Peroxide Decomposers and Radical Chain Inhibitors Used as Diesel Fuel Stabilizer Additive Package (264)

Hydrocarbon liquids, such as gasoline, diesel fuel, and jet fuel, are known to react with oxygen and form peroxides during processing, distribution, and storage. The formation of these peroxides has a detrimental effect on fuel system components, such as "O"-rings and gasket materials. Peroxides cause premature aging of these components, resulting in excessive maintenance and/or fuel leakage. These leaks can be both environmental and safety hazards.

The increasing use of "low sulfur" fuels greatly exacerbates the problem, as these fuels are lacking in "naturally occurring" antioxidants which inhibit reaction with oxygen. For example, the State of California was forced to increase the sulfur limit in diesel fuels from 10 to 50 ppm when the "low sulfur" fuel was blamed for numerous problems in diesel engine operation.

Researchers at the University of Dayton Research Institute have formulated a novel additive package that nearly eliminates fuel oxidation and the formation of peroxides under fuel system and storage conditions at both low and high temperatures. The two active components of the package act synergistically to prevent oxidation and remove peroxides, thereby eliminating problems encountered due to the interactions of peroxides with key system components.

U.S. Patent Application 09/398,119 filed September 16, 1999.

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