Catalyst for treatment of exhaust gases from internal combustion

Details Catalyst for treatment of exhaust gases from internal combustion Catalyst for treatment of exhaust gases from internal combustion

1982-03-05

1984-01-17

Shine, W. J.

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

Catalyst or precursor therefor

Silicon containing or process of making

4232135, 502261, 502263, 502304, B01J 2310, B01J 2362, B01J 2389

Patent

active

044263198

ABSTRACT:
The exhaust gases from internal combustion engines are catalytically oxidized/reduced, to remove CO, unburned hydrocarbons and NO.sub.x therefrom, utilizing an improved stable and long-lived catalyst which comprises (1) a support substrate, e.g., a monolithic or particulate support, and (2) an active phase deposited thereon, said active phase (2) comprising (i) cerium, (ii) iron, (iii) at least one of the metals gallium and/or yttrium, (iv) at least one of the metals platinum and/or palladium, and (v) at least one of the metals iridium and/or rhodium.

REFERENCES:
patent: 4283308 (1981-08-01), O'Hara et al.
patent: 4294726 (1981-10-01), Bozon et al.
patent: 4378307 (1983-03-01), Brunelle et al.

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