Catalyst rejuvenation in hydrocarbon synthesis slurry with reduc

Details Catalyst rejuvenation in hydrocarbon synthesis slurry with reduc Catalyst rejuvenation in hydrocarbon synthesis slurry with reduc

1997-05-02

1998-09-22

Geist, Gary

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

Regenerating or rehabilitating catalyst or sorbent

Including segregation of diverse particles

502 22, 502 53, 518700, B01J 2034

Patent

active

058113630

ABSTRACT:
A reversibly deactivated, particulate catalyst in a hydrocarbon synthesis slurry is rejuvenated by circulating the slurry from a slurry body through a rejuvenation zone in which hydrogen contacts the slurry and rejuvenates the catalyst to form a rejuvenated catalyst slurry and an offgas which contains catalyst deactivating species. The offgas is separated and removed from the rejuvenated slurry before it is passed back into the slurry body. This avoids or minimizes contamination and recontamination of the slurry body with the deactivating species produced by the rejuvenation process.

REFERENCES:
patent: 5260239 (1993-11-01), Hsia
patent: 5268344 (1993-12-01), Pedrick et al.
patent: 5283216 (1994-02-01), Mitchell
patent: 5288673 (1994-02-01), Behrmann et al.
patent: 5382748 (1995-01-01), Behrmann et al.

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