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U.S. Department of Energy
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Fluidized bed heat exchanger with water cooled air distributor and dust hopper

Patent ·
OSTI ID:7147315

A fluidized bed heat exchanger is provided in which air is passed through a bed of particulate material containing fuel. A steam-water natural circulation system is provided for heat exchange and the housing of the heat exchanger has a water-wall type construction. Vertical in-bed heat exchange tubes are provided and the air distributor is water-cooled. A water-cooled dust hopper is provided in the housing to collect particulates from the combustion gases and separate the combustion zone from a volume within said housing in which convection heat exchange tubes are provided to extract heat from the exiting combustion gases. 4 figs.

Assignee:
Dorr-Oliver Inc., Stamford, CT (United States)
Patent Number(s):
US 4301771; A
Application Number:
PPN: US 6-165352
OSTI ID:
7147315
Country of Publication:
United States
Language:
English