Upper feed injector for fluidized catalytic cracking unit

Details Upper feed injector for fluidized catalytic cracking unit Upper feed injector for fluidized catalytic cracking unit

1991-05-16

1996-07-30

Warden, Robert J.

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Fluidized bed

422140, 422147, F27B 1508

Patent

active

055408931

ABSTRACT:
A hydrocarbon feed pipe in a fluid catalytic cracking system includes a nozzle positioned in the upper section of the riser reactor pipe. This arrangement, together with one or more feed pipes at conventional locations in the riser reactor pipe, allows for feed segregation or feed splitting processes whereby different feed flow rates and/or compositions are fed to different points in the riser reactor pipe. Feed splitting/segregating processes provide for improved product yields and product properties.

REFERENCES:
patent: 3152065 (1964-10-01), Sharp et al.
patent: 3607730 (1971-09-01), Pfeiffer
patent: 4284401 (1981-08-01), Tatebayashi et al.
patent: 4725410 (1988-02-01), Krug et al.

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