Effective mixing processes for SOx, sorbent, and coal-combustion products. Final report, October 1984-July 1986
The report describes an evaluation of the mixing of jets of calcium-based sorbents injected into large wall-fired coal-burning utility-boiler furnaces for sulfur dioxide (SO/sub 2/) emission control. Pilot scale combustion experiments at 1.41- and 24-MW thermal input tested the dependence of overall sulfur removal efficiency on injection parameters and sorbent type. Several computational and empirical models of jet behavior were adapted for use in sorbent-injection system design. An effective injection-system design methodology is based on a hierarchy of design and interpretation procedures. The methodology includes: (1) use of simple empirical jet relationships to provide preliminary estimates for injection-system parameters (number, size, and velocity of jets); (2) isothermal physical flow modeling of the boiler to evaluate and optimize injection system mixing parameters; and (3) coupling of jet mixing results with experimental sorbent sulfation data, or sulfation calculations, to predict the impact of mixing on overall SO/sub 2/ capture.
- Research Organization:
- Energy and Environmental Research Corp., Irvine, CA (USA)
- OSTI ID:
- 6373860
- Report Number(s):
- PB-87-188892/XAB
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
54 ENVIRONMENTAL SCIENCES
01 COAL, LIGNITE, AND PEAT
BOILERS
FLUE GAS
COAL
COMBUSTION PRODUCTS
AIR POLLUTION ABATEMENT
DESULFURIZATION
FOSSIL-FUEL POWER PLANTS
SULFUR OXIDES
REMOVAL
MATHEMATICAL MODELS
SAMPLING
SORPTION
CARBONACEOUS MATERIALS
CHALCOGENIDES
CHEMICAL REACTIONS
ENERGY SOURCES
FOSSIL FUELS
FUELS
GASEOUS WASTES
MATERIALS
OXIDES
OXYGEN COMPOUNDS
POLLUTION ABATEMENT
POWER PLANTS
SULFUR COMPOUNDS
THERMAL POWER PLANTS
WASTES
200202* - Fossil-Fueled Power Plants- Waste Management- Noxious Gas & Particulate Emissions
500200 - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)
010900 - Coal
Lignite
& Peat- Environmental Aspects