Fischer-Tropsch catalyst regeneration

Details Fischer-Tropsch catalyst regeneration Fischer-Tropsch catalyst regeneration

2005-09-27

2005-09-27

Silverman, Stanley S. (Department: 1754)

Catalyst, solid sorbent, or support therefor: product or process

Regenerating or rehabilitating catalyst or sorbent

By heat

C502S020000, C502S053000

Reexamination Certificate

active

06949488

ABSTRACT:
Methods and apparatus for providing the heat required to maintain the desired temperature for catalyst regeneration. The catalyst is heated by contacting a reactant gas mixture with the catalyst in order to initiate an exothermic reaction and, once the desired temperature is achieved, exposing the catalyst to a regenerating gas. The temperature may also be maintained by heating the reactant gas mixture prior to contacting the catalyst and/or adding a liquid, which may be heated, to the catalyst. For heating a Fischer-Tropsch catalyst for regeneration, the reactant gas preferably contains less than 12 mole percent carbon monoxide and more preferably contains between 1 and 4 mole percent carbon monoxide.

REFERENCES:
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patent: 5300277 (1994-04-01), Kresge et al.
patent: 6022755 (2000-02-01), Kinnari et al.
patent: 6043288 (2000-03-01), DeGeorge et al.
patent: 6147126 (2000-11-01), DeGeorge et al.
patent: 6486220 (2002-11-01), Wright
patent: 6753351 (2004-06-01), Clark et al.

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