System for regenerating fluidizable catalyst particles

Details System for regenerating fluidizable catalyst particles System for regenerating fluidizable catalyst particles

1976-03-08

1977-11-08

Tayman, Jr., James H.

Chemistry: physical processes

Physical processes

Crystallization

23288S, 252417, 208120, 208164, B01J 824

Patent

active

040573974

ABSTRACT:
A hydrocarbon conversion-catalyst regeneration riser means system with interconnecting standpipes is described which relies upon catalyst separating and collecting vessels about the upper end of each riser means, means for contacting collected catalyst with gaseous material, standpipe means for passing collected catalyst in each vessel means to the lower portion of each riser means opposite from that from which obtained, a standpipe for passing collected regenerated catalyst directly to a lower bottom portion of said regeneration riser means and another standpipe for passing collected regenerated catalyst into the standpipe passing spent catalyst to the lower portion of the regeneration riser.

REFERENCES:
patent: 3821103 (1974-06-01), Owen et al.
patent: 3844973 (1974-10-01), Stine et al.
patent: 3886060 (1975-05-01), Owen
patent: 3888762 (1975-06-01), Gerhold
patent: 3926778 (1975-12-01), Owen et al.

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