FCC disengagement apparatus

Details FCC disengagement apparatus FCC disengagement apparatus

1993-03-01

1994-12-06

McMahon, Timothy M.

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Fluidized bed

422141, 208153, 208157, F27B 1500

Patent

active

053708440

ABSTRACT:
A separator apparatus and method for a hydrocarbon fluidized catalytic cracking process are disclosed. The apparatus comprises a main plenum in a disengagement vessel which connects a plurality of riser cyclones in a riser catalyst separation stage to a plurality of secondary cyclones in a secondary catalyst separation stage. The cyclones in the second and each succeeding stage receive a substantially equal amount of gas from the plenum. The effluent gas is substantially prevented from leaking into the interior space of the disengagement vessel. Also disclosed is a method for retrofitting an existing plant with the plenum design to provide a more compact arrangement of the catalyst separation equipment in the disengagement vessel.

REFERENCES:
patent: 2337684 (1943-12-01), Scheineman
patent: 3724176 (1973-04-01), Vishnevsky et al.
patent: 4909993 (1990-03-01), Haddad et al.
patent: 5221301 (1993-06-01), Giuricich

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