Catalyst – solid sorbent – or support therefor: product or process – Regenerating or rehabilitating catalyst or sorbent – Gas or vapor treating
Reexamination Certificate
2005-04-12
2005-04-12
Silverman, Stanley S. (Department: 1754)
Catalyst, solid sorbent, or support therefor: product or process
Regenerating or rehabilitating catalyst or sorbent
Gas or vapor treating
C518S700000, C518S709000
Reexamination Certificate
active
06878655
ABSTRACT:
The present invention is generally related towards the regeneration of hydrocarbon synthesis catalysts. In particular, the present invention is directed towards the regeneration of deactivated Fischer-Tropsch type catalysts using a two step process wherein the catalyst is first prepared using a dry gas and then regenerated using a hydrogen rich gas. The regeneration process is carried out at temperatures and pressures that are generally different than the operating temperatures and pressures for a typical hydrocarbon synthesis reaction.
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Article entitled “Study of effect of water on alumina supported cobalt Fischer-Tropsch catalysts,” by A.M. Hilmen et al., Elsevier, Applied Catalysts A: General 186, pp. 169-188, 1999.
Cnossen Jack E.
Espinoza Rafael L.
Mohedas Sergio R.
Raje Ajoy P.
Conley & Rose, P.C.
ConocoPhillips Company
Strickland Jonas N.
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