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US 12,454,653 B2Granted
Gasoline additive composition for improved engine performance
AssigneeAfton Chemical Corporation
InventorsJanice Jianzhao Wang, Andre Williams
Life of this patent
Estimating the term…
Abstract
The present disclosure provides fuel additives including Mannich detergent additive(s) and Mannich-based quaternary ammonium salt detergent additive(s) effective to improve engine performance in both port fuel injected and gasoline direct injection engines.
Claims22
A fuel additive for a spark-ignition engine comprising:
- a detergent including one or more Mannich detergent additives and one or more Mannich-based quaternary ammonium salt detergent additives;
- wherein the one or more Mannich detergent additives include the reaction product of a hydrocarbyl-substituted phenol or cresol, one or more aldehydes, and one or more amines;
- wherein the one or more Mannich-based quaternary ammonium salt detergent additives include (i) a Mannich reaction product or derivative thereof having at least one tertiary amino group and prepared from a hydrocarbyl-substituted phenol, cresol, or derivative thereof, an aldehyde, and a hydrocarbyl amine or polyamine providing the tertiary amino group and reacted with (ii) a quaternizing agent selected from the group consisting of a carboxylic or polycarboxylic acid, ester, amide, or salt thereof or halogen substituted derivative thereof;
- and
- wherein about 2 to about 50 weight percent of the detergent is the one or more Mannich-based quaternary ammonium salt detergent additives.
2 more elements
A gasoline fuel composition comprising
- a detergent including one or more Mannich detergent additives and one or more Mannich-based quaternary ammonium salt detergent additives;
- about 15 to about 300 ppmw of the one or more Mannich detergent additives, wherein the Mannich detergent additive is the reaction product of a hydrocarbyl-substituted phenol or cresol, one or more aldehydes, and one or more amines;
- about 1 to about 200 ppmw of the one or more Mannich-based quaternary ammonium salt detergent additives, wherein the Mannich-based quaternary ammonium salt detergent additive is (i) a Mannich reaction product or derivative thereof having at least one tertiary amino group and prepared from a hydrocarbyl-substituted phenol, cresol, or derivative thereof, an aldehyde, and a hydrocarbyl amine or polyamine providing the tertiary amino group and reacted with (ii) a quaternizing agent selected from the group consisting of a carboxylic or polycarboxylic acid, ester, amide, or salt thereof or halogen substituted derivative thereof;
- wherein about 2 to about 50 weight percent of the detergent is the one or more Mannich-based quaternary ammonium salt detergent additives;
- and
- about 5 to about 150 ppmw of an alkoxylated alcohol.
3 more elements
A method of reducing deposits in a gasoline engine, the method comprising:
- operating a gasoline engine on a fuel composition containing a major amount of a gasoline fuel and a minor amount of a fuel additive by injecting the gasoline fuel through one or more injectors;
- wherein the fuel additive includes a detergent including one or more Mannich detergent additives and one or more Mannich-based quaternary ammonium salt detergent additives;
- wherein the one or more Mannich detergent additives includes the reaction product of a hydrocarbyl-substituted phenol or cresol, one or more aldehydes, and one or more amines;
- wherein the Mannich-based quaternary ammonium salt detergent additive includes (i) a Mannich reaction product or derivative thereof having at least one tertiary amino group and prepared from a hydrocarbyl-substituted phenol, cresol, or derivative thereof, an aldehyde, and a hydrocarbyl amine or polyamine providing the tertiary amino group and reacted with (ii) a quaternizing agent selected from the group consisting of a carboxylic or polycarboxylic acid, ester, amide, or salt thereof or halogen substituted derivative thereof;
- and wherein about 2 to about 50 weight percent of the detergent is the one or more Mannich-based quaternary ammonium salt detergent additives;
- and
- wherein the fuel additive reduces deposits in the gasoline engine.
4 more elements
Dependencies are inferred from the claim text.