FCCU Catalyst-high velocity vapor separator

Details FCCU Catalyst-high velocity vapor separator FCCU Catalyst-high velocity vapor separator

1984-06-04

1985-12-03

Lacey, David L.

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Fluidized bed

55343, 55349, 55457, 55458, B01J 818, B01D 4512

Patent

active

045565422

ABSTRACT:
A separator apparatus has been invented which rapidly disengages catalyst from product vapor in the reactor discharge stream of a fluid catalytic cracking (FCC) apparatus. The separator apparatus comprises a flow diverter which comprises a frustum in which are spiral channels which induce a spin on the impacting stream and are sufficiently deep to contain a layer of catalyst. A position member is attached to the frustum base and apertures in the position member allow the flow of vapor to a bore and on to cyclone separators where final catalyst-vapor separation is made. Catalyst does not pass through the apertures and remains within a cylindrical separation chamber in flow communication with a dip leg which directs the catalyst to a stripper vessel in the fluid catalytic cracking apparatus. The separator apparatus is a solution to the vibration problem experienced in the use of rough-cut cyclones.

REFERENCES:
patent: 3546854 (1970-12-01), Muller
patent: 3767566 (1973-10-01), Cartmell
patent: 4176083 (1979-11-01), McGovern et al.
patent: 4364905 (1982-12-01), Fahrig et al.
patent: 4414100 (1983-11-01), Krug et al.
Chemical Engineers' Handbook-4th ed., Perry, pp. 20-68, 20-69.

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