Catalyst – solid sorbent – or support therefor: product or process – Regenerating or rehabilitating catalyst or sorbent – Gas or vapor treating
Patent
1997-02-20
1997-12-02
Caldarola, Glenn A.
Catalyst, solid sorbent, or support therefor: product or process
Regenerating or rehabilitating catalyst or sorbent
Gas or vapor treating
502 38, 502 56, B01J 2034, B01J 3830, B01J 3812
Patent
active
056935820
ABSTRACT:
A process for regenerating used catalysts having deposited on their surface contaminants comprising carbonaceous and/or sulfur-containing materials which comprises:
a) contacting said particles in a fluidized bed with an oxygen-containing gas at an elevated temperature for a time which does not exceed about twenty minutes wherein at least about fifty percent by weight of the sulfur contaminants are removed, and
b) passing the thus treated catalyst particles to a moving belt and causing the belt to move said catalyst particles through a furnace for at least about two hours, wherein said furnace is maintained at a temperature sufficient to remove the remaining portion of the contaminants from the particles.
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Jean Rong-Her
Vuitel Charles Arthur
Caldarola Glenn A.
Ghyka Alexander G.
McCollough Pamela J.
Shell Oil Company
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