Process for regenerating a monofunctional large-pore zeolite cat

Details Process for regenerating a monofunctional large-pore zeolite cat Process for regenerating a monofunctional large-pore zeolite cat

1987-06-29

1989-08-08

Konopka, Paul E.

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

Regenerating or rehabilitating catalyst or sorbent

Gas or vapor treating

208140, 502 66, 502 74, 585419, B01J 2938, B01J 2396, C07C 252, C10G 35095

Patent

active

048552690

ABSTRACT:
The present invention is a process for regenerating a large-pore zeolitic catalyst that has been deactivated by the formation of Group VIII metal agglomerates on the catalyst surface. In the process, the Group VIII metal agglomerates are redispersed to produce agglomerates of small size. It comprises an oxychlorination step, a nitrogen purge step and a reduction step.

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Patent Abstracts of Japan, vol. 7, No. 285 (C-201) (1430), 20 Dec. 1983 and Japanese Patent Application 58164527 (Teijin Yuka K.K.) 29 Sep. 1983 (provided only as an abstract).

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