Modeling of SO/sub 2/ removal in spray-dryer flue-gas desulfurization system

Conference · Tue Dec 31 23:00:00 EST 1985

OSTI ID:5579871

Damle, A S; Sparks, L E

This paper presents a mathematical model of the SO/sub 2/ removal process in a spray-dryer flue-gas desulfurization system. Simultaneous evaporation of a slurry 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 parameters which need to be estimated or determined from experimental data. The model predictions of the effects of major parameters, such as approach to saturation and stoichiometric ratio on the SO/sub 2/ removal efficiency, follow observed trends. Comparison of the model predictions with one set of pilot-plant data shows very good agreement.

• OSTI ID: 5579871
• Report Number(s): CONF-860447-
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400201 -- Chemical & Physicochemical Properties
500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
ABSORPTION
ABSTRACTS
AIR POLLUTION ABATEMENT
CARBONATE ROCKS
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
DESULFURIZATION
DISPERSIONS
DISSOLUTION
DOCUMENT TYPES
DROPLETS
DRYING
ENERGY TRANSFER
ENVIRONMENTAL POLICY
EVAPORATION
FLUE GAS
FUNCTIONAL MODELS
GASEOUS WASTES
GOVERNMENT POLICIES
HEAT TRANSFER
KINETICS
LEADING ABSTRACT
LIMESTONE
MASS TRANSFER
MATHEMATICAL MODELS
MEETINGS
MIXTURES
NATIONAL ORGANIZATIONS
OXIDES
OXYGEN COMPOUNDS
PARTICLES
PHASE TRANSFORMATIONS
PILOT PLANTS
POLLUTION ABATEMENT
REACTION KINETICS
REMOVAL
ROCKS
SATURATION
SEDIMENTARY ROCKS
SLURRIES
SPRAY DRYING
STOICHIOMETRY
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
SUSPENSIONS
US EPA
US ORGANIZATIONS
WASTES