Fluidized catalytic cracking process and apparatus

Details Fluidized catalytic cracking process and apparatus Fluidized catalytic cracking process and apparatus

1982-08-25

1983-09-27

Gantz, Delbert E.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

Solids contacting and mixing

208161, 422144, 422213, C10G 1118

Patent

active

044067763

ABSTRACT:
A process and an apparatus for the fluidized catalytic cracking of hydrocarbons are disclosed. A small vent conduit extends upward out of the flow diversion device mounted on the top of the riser reactor. This vent conduit preferably carries between about 2 and 10 percent of the vapor and catalyst leaving the top of the riser upward into the upper portion of the receiving vessel. This reduces coke deposits in the upper portion of the vessel. The remainder of the vapors and catalyst are preferably directed downward upon leaving the top of the riser.

REFERENCES:
patent: 3649522 (1972-03-01), Martin
patent: 3957443 (1976-05-01), Strickland et al.
patent: 3959117 (1976-05-01), Bunn, Jr. et al.
patent: 4051013 (1977-09-01), Strother
patent: 4194965 (1980-03-01), Billings et al.
patent: 4206174 (1980-06-01), Heffley et al.
patent: 4353812 (1982-10-01), Lomas et al.
The Oil and Gas Journal, May 15, 1972, pp. 102-110, "FCC Getting Boost from All-Riser Cracking" by C. W. Strother et al.
The Oil and Gas Journal, Oct. 8, 1973, pp. 65-70, "Gains from FCC Revival Evident Now" by J. J. Blazek.

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