Process and apparatus for the regeneration of spent FCC...

Details Process and apparatus for the regeneration of spent FCC... Process and apparatus for the regeneration of spent FCC...

2006-12-18

2010-02-02

Lorengo, Jerry (Department: 1793)

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

Regenerating or rehabilitating catalyst or sorbent

Gas or vapor treating

C502S034000, C502S038000, C422S139000, C422S145000, C422S146000, C422S147000

Reexamination Certificate

active

07655589

ABSTRACT:
Disclosed is an improved regeneration process and system for the regeneration of a spent FCC catalyst in a regenerator without vertical partitions by introducing different fluidization gas streams to different regions of a dense phase catalyst zone at the lower end of the regenerator such as a high velocity central region and a low velocity annular zone are formed, positioned below a common dilute catalyst phase.

REFERENCES:
patent: 4107851 (1978-08-01), Takacs et al.
patent: 4859430 (1989-08-01), Julian et al.
patent: 5009796 (1991-04-01), Petrik et al.
patent: 5139649 (1992-08-01), Owen et al.
patent: 5198397 (1993-03-01), Raterman
patent: 5202294 (1993-04-01), Raterman
patent: 2003/0143126 (2003-07-01), Samson
patent: 769818 (1957-03-01), None

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