Plug flow vented riser

Details Plug flow vented riser Plug flow vented riser

1994-05-02

1995-09-12

Warden, Robert J.

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Fluidized bed

422145, 422147, 208113, 208161, 502 44, F27B 1508, C10G 1100, B01J 2034

Patent

active

054494974

ABSTRACT:
An FCC reactor achieves greater utilization of the space within the reactor vessel by using a vented riser arrangement having an inlet opening at the bottom of a vented riser collector. The inlet opening at the bottom of the vented riser collector allows plug flow of the catalyst and hydrocarbon vapors through the upper and lower section of the reactor vessel without any substantial degradation and separation efficiency between the catalyst and the hydrocarbon vapors. This permits almost the entire tangent length of the reactor vessel to be used for the purpose of catalyst and hydrocarbon contact.

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patent: 5143874 (1992-09-01), Ross
patent: 5215720 (1993-06-01), Cetinkaya

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