Circulating fluid bed reactor system

Details Circulating fluid bed reactor system Circulating fluid bed reactor system

2005-01-25

2005-01-25

Griffin, Walter D. (Department: 1764)

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Solids contacting and mixing

C208S156000, C208S113000, C208S161000, C208SDIG001, C585S640000

Reexamination Certificate

active

06846405

ABSTRACT:
This invention is to a circulating fluid bed reactor that is designed so as to have the ability to adjust catalyst holdup within the reaction zone of the reactor while maintaining substantially constant catalyst circulation rate through the reaction zone. The ability to adjust catalyst hold up independently of catalyst circulation rate provides an advantage of having the ability to maintain a constant conversion level as catalyst activity or feed rates change.

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patent: 4035284 (1977-07-01), Gross et al.
patent: 4495063 (1985-01-01), Walter et al.
patent: 4664888 (1987-05-01), Castagnos, Jr.
patent: 5552120 (1996-09-01), Sechrist et al.
patent: 2 11 848 (1983-07-01), None

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