Reactivation of noble metal-containing catalyst materials

Details Reactivation of noble metal-containing catalyst materials Reactivation of noble metal-containing catalyst materials

1985-11-13

1987-03-17

Konopka, P. E.

Catalyst, solid sorbent, or support therefor: product or process

Regenerating or rehabilitating catalyst or sorbent

Gas or vapor treating

208111, 208140, 502 52, B01J 2938, C10G 4718, C10G 39095

Patent

active

046507809

ABSTRACT:
A coke-deactivated noble metal-containing catalyst is sulfided with a sulfiding agent, e.g., H.sub.2 S in H.sub.2, then coke is burned from the sulfided catalyst by contacting the catalyst with oxygen, optionally in the presence of sulfur dioxide, and then the catalyst is reduced with a reducing agent, e.g., H.sub.2. The process permits burning off coke while avoiding excessive agglomeration of the noble metals on the catalyst.

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patent: 4507397 (1985-03-01), Buss
patent: 4555495 (1985-11-01), Krishnamurthy

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