Turbulent group reaction model of spray dryer

Conference · Thu Jan 01 04:00:00 EST 1987

OSTI ID:6334522

Ma, H K; Huang, H S; Chiu, H H

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
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010800 -- Coal
Lignite
& Peat-- Waste Management
20 FOSSIL-FUELED POWER PLANTS
200202 -- Fossil-Fueled Power Plants-- Waste Management-- Noxious Gas & Particulate Emissions
500200* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
CHALCOGENIDES
CHEMICAL REACTIONS
DESULFURIZATION
DRYING
EFFICIENCY
FLUE GAS
GASEOUS WASTES
OXIDES
OXYGEN COMPOUNDS
REMOVAL
SPRAY DRYING
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
WASTES