Method in fluidized bed combustion
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United States of America Patent
Stats
-
Aug 29, 1989
Grant Date -
N/A
app pub date -
Aug 26, 1987
filing date -
Aug 28, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Method in combusting solid fuel in a first fluidized bed (11) and a second fluidized bed (12) located laterally of the first bed, said beds being mutually separated but communicating with each other. Fuel particles are transferred from the first bed to the second bed. The first bed is operated substoichiometrically and the second bed is operated with a large excess of air. Flue gas from the first bed is diverted in a common freeboard over the beds to be directed in counterflow towards the flue gas from the second bed. Heat power is recovered solely from the second bed.
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