Exhaust gas reduction and catalysts and method of making same

Details Exhaust gas reduction and catalysts and method of making same Exhaust gas reduction and catalysts and method of making same

B - Operations, Transporting

01

J

252/45, 252/51.D

B01J 23/00 (2006.01) B01D 53/34 (2006.01)

Patent

CA 1059976

ABSTRACT OF DISCLOSURE Improved methods for reducing the amounts of hydrocarbon, carbon monoxide and nitrogen oxides in the exhaust gases of internal combustion engines involving the use of catalysts comprising a major amount of crystalline magnesium aluminate spinel and a minor amount of at least one platinum group metal component present in an amount sufficient to promote at least one of the following: (1) the oxidation of at least a portion of the hydrocarbon and carbon monoxide contained in the exhaust gases of an internal combustion engine and (2) the chemical reduction of at least a portion of the nitrogen oxides contained in the exhaust gases of an internal combustion engine. Improved catalysts as well as improved methods for making the present catalyst are also included.

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