Method for the regeneration of spent alumina-based catalysts

Details Method for the regeneration of spent alumina-based catalysts Method for the regeneration of spent alumina-based catalysts

1987-04-27

1989-01-03

Konopka, Paul E.

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

Regenerating or rehabilitating catalyst or sorbent

Treating with a liquid or treating in a liquid phase,...

208217, 208251H, 423 68, 423150, 502 55, 502516, 502517, B01J 2020, B01J 2394, B01J 3866

Patent

active

047957263

ABSTRACT:
Method for the regeneration of spent alumina-based catalysts wherein the catalyst firstly is treated with steam at elevated temperature in order to remove at least part of the sulphur; subsequently with an oxygen-containing gas at elevated temperature, in order to burn off carbonaceous matter and finally with a basic medium.

REFERENCES:
patent: 3168481 (1965-02-01), Erickson
patent: 3182011 (1965-05-01), Friedman
patent: 3224961 (1965-12-01), Erickson et al.
patent: 3567433 (1971-03-01), Gutnikov
patent: 4409190 (1983-10-01), Van Leirsburg
patent: 4454240 (1984-06-01), Ganguli

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