Catalyst for conversion of engine exhaust gas

Details Catalyst for conversion of engine exhaust gas Catalyst for conversion of engine exhaust gas

1976-08-12

1978-10-17

Gantz, Delbert E.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

250466PT, 4232135, B01J 2102, B01J 2356, B01J 802

Patent

active

041208218

ABSTRACT:
A catalyst, which has high and long-lasting activity on both the oxidation of hydrocarbons and carbon monoxide and the reduction of nitrogen oxides particularly when an internal combustion engine is operated at an air-fuel ratio around a stoichiometric ratio, consists of a carrier of active alumina, 0.05-0.2 Wt% platinum, 0.0015-0.045 Wt% rhodium and 0.002-5 Wt% boron.

REFERENCES:
patent: 3840471 (1974-10-01), Acres
patent: 3856705 (1974-12-01), McArthur
patent: 3951860 (1976-04-01), Acres et al.
patent: 3972831 (1976-08-01), Beuther et al.
J. Chem. Soc. of Japan, vol. 84, #9, 1963 p. 17.

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