Process of combusting coal in a circulating fluidized bed

Details Process of combusting coal in a circulating fluidized bed Process of combusting coal in a circulating fluidized bed

1992-01-28

1992-11-03

Favors, Edward G.

Furnaces

Process

Burning pulverized fuel

110212, 110245, 110345, 122 4D, 422183, F23D 100

Patent

active

051598868

ABSTRACT:
Granular coal is combusted in a circulating fluidized bed system comprising a combustion chamber, a separator and a recycle line for recycling solids from the separator to the combustion chamber. Gas from carbonization is added to the oxygen-containing combustion gas withdrawn from the combustion chamber and is at least partly combusted in said combustion gas to increase the temperature of the combustion gas to about 850.degree. to 1200.degree. C. The gas from carbonization is produced by the heating of granular coal.

REFERENCES:
patent: 4815418 (1989-03-01), Maeda et al.
patent: 4843981 (1989-07-01), Goldbach et al.
patent: 5048432 (1991-09-01), Hofmann et al.

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