Oxidation reduction catalyst for the treatment of combustion gas

Details Oxidation reduction catalyst for the treatment of combustion gas Oxidation reduction catalyst for the treatment of combustion gas

1977-06-07

1979-02-20

Shine, W. J.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

4232135, B01J 2104, B01J 2310, B01J 2340

Patent

active

041406559

ABSTRACT:
A catalyst which is capable of carrying out simultaneously the oxidation of hydrocarbons and of carbon monoxide and the reduction of nitrogen oxides which are present in the exhaust gases of internal combustion engines comprises a support of inert material coated with lanthanum oxide and a catalytic phase constituted by ruthenium combined with lanthanum in the form of mixed oxide of the perovskite type, by platinum or palladium and by rhodium.

REFERENCES:
patent: 3905918 (1975-09-01), Mai et al.
patent: 3972837 (1976-08-01), Acres et al.
patent: 4001143 (1977-01-01), McCann

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