Atmospheric fluidized bed combustor

Patent · Tue Nov 13 04:00:00 EST 1984

OSTI ID:5995299

Mah, C S

A fluidized bed combustion system for burning fuel particles, such as coal. The system includes a housing defining a first combustion region. An endless, flexible, perforate belt is shiftably mounted in the housing for supporting coal particles of relatively large size. A blower below the belt creates fluidized air which entrains smaller coal particles in a fluidized bed above the larger coal particles. The combustion gases arising due to combustion of the coal particles passes through a secondary combustion region in which coal fines are burned. The combustion gases continue upwardly through a scrubber in which limestone particles are entrained in the combustion gases to strip sulfides therefrom. The limestone particles are regenerated by a cyclone separator while the combustion gases travel through a passage containing boilers or other heat exchangers, whereby the heat from the combustion gases is transferred to fluids in the boilers.

• Assignee: NOR-85-07058; EDB-85-061368
• Patent Number(s): US 4481892
• OSTI ID: 5995299
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
421000* -- Engineering-- Combustion Systems
424000 -- Engineering-- Pollution Control Equipment-- (1980-1989)
AIR POLLUTION ABATEMENT
BOILERS
CARBONACEOUS MATERIALS
COAL
COMBUSTORS
CONCENTRATORS
COVERINGS
CYCLONE SEPARATORS
DESIGN
ENERGY SOURCES
EQUIPMENT
FLUIDIZED-BED COMBUSTORS
FOSSIL FUELS
FUEL FEEDING SYSTEMS
FUEL SYSTEMS
FUELS
HEAT EXCHANGERS
INERTIAL SEPARATORS
MATERIALS
POLLUTION ABATEMENT
POLLUTION CONTROL EQUIPMENT
SCRUBBERS
SEPARATION EQUIPMENT