Process for regenerating a slurry fischer-tropsch catalyst

Details Process for regenerating a slurry fischer-tropsch catalyst Process for regenerating a slurry fischer-tropsch catalyst

2006-01-24

2006-01-24

Johnson, Edward M. (Department: 1754)

Chemistry: fischer-tropsch processes; or purification or recover

Including regeneration of catalyst

Reexamination Certificate

active

06989403

ABSTRACT:
A process for regenerating a slurry Fischer-Tropsch catalyst, which needs regeneration, involves de-waxing and drying the catalyst sufficiently to produce a free-flowing catalyst powder that is fluidizable; fluidizing the catalyst powder; treating the catalyst powder with an oxygen treatment; reducing the catalyst powder with a reducing gas to form a reduced catalyst powder; and mixing the reduced catalyst powder with hydrocarbons to form a regenerated, slurry catalyst. The oxidation and reduction steps may be repeated. An oxygen treatment includes using a fixed O2level with ramped temperatures, fixed temperatures with increased O2levels, or a combination.

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