Fluidized bed reactor having an integrated recycle heat exchanger
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United States of America Patent
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Jan 30, 1990
Grant Date -
N/A
app pub date -
Sep 24, 1987
filing date -
Sep 24, 1987
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A fluidized bed reactor in which a recycle heat exchanger is located adjacent the furnace of the reactor with each enclosing a fluidized bed and sharing a common wall including a plurality of water tubes. A mixture of flue gases and entrained particulate materials from the fluidized bed in the furnace are separated and the flue gases are passed to a heat recovery area and the separated particulate material to the fluidized bed in the recycle heat exchanger. The bed materials in the fluidized bed in the recycle heat exchanger are passed to the fluidized bed in the furnace. Steam is generated, superheated and reheated in the heat exchange surfaces, including water wall tubes, in the furnace, the recycle heat exchanger, and the heat recovery area.
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