Method of supplying coal and sulphur absorbent to a combustor and a power plant in which the method is applied
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United States of America Patent
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Aug 13, 1996
Issued Date -
N/A
app pub date -
Sep 2, 1994
filing date -
Feb 1, 1990
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention relates to a method of supplying coal and sulphur absorbent to a combustor with combustion in a fluidized bed. The coal is crushed and sorted into a fine and a coarse fraction. The fine fraction is mixed with water, possibly with oil and/or emulsifier, into a paste which is pumped into the bed of the combustor via a number of first nozzles. The coarse coal fraction is supplied to the combustor pneumatically in dry state, directly or via at least one lock hopper systems and a number of other nozzles. The invention also relates to a power plant for application of the method.
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