Composition and method for reducing nox and smoke emissions from diesel engines at minimum fuel consumption

摘要

599867 A diesel fuel composition is disclosed, as well as a method for reducing NOx and smoke emissions from a diesel engine at minimum fuel consumption which comprises adding to the diesel engine at least one diesel fuel or blending component for a diesel fuel which has a combination of a low T50 in the range of from 190 C to 280 C, a high cetane number in the range of from 31 to 60, and optionally a high distillation curve slope in the range of from 58 C to 140 C, which combination is effective to afford a combination of the lowest NOx and smoke emissions at the lowest fuel consumption at independent engine control values for the diesel engine that are optimum to afford production of a combination of the lowest NOx and smoke emissions at the lowest fuel consumption, whereby the NOx and smoke emissions from the diesel engine are reduced by at least 10% and 15%, respectively.