Dual function heat withdrawal in a fluidized catalytic cracking-

Details Dual function heat withdrawal in a fluidized catalytic cracking- Dual function heat withdrawal in a fluidized catalytic cracking-

1987-02-24

1988-07-12

Konopka, Paul E.

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

Regenerating or rehabilitating catalyst or sorbent

Gas or vapor treating

208113, 208164, 502 6, 502 44, B01J 3830, B01J 3832, C10G 1118

Patent

active

047570393

ABSTRACT:
A process and apparatus for cooling FCC catalyst that provides two modes of operation for a remote heat exchanger type cooler. In the first mode the exchanger is operated in a backmix fashion where catalyst is circulated between the cooler and a disengagement zone. Regenerated catalyst is withdrawn from an outlet located close to the heat exchanger inlet so that essentially all of the heat removed by the cooler serves to reduce the temperature of catalyst entering the reaction zone. This mode of operation is particularly useful in obtaining a benefit from the cooler when processing light to moderate FCC feeds. In the second mode, the exchanger is operated in a flow through mode where hot catalyst is withdrawn from the disengaging zone cooled in the exchanger and passed into the combustion zone. The second mode of operation is used to withdraw heat from the overall regeneration process in the case of heavy FCC feedstock conversion.

REFERENCES:
patent: 2463623 (1949-03-01), Huff
patent: 2492948 (1950-01-01), Berger
patent: 2506123 (1950-05-01), Watson
patent: 2515156 (1950-07-01), Jahnig et al.
patent: 2596748 (1952-05-01), Watson et al.
patent: 2862798 (1958-12-01), McKinney
patent: 2873175 (1959-02-01), Owens
patent: 2970117 (1961-01-01), Harper
patent: 4238631 (1980-12-01), Daviduk et al.
patent: 4353812 (1982-10-01), Lomas et al.
patent: 4374750 (1983-02-01), Vickers et al.
patent: 4396531 (1983-08-01), Lomas
patent: 4405444 (1983-09-01), Zandoma
patent: 4414098 (1983-11-01), Zandoma et al.
patent: 4439533 (1984-03-01), Lomas et al.
patent: 4591425 (1986-05-01), Kovach et al.
patent: 4614726 (1986-09-01), Walters et al.

Affiliated with

Also associated with

Rating

Dual function heat withdrawal in a fluidized catalytic cracking- does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Dual function heat withdrawal in a fluidized catalytic cracking-, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dual function heat withdrawal in a fluidized catalytic cracking- will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-664477