Apparatus for controlling catalyst temperature during regenerati

Details Apparatus for controlling catalyst temperature during regenerati Apparatus for controlling catalyst temperature during regenerati

1992-04-27

1996-11-05

Warden, Robert J.

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Fluidized bed

208113, 208157, 208164, 422145, 422146, 422147, 502 44, B01J 3832, F27B 1508

Patent

active

055714820

ABSTRACT:
A catalyst cooler apparatus and process for use with a two-stage regeneration system in a fluidized catalytic cracking process having a device to remove hot catalyst from the second regeneration zone at a point above the air distribution ring under the surface of the catalyst bed equivalent to the catalyst exit to the reactor, a heat exchanger for indirect heat exchange and cooling of the catalyst and a return device for returning the cooled catalyst to the second regeneration zone at or near the bottom of the catalyst bed, beneath the air distribution ring.

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Lai zhou ping, "Catalyst Cooler for Residue Catalytic Cracking", Interpec China '91, vol. 3 (Sep. 11-15, 1991).

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