Enhancement of promoted copper catalyst

Details Enhancement of promoted copper catalyst Enhancement of promoted copper catalyst

1977-01-19

1978-07-18

Shine, W. J.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

252463, 252466J, 252466PT, B01J 2104, B01J 2372, B01J 2356, B01J 2374

Patent

active

041014510

ABSTRACT:
The activity and resistance to sulfur poisoning of a catalyst consisting essentially of copper and one or more activator metals supported on high surface area gamma-alumina and suitable for selectively hydrogenating alpha-acetylenes in a hydrocarbon stream is enhanced by impregnating the catalyst with aqueous alkali metal hydroxide and heating the impregnated catalyst at about 350.degree. C-650.degree. C. This treatment is effective to increase catalytic activity both in freshly prepared catalyst and in used catalyst poisoned by sulfur which has been regenerated by treatment with aqueous alkali metal hydroxide, heating to an elevated temperature, and leaching with water.

REFERENCES:
patent: 3327013 (1967-06-01), Frevel et al.
patent: 3912789 (1975-10-01), Frevel et al.

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