Slurry hydrocarbon synthesis with cyclic CO purge and catalyst r

Details Slurry hydrocarbon synthesis with cyclic CO purge and catalyst r Slurry hydrocarbon synthesis with cyclic CO purge and catalyst r

1997-05-02

1998-10-06

Geist, Gary

Chemistry: fischer-tropsch processes; or purification or recover

Liquid phase fischer-tropsch reaction

518705, 502 21, 502 22, 502 53, 502765, C07C 2700

Patent

active

058177019

ABSTRACT:
Partially deactivated catalyst in a slurry hydrocarbon synthesis process is rejuvenated employing a cyclic rejuvenation process in which syngas or CO flow into the slurry is stopped to stop the hydrocarbon synthesis reaction, the CO purged out of the slurry with a purge gas in the presence of hydrogen, the catalyst rejuvenated with a hydrogen containing rejuvenating gas and the hydrocarbon synthesis reaction restarted by passing the synthesis gas feed back into the reactor. All or a portion of the purge gas and/or the rejuvenating gas may be recycled during the respective purge and/or rejuvenation. The hydrogen required during the purge is typically part of the purge gas.

REFERENCES:
patent: 5157054 (1992-10-01), Herbolzheimer et al.
patent: 5260239 (1993-11-01), Hsia
patent: 5268344 (1993-12-01), Pedrick et al.
patent: 5283216 (1994-02-01), Mitchell
patent: 5292705 (1994-03-01), Mitchell
patent: 5348982 (1994-09-01), Herbolzheimer et al.
patent: 5545674 (1996-08-01), Behrmann et al.

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