The use of a circulating fluidized bed absorber (CFBA) for control of sulfur dioxide
- Cincinnati Univ., OH (USA). Dept. of Civil and Environmental Engineering
A novel reactor, named the circulating fluidized bed absorber (CFBA), has been built and is currently under evaluation as a simple method for control (either retrofit or incorporated with a new design) of SO/sub 2/ from high sulfur coal sources. The reactor involves contacting a pulverized dry sorbent such as sodium bicarbonate, limestone, lime, or calcium hydroxide with the SO/sub 2/ laden flue gases in a fluidized bed reactor operated at high velocities. A solid-gas separator, located downstream of the reactor, concentrates unused sorbent for recycle and subsequent reuse for additional SO/sub 2/ capture. The specific advantages of the system over existing dry flue gas desulfurization systems include ease of retrofitting to existing sources, isothermal operation, applicability to a variety of solid sorbents, high utilization of solid sorbents, and minimization of combustion system disruption. Additionally, the requirement for a fabric filter for sorbent collection and additional SO/sub 2/ removal (as in typical dry injection techniques) is not necessary in the CFBA because of the high recycle potential. This paper reports on the status of this project, which consists of the design, construction, and evaluation of a pilot scale CFBA.
- OSTI ID:
- 5394869
- Report Number(s):
- CONF-881143--
- Country of Publication:
- United States
- Language:
- English
Similar Records
The use of a circulating fluidized bed absorber for control of SO{sub 2} emissions. Final report
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Related Subjects
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010800* -- Coal
Lignite
& Peat-- Waste Management
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320305 -- Energy Conservation
Consumption
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54 ENVIRONMENTAL SCIENCES
540120 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
AIR POLLUTION CONTROL
CARBONACEOUS MATERIALS
CHALCOGENIDES
CHEMICAL REACTIONS
CHEMICAL REACTORS
COAL
CONTROL
DESIGN
DESULFURIZATION
ELECTROSTATIC PRECIPITATORS
ENERGY SOURCES
EQUIPMENT
FLUE GAS
FLUIDIZED BEDS
FOSSIL FUELS
FUELS
FUNCTIONAL MODELS
GASEOUS WASTES
ISOTHERMAL PROCESSES
MATERIALS
OXIDES
OXYGEN COMPOUNDS
PILOT PLANTS
POLLUTION CONTROL
POLLUTION CONTROL EQUIPMENT
RECYCLING
SULFUR COMPOUNDS
SULFUR CONTENT
SULFUR DIOXIDE
SULFUR OXIDES
WASTES