Regeneration method for gravity-flowing deactivated catalyst par

Details Regeneration method for gravity-flowing deactivated catalyst par Regeneration method for gravity-flowing deactivated catalyst par

1977-06-15

1978-06-13

Douglas, Winston A.

Compositions

Preservative agents

Anti-oxidants or chemical change inhibitants

208140, 252418, 23288B, 23288G, B01J 2396, B01J 2120, C10G 3508

Patent

active

040948170

ABSTRACT:
A continuous method for regenerating deactivated catalyst particles in a regeneration zone through which the particles are downwardly movable by way of gravity-flow. Particles are initially introduced into an upper carbon-burning/halogenation section wherein they are contacted by a first air stream and a halogen, or halogen-containing compound. Therefrom, the catalyst particles flow into a lower drying section, wherein they are contacted with a dry second air stream.

REFERENCES:
patent: 3652231 (1972-03-01), Greenwood et al.
patent: 3725249 (1973-04-01), Vesely et al.

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