Union Oil Company of California

Diane D Kanne

William M Fruscella

Ross Y Iwamoto

Hydrocarbon fuels, especially diesel fuel compositions, contain alpha-ketocarboxylate additives such as methyl pyruvate to reduce particulate emissions therefrom when combusted in an internal combustion engine. The additives are preferably non-aromatic and metals-free.

Hydrocarbon fuel composition containing alpha-ketocarboxylate additive

Hydrocarbon fuels, especially diesel fuel compositions, contain orthoesters to reduce particulate emissions therefrom when combusted in an internal combustion engine.

Hydrocarbon fuel composition

Diesel fuel compositions containing dimethyl carbonate reduce pollution levels resulting when said fuel is combusted in a diesel engine.

Air pollution reduction

Hydrocarbon fuels heavier than gasoline, especially diesel fuel compositions, contain carbonate additives, preferably non-aromatic, metals-free carbonates, to reduce particulate emissions therefrom when combusted in an internal combustion engine.

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Yorba Linda, CA, United States of America

Diane D Kanne