Furnaces – Process
Patent
1987-07-31
1988-10-11
Favors, Edward G.
Furnaces
Process
110245, 110347, 122 4D, 16510416, F23B 700
Patent
active
047762888
ABSTRACT:
Disclosed is a process for improving the solids distribution in a circulating fluidized bed system. In the invention, hot ash from the system and fresh carbonaceous fuel are mixed in a chamber which is fluidized so as to form a fluidization zone wherein the heavier material is concentrated and a second fluidization zone which consists predominantly of fines at least a portion of which is separated from the heavier material. This zone separation is facilitated in part by maintaining different gas-mass flow rates so as to form a plug of heavier material. At least a portion of the fine material is then transferred into the reactor while the coarse material is further processed.
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Beisswenger Hans
Wechsler Alexander T.
Favors Edward G.
Metallgesellschaft Aktiengesellschaft
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