초록 ▼

A low-emissions diesel fuel comprises fungible aviation kerosene grade 55, 50-300 ppm detergent, 25-500 ppm lubricity additive and a bimetallic, fuel soluble platinum and cerium fuel borne catalyst (e. g., 0.1-2.0 ppm platinum COD and 5-20 ppm cerium oleate). The fuel can be used as is or in the for

A low-emissions diesel fuel comprises fungible aviation kerosene grade 55, 50-300 ppm detergent, 25-500 ppm lubricity additive and a bimetallic, fuel soluble platinum and cerium fuel borne catalyst (e. g., 0.1-2.0 ppm platinum COD and 5-20 ppm cerium oleate). The fuel can be used as is or in the form of an emulsion. A method of reducing the emissions of pollutants from a diesel engine, comprising running the engine on a fuel as defined. Retarding engine timing can further reduce NOx and the use of a diesel particulate filter and/or diesel oxidation catalyst can provide further reductions in carbon monoxide, unburned hydrocarbons and particulates.

대표청구항 ▼

The invention claimed is: 1. A low-emissions diesel fuel comprising fungible aviation kerosene, detergent, lubricity additive and a bimetallic, fuel-soluble platinum group metal and cerium fuel borne catalyst, wherein the cerium is supplied as a fuel soluble hydroxy oleate propionate complex. 2.

The invention claimed is: 1. A low-emissions diesel fuel comprising fungible aviation kerosene, detergent, lubricity additive and a bimetallic, fuel-soluble platinum group metal and cerium fuel borne catalyst, wherein the cerium is supplied as a fuel soluble hydroxy oleate propionate complex. 2. A low-emissions diesel fuel according to claim 1 comprising fungible aviation kerosene grade 55, 50-300 ppm detergent, 25-500 ppm lubricity additive and as the fuel borne catalyst a combination of 0.01-2.0 ppm of platinum as a fuel-soluble platinum composition and 2-20 ppm cerium. 3. A low-emissions fuel according to claim 1, wherein the platinum is supplied as 1,5-cyclooctadiene platinum diphenyl. 4. A low-emissions fuel according to claim 1, containing 4 to 15 ppm cerium and 0.1 to 1.0 ppm platinum. 5. A low-emissions fuel according to claim 1, wherein the aviation kerosene is emulsified with water, the water comprising from 1 to 30% water based on the weight of the aviation kerosene. 6. A method of reducing the emissions of pollutants from a diesel engine, comprising running the engine on a fuel as defined in claim 1. 7. A method for operating an engine with decreased NOx comprising retarding engine timing by from 2 to 60째 to provide for reduced NOx and burning a fuel as described in claim 1. 8. A method for operating an engine with decreased emission of unburned hydrocarbons, carbon monoxide and particulate matter: comprising operating the engine by burning a fuel as described in claim 1, thereby producing combustion gases, and passing the gases through a diesel oxidation catalyst and/or a diesel particulate filter. 9. A method for operating an engine with decreased emission of NOx, unburned hydrocarbons, carbon monoxide and particulate matter, comprising: retarding engine timing by from 2 to 60째 to provide for reduced NOx and operating the engine by burning a fuel as described in claim 1, thereby producing combustion gases, and passing the gases through a diesel oxidation catalyst and/or a diesel particulate filter. 10. A method for operating an engine with decreased emission of NOx, unburned hydrocarbons, carbon monoxide and particulate matter, comprising: employing exhaust gas as a portion of combustion air to provide for reduced NOx and operating the engine by burning a fuel as described in claim 1, thereby producing combustion gases, and passing the gases through a diesel oxidation catalyst and/or a diesel particulate filter. 11. A low-emissions diesel fuel comprises aviation kerosene, detergent, lubricity additive and a bimetallic, fuel-soluble platinum group metal and cerium fuel borne catalyst, wherein the fuel contains 50-300 ppm detergent, 25-500 ppm lubricity additive and as the fuel borne catalyst a combination of 0.01-2.0 ppm of platinum and 2-20 ppm cerium supplied as a fuel soluble cerium hydroxy oleate propionate complex.