Chemistry of inorganic compounds – Modifying or removing component of normally gaseous mixture – Mixture is exhaust from internal-combustion engine
Patent
1990-07-13
1992-02-04
Heller, Gregory A.
Chemistry of inorganic compounds
Modifying or removing component of normally gaseous mixture
Mixture is exhaust from internal-combustion engine
423224, 502103, 502326, B01J 802, C01B 2100, C01B 1710
Patent
active
050858416
ABSTRACT:
A catalyst mixture of platinum, rhodium, and rhenium is employed in the combustion of gaseous, liquid and/or solid fuel in combustion chambers such as diesel and gasoline engines, for reduction of pollution emitted from the combustion chambers. The platinum serves as a catalyst with carbon and carbon monoxide to produce carbon dioxide, the rhodium serves for reducing oxides of nitrogen to nitrogen gas and oxygen gas, and the rhenium serves as a catalytic promoter for the catalytic functions of the platinum and the rhodium. The rhodium also promotes the catalytic action of the platinum. The catalytic mixture is introduced into a flame zone of a combustion chamber in any convenient manner, such as by use of an air draft. The composition of the mixture is as follows, namely, 1-9 milligrams of platinum, 0.3-3 milligrams rhodium, and 0.3-3 milligrams rhenium for treating 24 kilograms of fuel.
REFERENCES:
patent: 4157316 (1977-06-01), Thompson et al.
patent: 4295816 (1981-10-01), Robinson
patent: 4475483 (1984-10-01), Robinson
patent: 4497783 (1985-02-01), Barber
patent: 4621071 (1986-11-01), Blanchard et al.
R. M. Montano et al, Simultaneous Reduction of Soot and NO.sub.x in Diesel Engines by Homogeneous Catalysis of Group Platinum Metals, The Society of Automotive Engineers, Aug. 1989.
Heller Gregory A.
Warren David M.
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