Turbulent group reaction model of spray dryer
A turbulent group reaction model consisting of several sub-models was developed for the prediction of SO/sub 2/ removal efficiency in spray dryers. Mathematical models are developed on the basis of Eulerian-type turbulent Navier-Stokes equations for both gas and condensed phases with interphase transport considerations. The group reaction number, G, is defined as the ratio of the SO/sub 2/ absorption rate to a reference convective mass flux. This number represents the fraction of SO/sub 2/ absorbed into the lime slurry. The model is incorporated into a computer code which permits the investigation of spray dryer design concepts and operating conditions. Hence, it provides a theoretical basis for spray dryer performance optimization and scale-up. This investigation can be a practical guide to achieve high SO/sub 2/ removal efficiency in a spray dryer.
- Research Organization:
- EER Co., Irvine, CA (USA). Poseidon Research; Argonne National Lab., IL (USA); Illinois Univ., Chicago (USA). Dept. of Mechanical Engineering
- DOE Contract Number:
- W-31109-ENG-38
- OSTI ID:
- 6334522
- Report Number(s):
- CONF-8505122-4; ON: DE87011428
- Resource Relation:
- Conference: EPES '85 - energy, power and environmental systems international conference, Santa Barbara, CA, USA, 29 May 1985; Other Information: Paper copy only, copy does not permit microfiche production
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
20 FOSSIL-FUELED POWER PLANTS
01 COAL, LIGNITE, AND PEAT
FLUE GAS
DESULFURIZATION
SPRAY DRYING
EFFICIENCY
SULFUR DIOXIDE
REMOVAL
CHALCOGENIDES
CHEMICAL REACTIONS
DRYING
GASEOUS WASTES
OXIDES
OXYGEN COMPOUNDS
SULFUR COMPOUNDS
SULFUR OXIDES
WASTES
500200* - Environment
Atmospheric- Chemicals Monitoring & Transport- (-1989)
200202 - Fossil-Fueled Power Plants- Waste Management- Noxious Gas & Particulate Emissions
010800 - Coal
Lignite
& Peat- Waste Management