Composition and method to improve the fuel economy of hydrocarbon fueled internal combustion engines

摘要

A composition and method of improving the fuel economy of hydrocarbon fuel-powdered internal combustion engines. The composition contains a propoxylated and/or butoxylated reaction product of (a) at least one fatty acid, fatty acid ester, or mixture thereof and (b) a dialkanolamime. The composition is added to a hydrocarbon fuel in an amount of about 5 to about 2,000 ppm, based on the weight of the hydrocarbon fuel, to reduce friction within the engine and achieve an enhanced fuel economy.

主权项

1. A composition comprising (i) an alkoxylated amide having a structure:
R1—C(═O)—N—[CHRaCHRb—O—(CH(CH3)—CH2—O)nH][CHRaCHRb—O—(CH(CH3)—CH2—O)mH], and (ii) an alkoxylated ester having a structure: R1—C(═O)—O—CHRaCHRb—N—[(CHRaCHRbO)—(CH(CH3)—CH2—O)q—H][(CH(CH3)—CH2—O)pH]
wherein R1 is a linear or branched, saturated or unsaturated, C7-C23 aliphatic hydrocarbon radical, optionally containing at least one hydroxyl group;both Ra and Rb are hydrogen or one of Ra and Rb is hydrogen and the other of Ra and Rb is methyl;n+m is 0.5 to 5, wherein n and m can be the same or different and one of n and m can be 0; and p+q is 1 to 5, wherein p and q can be the same or different and q can be 0, and wherein the alkoxylated ester is present in the composition in an amount of up to about 30 weight parts per 100 weight parts of the total alkoxylated amide and alkoxylated ester.