Catalyst for purifying exhaust gases

Details Catalyst for purifying exhaust gases Catalyst for purifying exhaust gases

1987-08-07

1989-07-18

Shine, W. J.

Catalyst, solid sorbent, or support therefor: product or process

Catalyst or precursor therefor

Metal, metal oxide or metal hydroxide

502525, 4232135, B01J 2302, B01J 2310, B01J 2338

Patent

active

048493988

ABSTRACT:
A catalyst for purifying exhaust gases contains: a catalyst support, a perovskite double oxide comprising at least one alkaline earth metal oxide, lathanum oxide and cerium oxide, carried on the catalyst support, and noble metal catalyst components carried on the catalyst support.
The catalyst for purifying exhaust gases according to the present invention offers an improved durability and purifying ratios for carbon monoxide CO, hydrocarbons HC and nitrogen oxides NOx.

REFERENCES:
patent: 3905918 (1975-09-01), Mai et al.
patent: 4237032 (1980-12-01), Evans et al.

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