Direct dry gas recovery from FCC reactor

Details Direct dry gas recovery from FCC reactor Direct dry gas recovery from FCC reactor

1993-06-08

1994-11-01

Pal, Asok

Mineral oils: processes and products

Chemical conversion of hydrocarbons

With subsequent treatment of products

208 74, 208 83, 208103, 208105, 208108, C10G 5100, C10G 5308, C10G 5506

Patent

active

053605330

ABSTRACT:
A FCC product recovery section operates at greater efficiency by recovering separate riser product streams and reactor product streams and quenching and absorbing lighter, more valuable hydrocarbon products from the reactor product stream in separate quench and absorption vessels. The quench and absorbtion vessels are intergrated with a main fractionator and gas concentration section of a typical FCC product recovery section. Heavy hydrocarbons, clarified oil and/or cycle oil absorb hydrocarbons from the reactor product stream in the quench and absorption vessels and return the absorbed products to the main fractionator while net gasoline product from the reactor product stream enter the primary absorber of the gas concentration section. This arrangement is particularly useful in increasing the product recovery capacity of an existing FCC product separation section.

REFERENCES:
patent: 3928173 (1975-12-01), James
patent: 4831203 (1989-05-01), Oxxen et al.
patent: 4988430 (1991-01-01), Sechrist et al.
patent: 5104517 (1992-04-01), Lomas et al.
patent: 5176815 (1993-01-01), Lomas

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