Three-way catalyst for lean operating engines

Details Three-way catalyst for lean operating engines Three-way catalyst for lean operating engines

1986-02-20

1987-06-23

Shine, W. J.

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

Catalyst or precursor therefor

Metal, metal oxide or metal hydroxide

502302, 4232135, B01J 2104, B01J 2310, B01J 2340

Patent

active

046753087

ABSTRACT:
The invention relates to improved catalytic compositions for controlling gaseous contaminants from the combustion of carbonaceous fuels and, in particular, to three-way catalysts having improved ability to convert unburnt hydrocarbons, carbon monoxide and nitrogen oxides to less harmful forms in the presence of excess oxygen.

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.
Summers et al., "Interaction of Cerium Oxide with Noble Metals", Journal of Catalysis 58, pp. 131-143 (1979).

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