Chemical apparatus and process disinfecting – deodorizing – preser – Chemical reactor – Fluidized bed
Patent
1994-04-28
1995-10-03
Warden, Robert J.
Chemical apparatus and process disinfecting, deodorizing, preser
Chemical reactor
Fluidized bed
422145, 422147, 422235, F27B 1508, F28D 700
Patent
active
054550106
ABSTRACT:
An FCC process decouples the circulation of catalyst on the regeneration side of the process from the circulation of catalyst on the reactor side of the FCC process by mixing the spent and regenerated catalyst from the reactor and regenerator side of the process in a common blending vessel that receives all of the spent and regenerated catalyst from the reactor and regenerator. The blending vessel supplies blended catalyst to raise the solids to oil ratio on the reaction side of the process and regulate catalyst temperatures on the reaction and the regeneration sides of the process. The blending vessel can also retain the majority of the catalyst inventory for both the reactor and regenerator sides of the process. Moreover, by the introduction of a stripping gas into the blending vessel it operates as a hot stripper to remove additional hydrocarbons from the blended catalyst that enters the regeneration zone. The blended catalyst also has a relatively high temperature that benefits the process by allowing rapid initiation of coke combustion in the regeneration zone.
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Lomas David A.
Wegerer David A.
Kim Christopher Y.
McBride Thomas K.
Tolomei John G.
UOP
Warden Robert J.
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