Process of combusting coal in a circulating fluidized bed
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United States of America Patent
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Nov 3, 1992
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N/A
app pub date -
Jan 28, 1992
filing date -
Feb 1, 1991
priority date (Note) -
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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 Gas from carbonization is added to the oxygen-containing combustion gas withdrawn from the combustion chamber and is at least partly combusted in said combustion gas to increase the temperature of the combustion gas to about 850.degree.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.
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