Abstract:
The present invention is directed to a method to clean up or keep clean the fuel system of a direct injection spark-ignited engine by operating the engine with a fuel composition that includes a liquid fuel and a fuel additive composition.The fuel additive composition useful in the present invention has at least one nitrogen-containing dispersant and optionally a fluidizer where the dispersant has a specific lipophilic parameter and the dispersant or the dispersant and the fluidizer have a specific hydrophilic-lipophilic parameter, the dispersant provides about 0.15 to about 50 ppm by weight nitrogen in the fuel composition, and the fluidizer and/or the dispersant provide about 10 to about 10,000 ppm by weight active components.The method of the present invention is effective in controlling deposits in fuel injectors and combustion chambers of a direct injection spark-ignited engine.
Abstract:
In a method operating an internal combustion engine, a nitrogen-containing detergent composition is introduced into a combustion chamber of the engine wherein the detergent composition can improve the performance of both a fuel composition and a lubricating oil of the engine. The detergent composition contains (A) a reaction product of a hydrocarbyl-substituted acylating agent and an amine, (B) a hydrocarbyl-substituted amine, (C) a Mannich reaction product, (D) a high molecular weight polyetheramine, or (E) a mixture thereof.
Abstract:
The present invention is directed to fuel additive compositions of detergents combined with fluidizers and to hydrocarbon fuel compositions containing these fuel additive compositions. The fuel additive compositions of the present invention combine a Mannich detergent, formed from reaction of an alkylphenol with an aldehyde and an amine, with a fluidizer that can be a polyetheramine or a polyether or a mixture thereof and, optionally, with a succinimide detergent. Fuel compositions containing these fuel additive compositions are very effective in reducing intake valve deposits in gasoline fueled engines, especially when the weight ratio of detergent(s) to fluidizer(s) is about 1:1 on an actives basis.
Abstract:
PROBLEM TO BE SOLVED: To obtain a composition useful for decreasing intake valve deposits in internal combustion engines or for reducing occurrence of valve sticking by compounding a polyalkene-substituted amine and a specific poly(oxypropylene)monool having a hydrocarbyl terminal group. SOLUTION: This composition comprises (A) at least one polyalkene- substituted amine and (B) at least one poly(oxypropylene)monool having a hydrocarbyl terminal group represented by the formula (wherein R is an alkyl or alkyl-substituted aromatic group having about 8 to about 20 carbon atoms; and x is a number of about 13 to about 28), the wt. ratio of the components A to B being in the range of about 10:1 to about 1:10. As the component A are preferable poly(butene)amines having a number average mol.wt. of about 500 to about 3,000, and there can be exemplified Npoly(butene)amines, N-poly(butene) ethylenediamines, N-poly(butene)diethylenetriamines and the like.
Abstract:
This invention relates to a composition, comprising: (A) a compound represented by formula (I): RO(C4H8O)nCH2CH2CH2NH2, wherein in formula (I), R is an aliphatic hydrocarbyl group of about 8 to about 30 carbon atoms, an n is a number in the range of about 12 to about 30; and (B) a compound selected from the group consisting of: a fatty acid; a fatty acid amide; a fatty acid ester; an amide or imide derived from a hydrocarbyl substituted succinic acid or anhydride wherein the hydrocarbyl substituent has about 8 to about 30 carbon atoms; an alkoxylated amine, and mixtures of two or more thereof. The invention also relates to concentrates and fuels containing the foregoing composition.
Abstract:
La tecnología descrita se refiere a una composición y método para aumentar la viscosidad de una composición de dióxido de carbono, así como a un método para aumentar la producción y recuperación de hidrocarburos de una formación subterránea que emplea la composición de dióxido de carbono viscosificado.
Abstract:
This invention relates to compositions and methods for inhibiting corrosion and deposit formation in fuel handling equipment, with reduced or eliminated incidence of fuel filter plugging and internal diesel injector deposits (IDID) in the equipment that eventually employs the final commercially blended form of the fuel. More specifically, the invention relates to inhibiting corrosion from the walls of fuel pipelines and storage equipment and preventing deposits in engines.
Abstract:
This invention relates to a composition, comprising:(A) a compound represented by the formulawherein in formula (I), R is an aliphatic hydrocarbyl group of about 8 to about 30 carbon atoms, an n is a number in the range of about 12 to about 30; and(B) a compound selected from the group consisting of: a fatty acid; a fatty acid amide; a fatty acid ester; an amide, imide or ester derived from a hydrocarbyl substituted succinic acid or anhydride wherein the hydrocarbyl substituent has about 8 to about 30 carbon atoms; an alkoxylated amine, and mixtures of two or more thereof. The invention also relates to concentrates and fuels containing the foregoing composition.
Abstract:
The present invention is directed to a composition made by reactingA) an aldehyde of 1 to 12 carbon atoms or a reactive equivalent thereof; andB) at least one etheramine represented by the formula R 2 [O(CH 2 CH(R)O) n ―R 1 ―NH 2 ] y (I)wherein each n is a number from 0 to about 50; each R is selected from the group consisting of hydrogen, hydrocarbyl groups of 1 to about 16 carbon atoms, and mixtures thereof; each R 1 is selected from the group consisting of a hydrocarbylene group containing 2 to about 18 carbon atoms and a group represented by the formula ―(R 6 N) p ―R 7 ―wherein both R 6 and R 7 are hydrocarbylene groups of about 3 to about 10 carbon atoms and p is a number from 1 to 4; y is 1, 2, or 3; and each R 2 is a hydrocarbyl group having a valence of y and containing 1 to about 50 carbon atoms when y is 1 and 1 to about 18 carbon atoms when y is 2 or 3; y is 1, 2, or 3; provided that when n is zero, y is 1.The reaction product can include a N-substituted perhydro-s-triazine represented by the formulaFuel additives containing these compositions are useful in reducing intake valve deposit and do not contribute to the increase in combustion chamber deposit in port fuel injected engines.