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Method of producing a diesel fuel blend having a pre-determined flash-point and pre-determined increase in cetane number

United States Patent

6,758,870
July 6, 2004
View the Complete Patent at the US Patent & Trademark Office
The present invention relates to a method of producing a diesel fuel blend having a pre-determined flash-point and a pre-determined increase in cetane number over the stock diesel fuel. Upon establishing the desired flash-point and increase in cetane number, an amount of a first oxygenate with a flash-point less than the flash-point of the stock diesel fuel and a cetane number equal to or greater than the cetane number of the stock diesel fuel is added to the stock diesel fuel in an amount sufficient to achieve the pre-determined increase in cetane number. Thereafter, an amount of a second oxygenate with a flash-point equal to or greater than the flash-point of the stock diesel fuel and a cetane number greater than the cetane number of the stock diesel fuel is added to the stock diesel fuel in an amount sufficient to achieve the pre-determined increase in cetane number.
Waller; Francis Joseph (Allentown, PA), Quinn; Robert (East Texas, PA)
Air Products and Chemicals, Inc. (Allentown, PA)
10/ 050,330
20020134008
January 16, 2002
STATMENT REGARDING FEDERALLY SPONSERED RESEARCH OR DEVELOPMENT This invention was made with Government support under Cooperative Agreement DE-FC22-95PC93052 awarded by the United States Department of Energy. The Government has certain rights in this invention.