Diesel fuel containing wax oxidates to reduce particulate emissions
AssigneeTexaco Inc.
InventorsWilliam M. Sweeney, Harold G. Sprague
Life of this patent
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Abstract
Addition of 0.1 to 1.5 percent by weight of wax oxidates to a diesel fuel is found to reduce the amount of soot and invisible particles produced when the fuel is used in a diesel engine. The wax oxidates act synergistically with fuel-soluble organometallic compounds such as alkyl cyclopentadienyl manganese tricarbonyl complex salts in reducing particulates. The wax oxidates used have a ratio of Neutralization Number to Saponification Number below about 0.40 and a Saybolt Universal Viscosity at 210.degree. F. higher than 1600.
Claims3
A fuel composition comprising a mixture of hydrocarbons boiling in the range of 350.degree. to 700.degree. F. containing from 0.1 to 1.5 weight percent each of a wax oxidate characterized by a ratio of Neutralization Number to Saponfication Number below about 0.40 and an SUS viscosity at 210.degree. of above 1500 and of a fuel soluble organometallic compound, said amount being sufficient to reduce particulate emission upon combustion of said fuel.
Dependencies are inferred from the claim text.