Multistage circulating fluidized bed

Details Multistage circulating fluidized bed Multistage circulating fluidized bed

1995-04-17

1996-12-03

Bennett, Henry A.

Heating

With heating gas conveying, agitating, scattering or...

432 95, 432 96, 432 97, 432 99, 432100, 432 14, F27D 1900

Patent

active

055802419

ABSTRACT:
A circulating fluidized bed thermal reactor such as a boiler or gasifier, having the riser divided into a sequence of stages by a plurality of restrictions which create multiple beds dynamically suspended. Circulation occurs below transport velocity, solids distribution is substantially uniform, average bed density can be varied from near-zero to very high values, solids mobility is unrestricted, temperature is uniform. Gases follow multistage CSTR flow regime, specially suited for fuels which break down into volatiles upon heating, such as biomass, hazardous wastes and most fuels other than coal.

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