Patent ID: 8668749
Filing Date: 2014-03-11
Classification: C07D,C10L

Abstract:
1. A method for improving the performance of an engine combusting a diesel fuel having 50 ppm by weight or less sulfur, said method comprising: combining a low sulfur middle distillate fuel with a fuel additive comprising a reaction product of (a) a hydrocarbyl-substituted acylating agent and (b) a reactant selected from the group consisting ethylenediamine, diethylene triamine, triethylene tetramine, tetraethylene pentamine, pentaethylene hexamine, ammonia, aminoguanidine bicarbonate, guanidine, piperazine, methylpiperazine, amino-pyrimidine, aminotriazole, and aminotetrazole, C combusting the additized fuel in the engine, whereby the performance of the engine is improved relative to the performance of the engine in the absence of the fuel additive.