Patent ID: 8349032

Claim:
A composition comprising a mixture of diesel fuel containing from about 0.5-75 wt. % of an oxygenated fuel comprised of alkyl esters and alkyl diesters from lower alkyl, containing 1 to 8 carbon atoms, esters of fatty acids or free fatty acids prepared by a method which comprises: (a) combining the lower alkyl esters, or free fatty acids, with an alcohol containing 1 to 8 carbon atoms, and an alkaline catalyst to provide a reaction mixture; (b) exposing the reaction mixture to ozone to cleave double bonds in the acids or esters to provide terminal ends which react with the alcohol; and (c) separating the alkaline catalyst and any unreacted amounts of the alcohol from the reaction mixture to provide the oxygenated fuel; wherein the oxygenated fuel comprises an azelate diester, a nonanoate monoester, and a hexanoate monoester.