Catalyst regeneration including method of introducing oxygen int

Details Catalyst regeneration including method of introducing oxygen int Catalyst regeneration including method of introducing oxygen int

1990-04-02

1991-05-21

Konopka, Paul E.

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

Regenerating or rehabilitating catalyst or sorbent

Gas or vapor treating

208163, 208164, 423144, B01J 2120, B01J 3828, B01J 818, C10G 1118

Patent

active

050175360

ABSTRACT:
A method of introducing oxygen-containing gas into a fluidized bed of cracking catalyst particles through a plurality of nozzles which are arranged in the underside portion of the catalyst bed. One aspect of the invention comprises positioning at least one of a plurality of nozzles, used in the fluidized bed, substantially vertically downward. Another aspect of the invention comprises installing at least one nozzle with a length greater than the diameter of a header pipe which supplies the plurality of nozzles. In yet other aspects of the invention comprises installing at least one of the nozzles with a beveled tip, and installing at least one nozzle with a baffle on its tip.

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Venuto, Paul B., and Habib, Thomas, Jr., "Fluid Catalytic Cracking with Zeolite Catalyst", New York, M. Dekker C 1979.

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