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Title: Hybrid fluidized bed combuster

Patent ·
OSTI ID:864177

A first atmospheric bubbling fluidized bed furnace is combined with a second turbulent, circulating fluidized bed furnace to produce heat efficiently from crushed solid fuel. The bed of the second furnace receives the smaller sizes of crushed solid fuel, unreacted limestone from the first bed, and elutriated solids extracted from the flu gases of the first bed. The two-stage combustion of crushed solid fuel provides a system with an efficiency greater than available with use of a single furnace of a fluidized bed.

Research Organization:
Combustion Engineering, Inc., Windsor, CT (United States)
DOE Contract Number:
EX-76-C-01-2473
Assignee:
Combustion Engineering, Inc. (Windsor, CT)
Patent Number(s):
US 4325327
OSTI ID:
864177
Country of Publication:
United States
Language:
English