Method of regenerating deactivated catalyst

Details Method of regenerating deactivated catalyst Method of regenerating deactivated catalyst

1992-09-04

1998-05-26

Achutamurthy, Ponnathapura

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

Regenerating or rehabilitating catalyst or sorbent

Gas or vapor treating

502 35, 208140, B01J 2938, B01J 3844, B01J 3842, C10G 35095

Patent

active

057564140

ABSTRACT:
The present invention is a process for regenerating deactivated catalyst or redispersing catalytic metal in a fresh catalyst comprising at least one Group VIII catalytic metal, zeolite, an inert binder. The process comprises coke burn, hydrogen reduction, catalyst conditioning, oxychlorination, low pressure stripping, and low pressure final hydrogen reduction.

REFERENCES:
patent: 3986982 (1976-10-01), Crowsom et al.
patent: 4192771 (1980-03-01), Burbidge et al.
patent: 4218338 (1980-08-01), Huin et al.
patent: 4855269 (1989-08-01), Mohr
patent: 4914068 (1990-04-01), Cross et al.
patent: 4925819 (1990-05-01), Fung
patent: 5106798 (1992-04-01), Fung
patent: 5256612 (1993-10-01), Fung

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