Solids feed system and method for feeding fluidized beds

Details Solids feed system and method for feeding fluidized beds Solids feed system and method for feeding fluidized beds

1992-11-16

1994-07-05

Gromada, Denise

Drying and gas or vapor contact with solids

Process

With fluid current conveying or suspension of treated material

34591, 110106, 110245, F26B 308

Patent

active

053256034

ABSTRACT:
The invention provides an improved method and apparatus for feeding solids to a fluidized bed reactor. A back pressure control valve regulates the pressure drop between the pressure above a solids column in a standpipe and the pressure in the reactor. Solids are fed from the standpipe via a conduit without valve means, the conduit contains a bend of an angle greater than the angle of repose of the solids.

REFERENCES:
patent: 3951081 (1976-04-01), Martin et al.
patent: 4059060 (1977-11-01), Grambs
patent: 4332207 (1982-06-01), Blaskowski et al.
patent: 4349331 (1982-09-01), Floter
patent: 4387654 (1983-06-01), Binasik et al.
patent: 4419941 (1983-12-01), Santalla
patent: 4707350 (1987-11-01), Bandequin et al.
patent: 4716856 (1988-01-01), Beisswenger et al.

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