Abstract:
Quaternary ammonium salts of formula: wherein each of R 1 and R 2 is independently selected from an optionally substituted alkyl, alkenyl or aryl group having less than 8 carbon atoms, R together with N forms an aliphatic or aromatic heterocycle having less than 12 carbons atoms and R 5 is hydrogen or an optionally substituted hydrocarbyl group. The use of these compounds as fuel or lubricant additives, especially as diesel fuel additives.
Abstract:
Diheterocyclo diazene dicarboxamides have been found to effectively reduce the ignition delay and/or as effective cetane number improvers in diesel fuels and is suitable for use in modern engines.
Abstract:
A method of reducing deposits in a diesel engine, the method comprising combusting in the engine a diesel fuel composition comprising a detergent additive which is not a quaternary ammonium salt or a Mannich reaction product; and a quaternary ammonium salt additive comprising the reaction product of nitrogen containing species having at least one tertiary amine group and a quaternizing agent; wherein the nitrogen containing species is selected from: (i) the reaction product of a hydrocarbyl-substituted acylating agent and a compound comprising at least one tertiary amine group and a primary amine, secondary amine or alcohol group; (ii) a Mannich reaction product comprising a tertiary amine group; and (v) a polyalkylene substituted amine having at least one tertiary amine group.
Abstract:
[0070] A gasoline deposit control additive composition for use in a fuel comprising from about 70 to about 95 volume percent of hydrocarbons in the gasoline boiling range and from about 5 to about 30 volume percent of at least one alcohol, comprising the imine or tertiary amine product of the reaction between (a) at least one aldehyde or ketone or mixture thereof having the formula R 16 CHO, R 16 CH 2 CHO, R 17 (C=O) R 18 or R 17 CH 2 (C=O) R 18 , wherein R 16 , R 17 , and R 18 are the same or different and are each independently a straight or branched chain hydrocarbyl or aryl group that contains from 1 to 18 carbon atoms, and (b) a primary or secondary amine functionality.
Abstract:
The present invention relates to gasoline or a gasoline and ethanol blend fuel compositions that have improved oxidation stability. More specifically, the gasoline or a gasoline and ethanol blend fuel compositions include at least one antioxidant that increases the oxidative stability of the fuel. The gasoline or a gasoline and ethanol blend fuel compositions may also include an antioxidant mixture, or an antioxidant mixture in combination with a polar and/or nonpolar solvent, that increases the oxidative stability of the fuel.
Abstract:
A stable liquid concentrate comprising a dye component which contains a substantial amount of a dye of the formula: wherein the dye component is dissolved in either an aliphatic hydrocarbon or an alicyclic hydrocarbon.
Abstract:
Disclosed is a liquefied gas fuel, which can reduce emissions of air pollutants, such as black smoke, particulate matter, NOx and SOx in an exhaust gas of a compression ignition engine. The liquefied gas fuel comprises liquefied petroleum gas added with a radical generating agent, a lubricity improving agent and liquid hydrocarbon, or dimethyl ether added with the lubricity improving agent.