Methods and apparatus for separating Fischer-Tropsch catalysts f

Details Methods and apparatus for separating Fischer-Tropsch catalysts f Methods and apparatus for separating Fischer-Tropsch catalysts f

1997-02-06

2000-09-05

Padmanabhan, Sreeni

Chemistry: fischer-tropsch processes; or purification or recover

Including regeneration of catalyst

Solvent utilized

518700, 518724, 252373, 502 22, 502 29, 502326, C07C 2700, C07C 102, B01J 2034

Patent

active

061143995

ABSTRACT:
A method of separating a Fischer-Tropsch catalyst from the output slurry of a Fischer-Tropsch bubble column reactor, where the slurry comprises Fischer-Tropsch catalyst particles and liquid hydrocarbon product is disclosed. The method comprises contacting a compressed hydrocarbon solvent (e.g., a supercritical hydrocarbon solvent, or liquid hydrocarbon solvent which may be at near supercritical conditions) with the output slurry at a temperature and pressure where the liquid hydrocarbon product is soluble in the solvent to form a concentrated slurry phase containing the catalyst particles, and an enriched solvent phase containing liquid hydrocarbon product. This contacting step is then followed by the step of separating the concentrated slurry from the enriched solvent. Apparatus for carrying out the method of the invention is also disclosed.

REFERENCES:
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K. Mc Gee, A Better Bottom Line From The Bottom Of The Barrel, Rose Supercritical Fluid Technology, (1992).

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