Three-way catalysts of improved efficiency

Details Three-way catalysts of improved efficiency Three-way catalysts of improved efficiency

1985-09-04

1988-04-19

Shine, Wm. J.

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

Catalyst or precursor therefor

Metal, metal oxide or metal hydroxide

4232135, B01J 2104, B01J 2310, B01J 2342, B01J 2389

Patent

active

047389478

ABSTRACT:
A three-way catalyst of improved efficiency suitable for simultaneously oxidizing both gaseous hydrocarbons and carbon monoxide, while reducing nitrogen oxides is disclosed. The three-way catalyst includes alumina, a platinum group metal and a rare earth metal oxide having deposited thereon in intimate contact therewith a p-type metal oxide.

REFERENCES:
patent: 3993572 (1976-11-01), Hindin et al.
patent: 4157316 (1979-06-01), Thompson et al.
patent: 4448895 (1984-05-01), Ono et al.
patent: 4492769 (1985-01-01), Blanchard et al.

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