable for use in a spark-ignition engine, which gasoline comprises a blend of at least two hydrocarbon refinery components boiling within the gasoline boiling range, at least one of which hydrocarbon refinery components has been treated with a fibrous clay mineral of the sepiolite, attapulgite and palygorskite groups, and a minor amount of a nitrogen-containing detergent containing a hydrocarbyl group having a number average molecular weight (Mn) in the range 750 to 6000.
- Preferably, the blend of at least two refinery components has been treated with the fibrous clay mineral.
- The nitrogen-containing detergent containing a hydrocarbyl group having a number average molecular weight (Mn) in the range 750 to 6000 may be an amine, e.g. a polyisobutylene mono-amine or polyamine, such as a polyisobutylene ethylene diamine, or N-polyisobutenyl-N',N'-dimethyl-1,3-diaminopropane, or amides, e.g. a polyisobutenyl succinimide, and are variously descsribed, for example, in
US Patent 5,855,629 andWO 0132812 - Preferably the nitrogen-containing detergent is a polyisobutylene monoamine or polyamine or a polyisobutenyl succinimide.
- A particularly preferred nitrogen-containing detergent is hydrocarbyl amine of formula R1-NH2 and R1 represents a group R2 or a group R2-CH2- and R2 represents a hydrocarbyl group having a number average molecular weight in the range 750 to 6000, preferably in the range 900 to 3000, more preferably 950 to 2000, and most preferably in the range 950 to 1350, e.g. a polybutenyl or polyisobutenyl group having a number average molecular weight in the range 950 to 1050.
- The nitrogen-containing detergents are known materials and may be prepared by known methods or by methods analogous to known methods. For4example,
US Patent 4,832,702 describes the preparation of polybutenyl and polyisobutenyl amines from an appropriate polybutene or polyisobutene by hydroformylation and subsequent amination of the resulting oxo product under hydrogenating conditions. - Suitable hydrocarbyl amines are obtainable from BASF A.G., under the trade mark "Kerocom".
- The nitrogen-containing detergent may be present in a wide range of concentrations, but is preferably present at a concentration in the range 25 to 2500 ppmw, based on total composition, more preferably 50 to 1000 ppmw, conveniently 50 to 500 ppmw and advantageously 50 to 250 ppmw.
- Number average molecular weights, e.g. of hydrocarbons such as polyalkenes, may be determined by several techniques which give closely similar results. Conveniently Mn may be determined by vapour phase osmometry (VPO) (ASTM D 3592) or by modern gel permeation chromatography (GPC), e.g. as described for example in W.W. Yau, J.J. Kirkland and D.D. Bly, "Modern Size Exclusion Liquid Chromatography", John Wiley and Sons, New York, 1979. Where the formula of a compound is known, the number average molecular weight can be calculated as its formula weight.
- Typical of gasolines suitable for use in spark ignition engines are mixtures of hydrocarbons having boiling points in the range from 25°C to 232°C and comprising mixtures of saturated hydrocarbons, olefinic hydrocarbons and aromatic hydrocarbons. Preferred are gasoline blends having a saturated hydrocarbon content ranging from 40 to 80 per cent volume, an olefinic hydrocarbon content ranging from 0 to 30 per cent volume and an aromatic hydrocarbon content ranging from 10 to 60 per cent volume. The gasoline can be derived from straight run gasoline, polymer gasoline, natural gasoline, dimer- or trimerised olefins, synthetically produced aromatic hydrocarbon mixtures from thermally or catalytically reformed hydrocarbons, or from catalytically cracked or thermally cracked petroleum stocks, or mixtures thereof. The hydrocarbon composition and octane level of the gasoline are not critical. The octane level, (R+M)/2, will generally be above 85. Any conventional gasoline can be used.
- In the gasoline composition, hydrocarbons can be supplemented by up to substantial amounts of conventional alcohols or ethers conventionally known for use in gasoline.
- The gasoline composition is preferably lead-free, and this may be required by law. Where permitted, lead-free anti-knock compounds and/or valve-seat recession protectant compounds (e.g. known potassium salts, sodium salts or phosphorous compounds) may be present.
- Modern gasolines are inherently low-sulphur fuels, e.g. containing less than 200 ppmw sulphur.
- The gasoline composition may additionally contain one or more corrosion inhibitors, anti-oxidants, dyes, dehazers, metal deactivators, detergents other than a nitrogen-containing detergent containing a hydrocarbyl group having a number average molecular weight (Mn) in the range 750 to 6000 (e.g. a polyether amine), synthetic or mineral oil carriers e.g. a polyalphaolefin or a polyoxyalkylene compound, friction modifiers, diluents and markers.
- The present invention further provides a process for the preparation of a gasoline composition of the invention, which comprises treating at least one hydrocarbon refinery component boiling within the gasoline boiling range with a fibrous clay mineral of the sepiolite, attapulgite and palygorskite groups, before or after blending said at least one hydrocarbon refinery component with at least one other hydrocarbon refinery component boiling within the gasoline boiling range, to form a gasoline suitable for use in a spark-ignition engine, and bringing the gasoline suitable for use in spark-ignition engine into admixture with the nitrogen-containing detergent.
- In the process of the invention the treatment with fibrous clay mineral is effected with the hydrocarbons in the liquid phase, very conveniently at ambient temperature. At ambient temperature, the treatment may very conveniently be effected at atmospheric pressure.
- Whilst when it is known that a particular hydrocarbon refinery component or combination/components of a gasoline is at least predominantly responsible for deposit formation when used as fuel in a spark-ignition engine, that component or combination of components may be treated with the fibrous clay mineral before blending with at least the other hydrocarbon refinery component to form the gasoline, it is preferred to treat the fully pre-blended gasoline.
- Accordingly, the process of the invention preferably comprises blending at least two hydrocarbon refinery components boiling within the gasoline boiling range and treating the resulting mixture with a fibrous clay mineral of the sepiolite, attapulgite and palygorskite groups, to form a gasoline suitable for use in a spark-ignition engine, and bringing the gasoline into admixture with the nitrogen-containing detergent.
- The fibrous clay mineral of the sepiolite, attapulgite and palygorskite, groups must at least contain at least one mineral of the sepiolite, attapulgite and palygorskite groups. The term "fullers earth" is used in published literature on clays in a number of different ways, but in the context of the present invention "fullers earth" comprises at least one fibrous clay mineral of the sepiolite, attapulgite and palygorskite groups. One type of fullers earth may comprise a mixture of montmorillonite and palygorskite.
- Preferably the fibrous clay mineral is sepiolite, attapulgite or fullers earth, as will be illustrated in the examples which follow this description.
- The mechanism by which the process of the invention is effective is not fully understood, but it is believed that the fibrous clay mineral may remove iron and/or copper ions from iron and/or copper compounds which may contaminate hydrocarbon refinery components. Those skilled in the art will understand that if spent clay contains iron and/or copper, whilst containing negligible organic contaminants, it may be susceptible for disposal as land fill, without prior incineration.
- The present invention further provides a method of operating a spark-ignition engine, which comprises bringing into the combustion chambers of such engine a gasoline composition according to the invention giving improved engine cleanliness, e.g. reduced intake valve deposits.
- The invention will be further understood from the following illustrative examples, in which, unless otherwise indicated, parts and percentages are by weight, and temperatures are in degrees Celsius.
- Base fuel blends were prepared from 50%v of an unleaded gasoline (95 ULG) of RON 95.7, MON 84.6, and having sulphur content (ASTM D 2622-94) of 483 ppmw, saturated hydrocarbon content of 49.1% v/v, aromatics content of 29.6% v/v and olefins content of 21.3% v/v (ASTM D6623-01 (procedure C), density at 15°C (DIN 51757/V4) 735.1 kg/m3, distillation (ISO 3405/88) IBP 24°C, 10% 41°C, 50% 100°C, 90% 175°C and FBP 218°C and 50% v of a heavy catalytically cracked (HCC) gasoline (the higher boiling fraction of a refinery stream produced by catalytic cracking of heavier hydrocarbons), by mixing at ambient temperature (20°C). The HCC gasoline had distillation (ISO 3405/88) IBP 65.6°C, 10% 79.3°C, 50% 94.3°C, 90% 124°C and FBP 153.3°C, sulphur content (ASTM D 2622-94) 520 ppmw, RON 91.8 and MON 79.7.
- The resulting base fuel blends had properties as follows:- density at 15°C (DIN 51757/V4) 746.6 kg/m3, distillation (ISO 3405/88) IBP 40°C, 10% 68°C, 50% 98.5°C, 90% 145°C, FBP 195.5°C, RON 93.2, and MON 81.
- Glass columns of about 1 metre in height and diameter of 7.5 cm, having a tap at the bottom and a loose glass cap on top, were fitted with a glass wool layer immediately above the tap and were then loaded with 0.5 kg of dry clay, in powder form. The clay filled the column to about 40 cm above the tap, and the glass wool layer prevented clay from falling into the tap.
- Base fuel at ambient temperature (20°C) was poured into the column, to a depth of 25 to 30 cm above the clay. Flow rate was adjusted to 1 litre/hour, and the column was regularly topped up with fuel. Total volume of 50 litres was passed through each column. The first litre of permeate was discarded, and subsequently 5 litre samples were collected. The 2nd,4th, 6th, 8th and final samples were tested for Fe and Cu content. The final samples were also subjected to testing in an intake valve deposit simulator test, using a multiple inclined hot plate (MIHPT) rig, in comparison both with untreated base fuel and with portions of both untreated base fuel and of final samples into which were incorporated (by mixing at ambient temperature (20°C)) a standard detergent additive package ("DP"), at a concentration of 380 ppmw.
- Details of the additive package are as follows:-
- "DP" -
- this was a standard commercial gasoline additive package, containing a polyisobutyleneamine detergent, a synthetic carrier oil and a conventional corrosion inhibitor, corresponding closely to additive package PI of Example 3 of
DE-A-19955651 . The polyisobutyleneamine detergent was a polyisobutylene monoamine (PIBA) ex BASF, in which the polyisobutylene (PIB) chain has a number average molecular weight of approximately 1000. The synthetic carrier oil was a polyether carrier being a polyoxypropylene glycol hemiether, containing 50 to 30 propylene oxide units prepared using a mixture of alkanols in the C5-15 range as initiators, and having Mn in the range 1000 to 2000. The additive package contained about 68% of non-volatile matter, about 27 %w of the package being the PIBA and 40 %w of the package being carrier fluid. - The clays which were employed were as follows:-
Example 1 : Attapulgite 30-60, ex Wilfrid Smith Limited (manufactured by Millwhite) Example 2 : Fullers Earth 30-60, ex Aldrich Example 3 : Sepiolite, ex Steetly Bentonite & Absorbents Ltd. Comparative A : Talc, ex Aldrich Comparative B : Kaolin, ex Aldrich Comparative C : Vermiculite, ex Aldrich Comparative D : Calcined Kaolin 22-60, ex Imerys. Comparative E : Bentonite, ex Wilfrid Smith Limited (Manufactured by Cymbar) Comparative F : Diatomaceous earth, ex Steetley Bentonite & Absorbents Ltd. - This simulator test corresponds closely to that described in SAE Paper 890215, Daneshgari et al., "The Influence of Temperature upon Gasoline Deposit guild-up on the Intake Valves", Detroit, USA, 27 February to 3 March 1989. The test rig utilises four inclined plates in parallel. The plates are strips of sandblasted aluminium 50 cm long and 2.5 cm wide, having a central groove along their lengths 3 mm wide and 1 mm deep, mounted in the rig at an angle of 3 degrees relative to the horizontal. The temperature at the top end of each plate is maintained at 400°C and at the middle of each plate is maintained at 250°C.
- Gasoline samples, containing test materials at a concentration of non-volatile matter of 100 parts per million by weight (ppmw) in base fuel, are prepared, and 100 ml portions of the gasoline samples are delivered at a rate of 0.6 ml/minute from glass syringes fitted with 20 gauge steel hypodermic Luer lock needles into the groove at the top end of each plate. Once delivery is complete, after about 2 hours and 40 minutes, the plates are allowed to cool to ambient temperature (20°C) and are washed with n-heptane until the run-off liquid is clear, and are then left to dry before assessment of any deposit present.
- Assessment is made using a "SEESCAN" (trade mark) Marker Image analyser with 512*512 image memory coupled to a "SONY"/"SEESCAN" (trade marks) CCD camera equipped with NIKON (trade mark) f55 Macro lens. Lighting of the plate being assessed is by two 12v Tungsten lamps mounted at a linear distance of 22 cm from the point on the plate upon which the camera is focused and at angles of 33 degrees and 147 degrees relative to the plate.
- A clear portion of the plate is moved under the camera and an image thereof captured. The section of the plate containing deposit is then moved beneath the camera and an image thereof is captured. The image analyser divides, pixel by corresponding pixel, the deposit image by the clean image and automatically measures the area and optical density of deposit at the pixels contained within overall measuring frame, and calculates an integrated optical density for the image, the numerical value of which is recorded as a test rating.
- Results of this test are given in Table 1 as follows:-
Table 1 Example MIHPT Rating Fuel without additive Fuel with additive package Base fuel blend 508# 567# 1 287 185 1a 360* 211* 2 244 115 3 116 84 Comparative A 454 624 Comparative B 493 ND Comparative C 489 578 Comparative D 646 514 Comparative E 234 691 Comparative F 242 417 # average of 7 runs
ND not done
* in processing, flow rate through column was 2 l/hour, instead of 1 l/hour - In Table 1, the lower the rating, the better. Accordingly, it can readily be seen that the results for all of the test materials of Examples 1 to 3 are surprisingly superior both to the results for the comparative examples and for the base fuel. In particular, it should be noted that for fuels of Examples 1 to 3, fuel with additive package performs better than fuel without additive package, whereas the reverse is true for the base fuel blend and for the comparative examples. Even in the case of Comparative Examples E and F, where treated fuel without additive package is significantly better in test than untreated base fuel without additive package, the ratings for treated fuel with additive package are poor, in addition to being worse than for the fuel without additive package.
Claims (10)
- A gasoline composition comprising a major amount of a gasoline suitable for use in a spark-ignition engine, which gasoline comprises a blend of at least two hydrocarbon refinery components boiling within the gasoline boiling range, at least one of which hydrocarbon refinery components has been treated with a fibrous clay mineral of the sepiolite, attapulgite and palygorskite groups, and a minor amount of a nitrogen-containing detergent containing a hydrocarbyl group having a number average molecular weight (Mn) in the range 750 to 6000.
- A gasoline composition according to Claim 1 wherein the blend of at least two hydrocarbon refinery components has been treated with the fibrous clay mineral.
- A gasoline composition according to Claim 1 or 2 wherein the nitrogen-containing detergent is a polyisobutylene monoamine or polyamine or a polyisobutenyl succinimide.
- A gasoline composition according to any one of Claims 1 to 3 wherein the nitrogen-containing detergent is a hydrocarbyl amine of formula R1-NH2 wherein R1 represents a group R2 or a group R2-CH2- and R2 represents a hydrocarbyl group having a number average molecular weight in the range of 900 to 3000.
- A gasoline composition according to Claims 4 wherein R2 represents a hydrocarbyl group having a number average molecular weight in the range 950 to 1350.
- A gasoline composition according to any one of Claims 1 to 5 wherein the nitrogen-containing detergent is present in an amount in the range 25 to 2500 ppmw, based on total composition.
- A process for the preparation of a gasoline composition according to any one of Claims 1 to 6 which comprises treating at least one hydrocarbon refinery component boiling within the gasoline boiling range with a fibrous clay mineral of the sepiolite, attapulgite and palygorskite groups, before or after blending said at least one hydrocarbon refinery component with at least one other hydrocarbon refinery component boiling within the gasoline boiling range, to form a gasoline suitable for use in a spark-ignition engine, and bringing the gasoline suitable for use in spark-ignition engine into admixture with the nitrogen-containing detergent.
- A process according to Claim 7 which comprises blending at least two hydrocarbon refinery components boiling within the gasoline boiling range and treating the resulting mixture with a fibrous clay mineral of the sepiolite, attapulgite and palygorskite groups, to form a gasoline suitable for use in a spark-ignition engine, and bringing the gasoline into admixture with the nitrogen-containing detergent.
- A process according to Claim 7 or Claim 8 wherein the fibrous clay mineral is sepiolite, attapulgite or a fullers earth which comprises at least one fibrous clay mineral of the sepiolite, attapulgite and palygorskite groups.
- A method of operating a spark-ignition internal combustion engine, which comprises bringing into the combustion chambers of such engine a gasoline composition according to any one of Claims 1 to 6.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP04106249A EP1538192B1 (en) | 2003-12-04 | 2004-12-02 | Gasoline compositions |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP03257639 | 2003-12-04 | ||
EP32576399 | 2003-12-04 | ||
EP04106249A EP1538192B1 (en) | 2003-12-04 | 2004-12-02 | Gasoline compositions |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1538192A1 EP1538192A1 (en) | 2005-06-08 |
EP1538192B1 true EP1538192B1 (en) | 2007-11-21 |
Family
ID=34895947
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP04106249A Not-in-force EP1538192B1 (en) | 2003-12-04 | 2004-12-02 | Gasoline compositions |
Country Status (3)
Country | Link |
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EP (1) | EP1538192B1 (en) |
BR (1) | BRPI0405407A (en) |
DE (1) | DE602004010223D1 (en) |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2094554A (en) * | 1934-11-08 | 1937-09-28 | Texas Co | Manufacture of motor fuels |
US2768885A (en) * | 1953-08-27 | 1956-10-30 | Standard Oil Co | Copper sweetening of cracked naphthas and stabilizing the sweetened naphtha with an amine |
BE573997A (en) * | 1957-12-20 | |||
JP3745973B2 (en) * | 2001-03-23 | 2006-02-15 | タイホー工業株式会社 | Coal additive for preventing slagging and coal combustion method |
-
2004
- 2004-12-02 BR BRPI0405407 patent/BRPI0405407A/en not_active Application Discontinuation
- 2004-12-02 DE DE200460010223 patent/DE602004010223D1/en active Active
- 2004-12-02 EP EP04106249A patent/EP1538192B1/en not_active Not-in-force
Non-Patent Citations (1)
Title |
---|
PHILIP BABCOCK GOVE: "WEBSTER'S THIRD NEW INTERNATIONAL DICTIONARY", 1961, G.BELL & SONS, LTD., LONDON * |
Also Published As
Publication number | Publication date |
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BRPI0405407A (en) | 2005-08-30 |
EP1538192A1 (en) | 2005-06-08 |
DE602004010223D1 (en) | 2008-01-03 |
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