Method for reducing harmful emissions from a diesel engine...

Details Method for reducing harmful emissions from a diesel engine... Method for reducing harmful emissions from a diesel engine...

C - Chemistry, Metallurgy

10

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C10L 1/30 (2006.01) B01D 53/94 (2006.01) C07F 15/00 (2006.01) C07F 17/02 (2006.01) C10L 1/10 (2006.01) C10L 1/14 (2006.01) C10L 10/02 (2006.01) C10L 10/06 (2006.01) F01N 3/023 (2006.01) F01N 3/029 (2006.01) F01N 3/037 (2006.01) F01N 3/20 (2006.01) F02B 51/02 (2006.01) F02B 75/12 (2006.01) F02D 19/12 (2006.01) F02D 41/00 (2006.01) C10L 1/12 (2006.01) C10L 1/16 (2006.01) C10L 1/18 (2006.01) C10L 1/22 (2006.01) C10L 1/24 (2006.01) F02B 3/06 (2006.01)

Patent

CA 2149035

A method to improve the operation of a diesel trap through the use of a fuel additive comprising fuel-soluble compositions of platinum group metal in effective amounts to lower the emissions of unburned hydrocarbons and carbon monoxide from the trap. The catalyst is selective and reduces the oxidation of SO2 to SO3. The platinum group metal compositions are preferably added in amounts effective to provide concentrations of the metal in the fuel of less than 1 part per million (ppm). Lithium and/or sodium compositions can be used in amounts effective to reduce the trap regeneration temperature, e.g. concentrations to provide about 1 to 100 ppm lithium metal, and/or 1 to 30 ppm sodium metal.

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