Furnaces – Process – Supplying fluid
Patent
1994-11-14
1996-07-23
Bennett, Henry A.
Furnaces
Process
Supplying fluid
110216, 110263, 110304, 122 4D, 422145, 422146, F27B 1502
Patent
active
055379419
ABSTRACT:
A fluidized bed combustion system and method in which a recycle heat exchanger is disposed integrally with the furnace of a fluidized bed combustor. The recycle heat exchanger includes a plurality of stacked sections for receiving the recycled solids and are arranged in such a manner that the recycled solids are introduced into an upper level of the sections and pass through these sections to a lower level of sections before returning to the furnace. A portion of the stacked sections contain heat exchange surfaces for removing heat from the solids therein while another portion does not. The solids in the various sections are selectively fluidized to control the flow of the solids through the sections to control the temperature of the solids accordingly.
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Bennett Henry A.
Foster Wheeler Energy Corporation
Kice Warren B.
Tinker Susanne C.
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