WO1991012302A1 - Combustible a essence pour moteurs a combustion interne - Google Patents

Combustible a essence pour moteurs a combustion interne Download PDF

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Publication number
WO1991012302A1
WO1991012302A1 PCT/EP1991/000281 EP9100281W WO9112302A1 WO 1991012302 A1 WO1991012302 A1 WO 1991012302A1 EP 9100281 W EP9100281 W EP 9100281W WO 9112302 A1 WO9112302 A1 WO 9112302A1
Authority
WO
WIPO (PCT)
Prior art keywords
additive
polyolefine
weight
polyamine
ppm
Prior art date
Application number
PCT/EP1991/000281
Other languages
English (en)
Inventor
Dirk Block
Original Assignee
Exxon Chemical Patents Inc.
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Exxon Chemical Patents Inc. filed Critical Exxon Chemical Patents Inc.
Priority to DE69119065T priority Critical patent/DE69119065D1/de
Priority to EP91903663A priority patent/EP0514433B1/fr
Priority to KR1019920701909A priority patent/KR927003767A/ko
Publication of WO1991012302A1 publication Critical patent/WO1991012302A1/fr

Links

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
    • C10L1/10—Liquid carbonaceous fuels containing additives
    • C10L1/14—Organic compounds
    • C10L1/143—Organic compounds mixtures of organic macromolecular compounds with organic non-macromolecular compounds
    • 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
    • C10L10/00—Use of additives to fuels or fires for particular purposes
    • C10L10/04—Use of additives to fuels or fires for particular purposes for minimising corrosion or incrustation
    • 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
    • C10L1/16—Hydrocarbons
    • C10L1/1608—Well defined compounds, e.g. hexane, benzene
    • 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
    • C10L1/16—Hydrocarbons
    • C10L1/1616—Hydrocarbons fractions, e.g. lubricants, solvents, naphta, bitumen, tars, terpentine
    • 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
    • C10L1/18—Organic compounds containing oxygen
    • C10L1/182—Organic compounds containing oxygen containing hydroxy groups; Salts thereof
    • C10L1/1822—Organic compounds containing oxygen containing hydroxy groups; Salts thereof hydroxy group directly attached to (cyclo)aliphatic carbon atoms
    • C10L1/1824—Organic compounds containing oxygen containing hydroxy groups; Salts thereof hydroxy group directly attached to (cyclo)aliphatic carbon atoms mono-hydroxy
    • 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
    • C10L1/18—Organic compounds containing oxygen
    • C10L1/19—Esters ester radical containing compounds; ester ethers; carbonic acid esters
    • C10L1/1905—Esters ester radical containing compounds; ester ethers; carbonic acid esters of di- or polycarboxylic acids
    • 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
    • C10L1/222—Organic compounds containing nitrogen containing at least one carbon-to-nitrogen single bond
    • C10L1/2222—(cyclo)aliphatic amines; polyamines (no macromolecular substituent 30C); quaternair ammonium compounds; carbamates
    • 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
    • C10L1/222—Organic compounds containing nitrogen containing at least one carbon-to-nitrogen single bond
    • C10L1/224—Amides; Imides carboxylic acid amides, imides
    • 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 the use of additives in gasoline fuels for internal combustion engines.
  • crank chamber of the engine is vented by recycling the blow-by gas to the suction point of the carburettor or to its air filter.
  • a portion of the oil mist formed in the crank chamber passes through the carburettor to the engine, where it is largely destroyed by combustion.
  • portions of the oil mists become deposited on the inner surfaces of the carburettor.
  • carburettors are complicated structures containing very fine channels and bores and precisely calibrated nozzles for atomizing and metering the petrol. The occurence of even small amounts of residues in these fine control members, nozzles and channels in the carburettor greatly impairs the efficiency of the latter, as a result of which the
  • proportions of the components in the fuel/air mixture are changed undesirably so that the combustion of the fuel in the engine is not as complete as when the carburettor is clean.
  • the exhaust gases consequently contain unburnt and partially burnt hydrocarbon residues.
  • there is an undesirable shift of the ratio of carbon monoxide to carbon dioxide in the exhaust gases i.e. the proportion of carbon monoxide is raised when the carburettor is fouled.
  • GB-A-1 410 788 describe using various amine derivitives of carboxylic acids and the following patent specifications describe using aminated polyolefins such as aminated polyisobutylene: GB-A-1 346 765; US-A-3 438 757;
  • GB-A-1 346 765 describes use of a polyamine together with a substance which does not consist of mineral oil constituents, but states that mineral oil constituents having a viscosity of from 20 to 2500 cS at 20oC may additionally be present.
  • US-A-4 022 589 describes use of a polybutene amine together with a paraffinic hydrocarbon oil having a viscosity at 100°F between 250 and 500 SUS.
  • the present invention is concerned with the use, in
  • One aspect of the invention is the use of an additive in a gasoline petroleum fuel to reduce the tendency of deposits to form within a spark ignition internal combustion engine in use of the fuel in said engine, the additive comprising an oil soluble polyolefine polyamine, the polyolefine having a number average molecular weight of greater than 500, and a hydrocarbon oil in the form of a mineral oil having a viscosity in the range of 200 to 1000 cSt at 40°C.
  • a second aspect of the invention is a composition comprising a mixture of a major proportion of a gasoline petroleum fuel and a minor amount of an additive as defined above.
  • a third aspect of the invention is a liquid concentrate for use in a gasoline petroleum fuel comprising an additive as defined above in solution in a solvent therefor.
  • a fourth aspect of the invention is a method for reducing the tendency of deposits to form within a spark ignition internal combustion engine comprising using therein a gasoline petroleum fuel containing an additive as defined above.
  • the invention is surprisingly effective in reducing the
  • deposits to form within a spark ignition engine said deposits being such as tend to form on, for example, the intake system such as inlet valves, fuel injectors,
  • the polyolefine polyamine contains at least one olefinic polymer chain attached to nitrogen or carbon atoms of the alkylene radicals connecting the amine nitrogen atoms or both.
  • the polyamine may have the general
  • R 1 is hydrogen or polyolefin provided that at least one R 1 is polyolefin
  • R 2 is alkylene having from 1 to 8 carbon atoms
  • R 3 is hydrogen or alkyl having from 1 to 6 carbon atoms
  • x is from 0 to 5
  • R 1 , R 2 and R 3 being each independently branched or
  • R 1 may, for example, be polyethylene, polypropylene,
  • polystyrene polystyrene
  • polystyrene polystyrene
  • polystyrene polystyrene
  • polystyrene polystyrene
  • polystyrene polystyrene
  • polystyrene polystyrene
  • polystyrene polystyrene
  • polystyrene polystyrene
  • polystylene polystylene, polystylene, polyethylene/polypropylene, or polyethylene/poly alpha-methyl styrene.
  • polyisobutylene is particularly preferred.
  • the polyolefine polyamine may be made by reacting an olefinic polymer such as exemplified above in respect of R 1 with a polyamine.
  • Such polyamines may have, for example, from 2 to 12 nitrogen atoms and from 2 to 40 carbon atoms. They may be derived, for example, from polyalkylene poly
  • the alkylene has 2 to 6 carbon atoms, more
  • polyamines are primary and secondary low molecular weight aliphatic polyamines such as ethylene diamine, diethylene triamine, triethylene tetramine, propylene diamine, butylene diamine, trimethyl trimethylene diamine, tetramethylene diamine, diaminopentane or pentamethylene diamine, hexamethylene diamine, heptamethy1ene diamine,
  • primary and secondary low molecular weight aliphatic polyamines such as ethylene diamine, diethylene triamine, triethylene tetramine, propylene diamine, butylene diamine, trimethyl trimethylene diamine, tetramethylene diamine, diaminopentane or pentamethylene diamine, hexamethylene diamine, heptamethy1ene diamine,
  • diaminooctane decamethylene diamine, and higher homologues up to 18 carbon atoms.
  • Ethylene diamine is preferred.
  • the number average molecular weight of the polyolefine of the polyolefine polyamine is as measured by vapour phase
  • osmometry Preferably it is 900 or greater, more preferably in the range of from 1000 to 5000, and most preferably in the range of from 1200 to 2500.
  • the polyolefine polyamine may be made by methods described in the art such as halogenating a polyolefine and reacting the resulting halide with a polyamine. See, for example,
  • Mineral Oil includes all components or mixtures of components which are obtained in refining naturally occuring petroleum oils such as distillates, residues and products obtained in conversion processes. It comprises one or more hydrocarbons.
  • the mineral oil is an oil obtained from residues of petroleum distillation such as a lubricating oil of high viscosity.
  • the viscosity of the mineral oil is in the range of 400 to 800 centistokes (cSt) at 40°C.
  • the additive contains from 0.2 to 3 parts by weight, more preferably from 0.5 to 1.1, of polyolefine
  • the weight of additive based on the weight of the gasoline
  • petroleum fuel is preferably in the range of 20 to 2,000 ppm, more preferably in the range from 50 to 500 ppm.
  • the solvent therefor may be, for example, a hydrocarbon or an oxygen-containing
  • hydrocarbon examples are alkanes or aromatic hydrocarbons such as benzene and xylene. Examples of
  • oxygen-containing hydrocarbons are a butanol, a pentanol, and a hexanol.
  • concentration of the additive in the concentrate may be varied within wide limits according to needs and
  • additives may be used in combination with the additive of this invention in the practice of the invention.
  • examples are: di (fatty acid amides) of aliphatic polyamines such as the di(oleic acid amide) of diethylene triamine, the di(stearic acid amide) of dipropylene triamine, the di(palmitic acid
  • carboxylic acid derivatives of polyamines containing 1 to 6 nitrogen atoms per molecule such as palmitic, stearic, isostearic and undecanoic acid esters and tallow oil acid derivatives of polyamines of hydroxy amines, such as ethanolamines, isopropionolamines and polyamines such as tetraethylene pentamine.
  • additives which may be included are co-components such as plasticiser esters, for example adipates and mixtures thereof, antioxidants, scavengers, ignition improvers and metal deactivators.
  • co-components such as plasticiser esters, for example adipates and mixtures thereof, antioxidants, scavengers, ignition improvers and metal deactivators.
  • Such other additives may, for example, be present in the fuel in the range of 50 to 500 ppm
  • the fuels employed are compositions comprising hydrocarbons such as straight chain paraffins, branched chain paraffins, olefins, aromatic hydrocarbons, and naphthenic hydrocarbons. Examples are those with initial boiling points of about 70°F and final boiling points of about 450oF (ASTM D-86).
  • the fuel components can be derived by any of the conventional refining and blending processes. Synthetic fuels are also included.
  • the additive of the present invention can be added to the fuel as a mixture or separately in any order using conventional fuel additive injection methods.
  • the additive is added as a concentrate according to the third aspect of the
  • A a polyisobutylene polyamine prepared by aminating a
  • polyisobutylene of number average molecules weight of 1300 with ethylene diamine.
  • hydrocarbon oil comprising a mineral oil in the form of a lubricating oil of high viscosity obtained from residues of petroleum distillation and having the properties set out in Table I shown overleaf.
  • C a polyisobutylene polyamine prepared by aminating a polyisobutylene of number average molecular weight of 900 with ethylene diamine.
  • additives including D or E as components do not fall within the definition of additives in the present invention.
  • a gasoline fuel was treated with an additive composition and a test engine was run on the treated fuel under conditions simulating the driving patterns of the police or sales
  • a PASS was recorded when the additive composition comprised 228 ppm of A, 200 ppm of B and 152 ppm of diisodecyl adipate.
  • the concentration of B was regarded as representing a minimum for passing the valve sticking test.
  • a borderline PASS was recorded when the additive composition comprised 200 ppm of A and 400 ppm of E.
  • a PASS was recorded when the additive composition comprised 300 ppm of C, 200 ppm of B and 500 ppm of diisodecyl adipate.
  • the concentration of B was regarded as a minimum for passing the valve sticking test.
  • a FAIL was recorded when the additive composition comprised 300 ppm of C and 500 ppm of E.
  • a PASS was recorded when the additive composition comprised 230 ppm of A and 230 ppm of B.
  • a FAIL was recorded when the additive composition comprised 300 ppm of C and 300 ppm of D.
  • a PASS was recorded when the additive composition comprised 300 ppm of C, 300 ppm of B and 200 ppm of diisodecyl adipate.
  • esters were not considered to have any significant effect.
  • the test engine was a General Motors 1.6L engine and in
  • the test is carried out over 100 hours under variable conditions.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)
  • Lubricants (AREA)
  • Liquid Carbonaceous Fuels (AREA)
  • Lift Valve (AREA)
  • Sliding Valves (AREA)
  • Magnetically Actuated Valves (AREA)
  • Output Control And Ontrol Of Special Type Engine (AREA)

Abstract

Un détergent à essence destiné à réduire la formation de dépôts dans un moteur à combustion à allumage par étincelle comprend un mélange d'une polyamine polyoléfinique, le poids moléculaire moyen de la polyoléfine étant supérieur à 1000, et une huile d'hydrocarbure sous forme d'huile minérale possédant une viscosité dans une plage allant de 200 jusqu'à 1000 cSt à 40 °C.
PCT/EP1991/000281 1990-02-09 1991-02-07 Combustible a essence pour moteurs a combustion interne WO1991012302A1 (fr)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE69119065T DE69119065D1 (de) 1990-02-09 1991-02-07 Verwendung von Additiv um das Ventilkleben zu verringern
EP91903663A EP0514433B1 (fr) 1990-02-09 1991-02-07 Utilisation d'un additive pour reduire l'adhésion de soupape
KR1019920701909A KR927003767A (ko) 1990-02-09 1991-02-07 내연기관용 개솔린 연료

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB9003023.0 1990-02-09
GB909003023A GB9003023D0 (en) 1990-02-09 1990-02-09 Gasoline fuel for internal combustion engines

Publications (1)

Publication Number Publication Date
WO1991012302A1 true WO1991012302A1 (fr) 1991-08-22

Family

ID=10670768

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP1991/000281 WO1991012302A1 (fr) 1990-02-09 1991-02-07 Combustible a essence pour moteurs a combustion interne

Country Status (8)

Country Link
EP (1) EP0514433B1 (fr)
JP (1) JPH05504985A (fr)
KR (1) KR927003767A (fr)
AT (1) ATE137258T1 (fr)
CA (1) CA2075492A1 (fr)
DE (1) DE69119065D1 (fr)
GB (1) GB9003023D0 (fr)
WO (1) WO1991012302A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0460957A2 (fr) * 1990-06-07 1991-12-11 Tonen Corporation Composition d'additifs pour essence
US5752990A (en) * 1996-03-29 1998-05-19 Exxon Research And Engineering Company Composition and method for reducing combustion chamber deposits, intake valve deposits or both in spark ignition internal combustion engines
EP1295933A2 (fr) * 2001-09-14 2003-03-26 Ethyl Corporation Aditifs de contrôle de dépot pour moteurs à essence à injection directe
KR100670617B1 (ko) 2003-09-25 2007-01-17 에프톤 케미칼 코포레이션 연료 조성물 및 이의 사용 방법

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3438757A (en) * 1965-08-23 1969-04-15 Chevron Res Hydrocarbyl amines for fuel detergents
US4039300A (en) * 1974-06-03 1977-08-02 Atlantic Richfield Company Gasoline fuel composition and method of using
US4155718A (en) * 1978-03-27 1979-05-22 Shell Oil Company Method and composition for inhibition or prevention of octane requirement increase
WO1990010051A1 (fr) * 1989-02-21 1990-09-07 Union Oil Company Of California Composition de carburant permettant la regulation de depots sur des soupapes d'admission

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3438757A (en) * 1965-08-23 1969-04-15 Chevron Res Hydrocarbyl amines for fuel detergents
US4039300A (en) * 1974-06-03 1977-08-02 Atlantic Richfield Company Gasoline fuel composition and method of using
US4155718A (en) * 1978-03-27 1979-05-22 Shell Oil Company Method and composition for inhibition or prevention of octane requirement increase
WO1990010051A1 (fr) * 1989-02-21 1990-09-07 Union Oil Company Of California Composition de carburant permettant la regulation de depots sur des soupapes d'admission

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0460957A2 (fr) * 1990-06-07 1991-12-11 Tonen Corporation Composition d'additifs pour essence
EP0460957A3 (en) * 1990-06-07 1992-05-06 Tonen Corporation Gasoline additive composition
US5242469A (en) * 1990-06-07 1993-09-07 Tonen Corporation Gasoline additive composition
EP0654524A2 (fr) * 1990-06-07 1995-05-24 Tonen Corporation Composition additive pour essence
EP0654524A3 (fr) * 1990-06-07 1995-10-11 Tonen Corp Composition additive pour essence.
US5752990A (en) * 1996-03-29 1998-05-19 Exxon Research And Engineering Company Composition and method for reducing combustion chamber deposits, intake valve deposits or both in spark ignition internal combustion engines
EP1295933A2 (fr) * 2001-09-14 2003-03-26 Ethyl Corporation Aditifs de contrôle de dépot pour moteurs à essence à injection directe
EP1295933A3 (fr) * 2001-09-14 2004-02-04 Ethyl Corporation Aditifs de contrôle de dépot pour moteurs à essence à injection directe
CN1308421C (zh) * 2001-09-14 2007-04-04 乙基公司 用于直接喷射汽油发动机的沉积控制添加剂
KR100670617B1 (ko) 2003-09-25 2007-01-17 에프톤 케미칼 코포레이션 연료 조성물 및 이의 사용 방법
KR100749715B1 (ko) * 2003-09-25 2007-08-16 에프톤 케미칼 코포레이션 연료 조성물 및 이의 사용 방법

Also Published As

Publication number Publication date
EP0514433A1 (fr) 1992-11-25
ATE137258T1 (de) 1996-05-15
GB9003023D0 (en) 1990-04-04
CA2075492A1 (fr) 1991-08-10
JPH05504985A (ja) 1993-07-29
EP0514433B1 (fr) 1996-04-24
DE69119065D1 (de) 1996-05-30
KR927003767A (ko) 1992-12-18

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