Innospec Limited

Shell Usa, Inc.

Shell Internationale Research Maatschappij, B.v.

Simon Mulqueen

Jacqueline Reid

Vincent Burgess

Michael Gee

Rodney Glyn Williams

Alan Norman Ross

Emma Wyatt

Christopher William Clayton

Stephen Leonard Cook

Jacqueline Glen Reid

Keith Woodall

Vince Burgess

Use of an additive selected from nitrate compounds, peroxide compounds, nitrite compounds and polyether compounds, and mixtures thereof in a diesel fuel composition for reducing the build-up of deposits in an Exhaust Gas Recirculation (EGR) system of a compression ignition internal combustion engine.

Use and method to reduce deposits in compression ignition internal combustion engines

A method of combating internal diesel injector deposits caused by carboxylate residues and/or lacquers in the injectors of a diesel engine, the method comprising combusting in the engine a diesel fuel composition comprising (a) the reaction product of a carboxylic acid-derived acylating agent and an amine and (b) a quaternary ammonium salt additive.

Diesel fuel compositions and methods of use thereof

A gasoline composition comprising, as an additive, one or more quaternary ammonium salt(s) (i) formed by the reaction of a compound of formula (A): and a compound formed by the reaction of a hydrocarbyl-substituted acylating agent and an amine of formula (B1) or (B2): wherein R is an optionally substituted alkyl, alkenyl, aryl or alkylaryl group; Ris an alkyl, aryl or alkylaryl group having up to 36 carbon atoms; Rand Rare the same or different alkyl groups having from 1 to 36 carbon atoms; X is an alkylene group having from 1 to 20 carbon atoms; n is from 0 to 20; m is from 1 to 5; and Ris hydrogen or a Cto Calkyl group.

Gasoline composition, method and use

A diesel fuel composition comprising, as an additive, a quaternary ammonium salt formed by the reaction of a compound of formula (A): and a compound formed by the reaction of a hydrocarbyl-substituted acylating agent and an amine of formula (B1) or (B2): wherein R is an optionally substituted alkyl, alkenyl, aryl or alkylaryl group; Ris a Cto Calkyl, aryl or alkylaryl group; Rand Rare the same or different alkyl groups having from 1 to 22 carbon atoms; X is an alkylene group having from 1 to 20 carbon atoms; n is from 0 to 20; m is from 1 to 5; and Ris hydrogen or a Cto Calkyl group. 

Diesel fuel compositions for high pressure fuel systems

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Ellesmere Port, United Kingdom

Simon Mulqueen