Hydrocarbyl soluble quaternary ammonium carboxylates and fuel compositions containing them
AssigneeAfton Chemical Corporation
InventorsXinggao Fang, Scott D. Schwab, Daniel Taylor
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Abstract
A fuel additive composition, fuel composition, method of improving the injector performance of a fuel injected engine, method for preventing or cleaning up deposits in an engine or fuel system, method of reducing wear in a fuel system of an engine, and method of improving the demulsibility of a fuel composition. The fuel composition includes from about 5 to about 300 ppm by weight based on a total weight of the fuel composition of a hydrocarbyl soluble quaternary ammonium carboxylate derived from a quaternary ammonium carbonate and an organic acid.
Claims21
A fuel additive composition for a fuel injected engine comprising a fuel additive component and a hydrocarbyl soluble quaternary ammonium carboxylate derived from a reaction of a quaternary ammonium carbonate with an organic acid having a molecular weight of at least about 282 g/mol, wherein the quaternary ammonium carbonate is formed by reacting a carbonic acid diester with a tertiary amido amine compound.
A method of improving the injector performance of a fuel injected engine comprising operating the engine on a fuel composition comprising a major amount of fuel and from about 5 to about 300 ppm by weight based on a total weight of the fuel composition of a hydrocarbyl soluble quaternary ammonium carboxylate derived from a reaction of a quaternary ammonium carbonate with an organic acid having a molecular weight of at least about 282 g/mol, wherein the quaternary ammonium carbonate is formed by reacting a carbonic acid diester with a tertiary amido amine compound.
A method of reducing wear in a fuel system of an engine comprising combusting in the engine a fuel composition comprising a major amount of fuel and from about 5 to about 300 ppm by weight based on a total weight of the fuel composition of a hydrocarbyl soluble quaternary ammonium carboxylate derived from a reaction of a quaternary ammonium carbonate with an organic acid having a molecular weight of at least about 282 g/mol, wherein the quaternary ammonium carbonate is formed by reacting a carbonic acid diester with a tertiary amido amine compound.
A method of improving the demulsibility of a fuel composition comprising providing as a fuel composition a major amount of fuel and from about 5 to about 300 ppm by weight based on a total weight of the fuel composition of a hydrocarbyl soluble quaternary ammonium carboxylate derived from a reaction of a quaternary ammonium carbonate with an organic acid having a molecular weight of at least about 282 g/mol, wherein the quaternary ammonium carbonate is formed by reacting a carbonic acid diester with a tertiary amido amine compound.
Dependencies are inferred from the claim text.