MY208247A - Aryloxy alkylamines as fuel additives for reducing injector fouling in direct injection spark ignition gasoline engines - Google Patents

Aryloxy alkylamines as fuel additives for reducing injector fouling in direct injection spark ignition gasoline engines

Info

Publication number
MY208247A
MY208247A MYPI2023001389A MYPI2023001389A MY208247A MY 208247 A MY208247 A MY 208247A MY PI2023001389 A MYPI2023001389 A MY PI2023001389A MY PI2023001389 A MYPI2023001389 A MY PI2023001389A MY 208247 A MY208247 A MY 208247A
Authority
MY
Malaysia
Prior art keywords
direct injection
spark ignition
gasoline engines
fuel additives
injection spark
Prior art date
Application number
MYPI2023001389A
Other languages
English (en)
Inventor
Eugene Cherpeck Richard
Kit Ng Man
A Fuentes-Afflick Peter
M Ickes Andrew
Y Chan Carrie
Mendenhall Kris
Wang Justin
Original Assignee
Chevron Usa Inc
Chevron Oronite Co
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 Chevron Usa Inc, Chevron Oronite Co filed Critical Chevron Usa Inc
Publication of MY208247A publication Critical patent/MY208247A/en

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 OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
    • 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 OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
    • 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
    • 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 OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
    • C10L10/00—Use of additives to fuels or fires for particular purposes
    • C10L10/02—Use of additives to fuels or fires for particular purposes for reducing smoke development
    • 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 OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
    • 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 OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
    • 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
    • C10L1/223—Organic compounds containing nitrogen containing at least one carbon-to-nitrogen single bond having at least one amino group bound to an aromatic carbon atom
    • 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 OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
    • 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 OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
    • C10L1/00—Liquid carbonaceous fuels
    • C10L1/10—Liquid carbonaceous fuels containing additives
    • C10L1/14—Organic compounds
    • C10L1/22—Organic compounds containing nitrogen
    • C10L1/23—Organic compounds containing nitrogen containing at least one nitrogen-to-oxygen bond, e.g. nitro-compounds, nitrates, nitrites
    • C10L1/231—Organic compounds containing nitrogen containing at least one nitrogen-to-oxygen bond, e.g. nitro-compounds, nitrates, nitrites nitro compounds; nitrates; nitrites
    • 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 OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
    • 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)
    • 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 OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
    • 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)
    • C10L1/2387—Polyoxyalkyleneamines (poly)oxyalkylene amines and derivatives thereof (substituted by a macromolecular group containing 30C)
    • 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 OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
    • C10L2200/00—Components of fuel compositions
    • C10L2200/04—Organic compounds
    • C10L2200/0407—Specifically defined hydrocarbon fractions as obtained from, e.g. a distillation column
    • C10L2200/0415—Light distillates, e.g. LPG, naphtha
    • C10L2200/0423—Gasoline
    • 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 OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
    • C10L2230/00—Function and purpose of a components of a fuel or the composition as a whole
    • C10L2230/08—Inhibitors
    • 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 OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
    • C10L2270/00—Specifically adapted fuels
    • C10L2270/02—Specifically adapted fuels for internal combustion engines
    • C10L2270/023—Specifically adapted fuels for internal combustion engines for gasoline engines

Landscapes

  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Combustion & Propulsion (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Solid Fuels And Fuel-Associated Substances (AREA)
  • Fuel-Injection Apparatus (AREA)
  • Liquid Carbonaceous Fuels (AREA)
MYPI2023001389A 2020-09-17 2021-09-15 Aryloxy alkylamines as fuel additives for reducing injector fouling in direct injection spark ignition gasoline engines MY208247A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US202063079609P 2020-09-17 2020-09-17
PCT/IB2021/058387 WO2022058894A1 (en) 2020-09-17 2021-09-15 Aryloxy alkylamines as fuel additives for reducing injector fouling in direct injection spark ignition gasoline engines

Publications (1)

Publication Number Publication Date
MY208247A true MY208247A (en) 2025-04-29

Family

ID=77897677

Family Applications (1)

Application Number Title Priority Date Filing Date
MYPI2023001389A MY208247A (en) 2020-09-17 2021-09-15 Aryloxy alkylamines as fuel additives for reducing injector fouling in direct injection spark ignition gasoline engines

Country Status (11)

Country Link
US (1) US20240026239A1 (https=)
EP (1) EP4214297B1 (https=)
JP (2) JP2023541471A (https=)
KR (1) KR102916332B1 (https=)
CN (1) CN116234891B (https=)
AU (2) AU2021342779A1 (https=)
CA (1) CA3195345A1 (https=)
CO (1) CO2023004450A2 (https=)
MX (1) MX2023003074A (https=)
MY (1) MY208247A (https=)
WO (1) WO2022058894A1 (https=)

Family Cites Families (49)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US566939A (en) * 1896-09-01 eoney
US2622018A (en) 1949-10-19 1952-12-16 Socony Vacuum Oil Co Inc Motor fuel
US3574576A (en) 1965-08-23 1971-04-13 Chevron Res Distillate fuel compositions having a hydrocarbon substituted alkylene polyamine
DE1643240A1 (de) 1966-09-16 1971-06-24 Boehringer Sohn Ingelheim Verfahren zur Herstellung neuer racemischer oder optisch aktiver 1-Phenoxy-2-aminoalkane
GB1346765A (en) 1970-06-16 1974-02-13 Shell Int Research Fuel compositions
US3849083A (en) * 1972-04-14 1974-11-19 Ethyl Corp Gasoline additive
US3848056A (en) 1972-09-05 1974-11-12 Continental Oil Co Molten alkaline alkanoic mixtures for absorption of sulfur oxides
US4231759A (en) 1973-03-12 1980-11-04 Standard Oil Company (Indiana) Liquid hydrocarbon fuels containing high molecular weight Mannich bases
US3960515A (en) 1973-10-11 1976-06-01 Chevron Research Company Hydrocarbyl amine additives for distillate fuels
GB1486144A (en) 1974-03-13 1977-09-21 Cities Service Oil Co Gasoline additive
US4236020A (en) 1976-06-21 1980-11-25 Chevron Research Company Carbamate deposit control additives
US4288612A (en) 1976-06-21 1981-09-08 Chevron Research Company Deposit control additives
US4191537A (en) 1976-06-21 1980-03-04 Chevron Research Company Fuel compositions of poly(oxyalkylene) aminocarbamate
US4160648A (en) 1976-06-21 1979-07-10 Chevron Research Company Fuel compositions containing deposit control additives
US4233168A (en) 1978-06-19 1980-11-11 Chevron Research Company Lubricant compositions containing dispersant additives
US4197409A (en) 1978-08-08 1980-04-08 Chevron Research Company Poly(oxyalkylene)aminocarbomates of alkylene polyamine
US4243798A (en) 1979-08-09 1981-01-06 Chevron Research Company Process for the production of a polymeric carbamate
US4292046A (en) 1979-08-10 1981-09-29 Mobil Oil Corporation Detergent compositions
US4270930A (en) 1979-12-21 1981-06-02 Chevron Research Company Clean combustion chamber fuel composition
US4518782A (en) 1981-08-10 1985-05-21 Texaco Inc. Fuel compositions containing N-alkyl glycyl imidazoline
US4409000A (en) 1981-12-14 1983-10-11 The Lubrizol Corporation Combinations of hydroxy amines and carboxylic dispersants as fuel additives
EP0149486A3 (en) 1984-01-17 1986-10-08 Atlantic Richfield Company Detergent composition and gasoline composition containing same
US4836829A (en) 1986-03-14 1989-06-06 Exxon Research And Engineering Company Fuel composition and process for multi-port fuel injection systems (PNE-509)
DE3611230A1 (de) 1986-04-04 1987-10-08 Basf Ag Polybutyl- und polyisobutylamine, verfahren zu deren herstellung und diese enthaltende kraft- und schmierstoffzusammensetzungen
US4810263A (en) 1986-04-11 1989-03-07 Exxon Research And Engineering Company Fuel composition
US4729769A (en) 1986-05-08 1988-03-08 Texaco Inc. Gasoline compositions containing reaction products of fatty acid esters and amines as carburetor detergents
US4881945A (en) 1987-10-23 1989-11-21 Chevron Research Company Fuel compositions containing very long chain alkylphenyl poly(oxyalkylene) aminocarbonates
DE3826608A1 (de) 1988-08-05 1990-02-08 Basf Ag Polyetheramine oder polyetheraminderivate enthaltende kraftstoffe fuer ottomotoren
DE3826797A1 (de) 1988-08-06 1990-02-08 Basf Ag Kraftstoffzusammensetzungen, die polycarbonsaeureester langkettiger alkohole enthalten
DE3838918A1 (de) 1988-11-17 1990-05-23 Basf Ag Kraftstoffe fuer verbrennungsmaschinen
EP0382159A1 (en) 1989-02-06 1990-08-16 E.I. Du Pont De Nemours And Company Defouling of fuel systems
WO1990010051A1 (en) 1989-02-21 1990-09-07 Union Oil Company Of California Fuel composition for control of intake valve deposits
GB9007431D0 (en) 1990-04-03 1990-05-30 Shell Int Research Diesel fuel additives
EP0557516B1 (en) 1991-09-13 1996-07-17 Chevron Chemical Company Fuel additive compositions containing polyisobutenyl succinimides
US5697988A (en) 1991-11-18 1997-12-16 Ethyl Corporation Fuel compositions
GB9208034D0 (en) 1992-04-10 1992-05-27 Bp Chem Int Ltd Fuel composition
US5620486A (en) 1994-12-30 1997-04-15 Chevron Chemical Company Fuel compositions containing aryl succinimides
BR9702216A (pt) * 1996-05-14 1999-12-28 Chevron Chem Co Composição de aditivo de combustìvel, composição de combustìvel, concentrado de combustìvel.
US5618320A (en) 1996-05-14 1997-04-08 Chevron Chemical Company Aromatic esters of polyalkylphenoxyalkanols and fuel compositions containing the same
US5669939A (en) 1996-05-14 1997-09-23 Chevron Chemical Company Polyalkylphenoxyaminoalkanes and fuel compositions containing the same
US6203584B1 (en) 1998-03-31 2001-03-20 Chevron Chemical Company Llc Fuel composition containing an amine compound and an ester
US5954843A (en) 1998-08-28 1999-09-21 Chevron Chemical Company Llc Aminocarbamates of polyalkyl or polyalkenyl N-hydroxyalkyl succinimides and fuel compositions containing the same
US5993497A (en) 1998-08-28 1999-11-30 Chevron Chemical Company Llc Esters of polyalkyl or polyalkenyl N-hydroxyalkyl succinimides and fuel compositions containing the same
US6114542A (en) 1998-08-28 2000-09-05 Chevron Chemical Company Llc Ethers of polyalkyl or polyalkenyl N-hydroxyalkyl succinimides and fuel compositions containing the same
US5916825A (en) 1998-08-28 1999-06-29 Chevron Chemical Company Llc Polyisobutanyl succinimides and fuel compositions containing the same
US6217624B1 (en) 1999-02-18 2001-04-17 Chevron Chemical Company Llc Fuel compositions containing hydrocarbyl-substituted polyoxyalkylene amines
US20030150154A1 (en) * 2001-12-21 2003-08-14 Cherpeck Richard E. Polyalkylphenoxyaminoalkanes and fuel compositions containing the same
US6660050B1 (en) * 2002-05-23 2003-12-09 Chevron U.S.A. Inc. Method for controlling deposits in the fuel reformer of a fuel cell system
US9035097B2 (en) * 2012-09-12 2015-05-19 Chevron Oronite Company Llc Aminoethylation process having improved yield of aryloxyalkylene amine compounds and reduced urea by-products

Also Published As

Publication number Publication date
EP4214297A1 (en) 2023-07-26
KR102916332B1 (ko) 2026-01-27
AU2021342779A9 (en) 2024-09-26
CN116234891A (zh) 2023-06-06
WO2022058894A1 (en) 2022-03-24
CO2023004450A2 (es) 2023-04-27
AU2025226672A1 (en) 2025-09-18
AU2021342779A1 (en) 2023-04-27
EP4214297B1 (en) 2024-07-10
KR20230068407A (ko) 2023-05-17
MX2023003074A (es) 2023-05-19
CN116234891B (zh) 2025-12-16
JP2025172767A (ja) 2025-11-26
CA3195345A1 (en) 2022-03-24
JP2023541471A (ja) 2023-10-02
US20240026239A1 (en) 2024-01-25

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