Rare earth and platinum group metal catalyst compositions

Details Rare earth and platinum group metal catalyst compositions Rare earth and platinum group metal catalyst compositions

1978-04-07

1979-10-09

Shine, W. J.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

4232135, B01J 2104, B01J 2310, B01J 2340

Patent

active

041705734

ABSTRACT:
A catalyst composition comprising a composite of ceria, lanthana, and alumina and a catalytically-effective amount of one or more platinum group metals deposited on the composite is disclosed. The composite is prepared by depositing a cerium compound on a calcined admixture of the lanthana and the alumina and calcining the composite. The catalyst is capable of operating in the combustion of carbonaceous fuel at high temperatures, e.g., greater than 2400.degree. F. (1317.degree. C.), for extended periods of time such as 20 hours with low emissions of carbon monoxide and nitrogen oxides.

REFERENCES:
patent: 3966391 (1976-06-01), Hindin et al.
patent: 3993572 (1976-11-01), Hindin et al.

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