Method for treating a catalyst

Details Method for treating a catalyst Method for treating a catalyst

1993-09-27

1995-01-03

Konopka, Paul E.

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

Regenerating or rehabilitating catalyst or sorbent

Gas or vapor treating

208140, 502 50, 502 53, 502 66, 502 74, 502230, 502261, 502325, 502332, 502334, B01J 3844, B01J 2938, B01J 2906, B01J 2338

Patent

active

053786696

ABSTRACT:
A method for regenerating a Group VIII noble metal catalyst which has been contaminated with coke during a reforming process. The method comprises (a) burning off the coke from the catalyst, redispersing the noble metal on the surface of the catalyst support by contacting the catalyst with halogen gas and carbon dioxide, and (c) chemically reducing the catalyst. The presence of carbon dioxide in the redispersing step improves the activity of the regenerated catalyst.

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