Method and apparatus for recovering heat in a fluidized bed reac

Details Method and apparatus for recovering heat in a fluidized bed reac Method and apparatus for recovering heat in a fluidized bed reac

1994-12-06

1998-06-30

Tran, Hien

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

Fluidized bed

422139, 422141, 422143, 422147, F27B 1514, F27B 1516

Patent

active

057729697

ABSTRACT:
A method and apparatus for recovering heat from solid particles in a fluidized bed reactor, utilize a heat transfer chamber, having heat transfer surfaces disposed therein. Hot solid particles are continuously fed into the heat transfer chamber and gas is introduced into and discharged from the heat transfer chamber. Gas is introduced into the heat transfer chamber for controlling the flow of solid particles therein. The heat transfer chamber is divided into at least one heat transfer zone and at least one solid particle transport zone, by providing more heat transfer surfaces in the heat transfer zones (e.g. 90% or more of the total heat transfer area) than in the solid particle transport zones. The heat transfer is controlled by introducing separately controlled flows of gas into the heat transfer zones and the solid particle transport zones.

REFERENCES:
patent: 3807090 (1974-04-01), Moss
patent: 5014652 (1991-05-01), Hyldgaard
patent: 5069170 (1991-12-01), Gorzegno et al.
patent: 5140950 (1992-08-01), Abdulally
patent: 5141708 (1992-08-01), Campbell, Jr. et al.
patent: 5205350 (1993-04-01), Hirsch et al.
patent: 5275788 (1994-01-01), Stoholm
patent: 5281398 (1994-01-01), Hyppanen et al.

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