Slurry activation of Fischer-Tropsch catalyst with carbon...

Details Slurry activation of Fischer-Tropsch catalyst with carbon... Slurry activation of Fischer-Tropsch catalyst with carbon...

2006-02-21

2006-02-21

Parsa, J. (Department: 1621)

Chemistry: fischer-tropsch processes; or purification or recover

Including regeneration of catalyst

C518S700000, C518S720000

Reexamination Certificate

active

07001928

ABSTRACT:
Methods and apparatus for improving the efficiency and effectiveness of in situ reduction of a Fischer-Tropsch catalyst slurry. The preferred embodiments of the present invention are characterized by a system that utilizes a co-feed of carbon monoxide along with the reducing gas into a reduction vessel maintained at an elevated temperature. As the metal oxide reduces to the active Fischer-Tropsch metal, the carbon monoxide acts as a poison to hydrogenolysis and reduces the loss of liquid from the slurry and the production of methane. The carbon monoxide is generally in parts-per-million quantities and will achieve the desired results in quantities less than 5,000 ppm, preferably less than 2,000 ppm.

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