Atmospheric fluidized bed combustion

Conference · Thu Dec 01 04:00:00 EST 1983 · Alternative Energy Sources; (United States)

OSTI ID:6736803

Manakar, A M

AFBC holds great promise in the utility industry as a technology for burning plentiful high-sulfur coal while greatly reducing sulfur dioxide and nitrogen oxide pollution. In an AFBC boiler, coal is burned with limestone in a bed suspended by air fed into the bottom of the boiler at atmospheric pressure. During the combustion process, the sulfur in the coal is chemically captured by the limestone and leaves the boiler in the ash, rather than going up the stack as in conventional boilers. The capture of sulfur dioxide in this process eliminates the need for flue gas scrubbing for pollution control, as required in new conventional coal-fired plants, improves overall efficiency and reduces capital costs. Due to a lower operating temperature, AFBC boiler design is less dependent on fuel and fuel-ash characteristics. This should allow power suppliers to burn a wider variety of fuel types without significant performance deterioration. The lower operating temperatures also limit the formation of nitrogen oxides.

• Research Organization: Tennessee Valley Authority, Chattanooga, TN
• OSTI ID: 6736803
• Report Number(s): CONF-831205-
• Conference Information: Journal Name: Alternative Energy Sources; (United States)
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010900 -- Coal
Lignite
& Peat-- Environmental Aspects
014000* -- Coal
Lignite
& Peat-- Combustion
500200 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR POLLUTION ABATEMENT
ATMOSPHERIC PRESSURE
BOILERS
CARBONACEOUS MATERIALS
CARBONATE ROCKS
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
COAL
COMBUSTION
COMBUSTION CONTROL
COMBUSTION KINETICS
CONTROL
ENERGY SOURCES
FLUIDIZED-BED COMBUSTION
FOSSIL FUELS
FUELS
KINETICS
LIMESTONE
MATERIALS
NITROGEN COMPOUNDS
NITROGEN OXIDES
OXIDATION
OXIDES
OXYGEN COMPOUNDS
POLLUTION ABATEMENT
PROCESS CONTROL
REACTION KINETICS
ROCKS
SEDIMENTARY ROCKS
SULFUR COMPOUNDS
SULFUR CONTENT
SULFUR DIOXIDE
SULFUR OXIDES
TEMPERATURE DEPENDENCE
THERMOCHEMICAL PROCESSES