Pressure swing catalyst regeneration procedure for...

Chemistry: fischer-tropsch processes; or purification or recover – Including regeneration of catalyst

Reexamination Certificate

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Details

C518S715000, C518S721000, C502S020000, C502S034000

Reexamination Certificate

active

06869978

ABSTRACT:
A process is disclosed for regenerating a catalyst used in a process for synthesizing hydrocarbons. The synthesis process involves contacting a feed stream comprising hydrogen and carbon monoxide with a catalyst in a reaction zone maintained at conversion-promoting conditions effective to produce an effluent stream comprising hydrocarbons. The regeneration process involves contacting a deactivated Fischer-Tropsch catalyst with a regeneration gas under regeneration-promoting conditions that include a pressure lower than the mean Fischer-Tropsch reaction pressure, for a period of time sufficient to reactivate the Fischer-Tropsch catalyst.

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PCT International Search Report for Application No. PCT/US02/15460 dated Aug. 21, 2002; (pp. 5).

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