Catalyst for oxidation of carbon monoxide and hydrocarbons in co

Details Catalyst for oxidation of carbon monoxide and hydrocarbons in co Catalyst for oxidation of carbon monoxide and hydrocarbons in co

1977-06-16

1978-09-05

Shine, W. J.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

4232135, B01J 2104, B01J 2356

Patent

active

041118480

ABSTRACT:
A catalyst which consists essentially of a carrier of active alumina and, distributed upon the carrier, at least one catalytic metal selected from Pt, Pd, Rh and Ir and is produced by impregnating the carrier with an aqueous solution of thermally decomposable catalytic metal salt(s) and baking the impregnated carrier in 100% steam at 300.degree.-600.degree. C. The total amount of the catalytic metal(s) in the catalyst is 0.03-0.3 Wt%, and the amounts of Rh and Ir both are limited to 0-0.03 Wt%. The catalyst features a high conversion ability for hydrocarbons, good durability and a low activity on the conversion of SO.sub.2 to SO.sub.3 particularly when a combination of Pt and/or Pd, and either Rh or Ir is used as the catalytic metals.

REFERENCES:
patent: 3741725 (1973-06-01), Graham
patent: 4051073 (1977-09-01), Hegedus et al.

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