Modeling of SO/sub 2/ removal in spray-dryer flue-gas desulfurization system. Final report, November 1983-June 1984
The report presents a comprehensive mathematical model of the SO/sub 2/ removal process in a spray-dryer flue-gas desulfurization system. Simultaneous evaporation of a sorbent droplet and absorption/reaction of SO/sub 2/ in the droplet are described by the corresponding heat- and mass-transfer rate relations. Dissolution kinetics of lime particles within a slurry droplet is included in determining the overall SO/sub 2/ removal rate. The model identifies several important parameters that need to be estimated or determined from experimental data. The report also includes a computer program, SPRAYMOD, written in Basic language, to predict SO/sub 2/ removal in a spray dryer, based on the model developed. The program is user oriented and easy to use. The contribution of particulate collection equipment, a baghouse and an electrostatic precipitator, toward overall SO/sub 2/ removal is also discussed.
- Research Organization:
- Research Triangle Inst., Durham, NC (USA)
- OSTI ID:
- 6089045
- Report Number(s):
- PB-86-136165/XAB; REPT-47U-2247-4
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
010800* -- Coal
Lignite
& Peat-- Waste Management
500200 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ABSORPTION
BAGHOUSES
CHALCOGENIDES
CHEMICAL REACTIONS
COMBUSTION PRODUCTS
DESULFURIZATION
DRYING
ELECTROSTATIC PRECIPITATORS
ENERGY TRANSFER
EQUIPMENT
FLUE GAS
GASEOUS WASTES
HEAT TRANSFER
INDUSTRIAL WASTES
KINETICS
MASS TRANSFER
MATHEMATICAL MODELS
OXIDES
OXYGEN COMPOUNDS
POLLUTION CONTROL EQUIPMENT
REACTION KINETICS
REMOVAL
SPRAY DRYING
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
WASTES