Plant for the combustion of impure solid fuel

Details Plant for the combustion of impure solid fuel Plant for the combustion of impure solid fuel

1982-02-09

1983-12-20

Favors, Edward G.

Furnaces

With control means responsive to a sensed condition

Feed control

110245, 110263, F23H 518

Patent

active

044210361

ABSTRACT:
In a fluidized bed plant for the combustion of impure solid fuel in the presence of an absorbent material which absorbs and neutralizes the impurities, in particular sulfur, the supply of absorbent material to the fluidized bed is controlled in dependence on the impurity content in the exhaust gases leaving the fluidized bed. To achieve a rapid control, at least part of the absorbent material is supplied to the fluidized bed in a finely ground state. The bed material may consist of coarse-grained absorbent material or a chemically inactive material, or a mixture of these. Coarse-grained absorbent material which is discharged from the fluidized bed can have its particle size reduced and be passed back to the fluidized bed.

REFERENCES:
patent: 3693557 (1972-09-01), Makuch
patent: 4177741 (1979-12-01), Stewart et al.
patent: 4259911 (1981-04-01), Jones
patent: 4262610 (1981-04-01), Hein et al.
patent: 4279207 (1981-07-01), Wormser
patent: 4329324 (1982-05-01), Jones

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