Journal of Korean Society for Atmospheric Environment
- 제15권E호
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- Pages.17-28
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- 1999
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- 1598-7922(pISSN)
A Study on Gas-Liquid Contact in a Perforated Plate-Type $SO_2$ Absorber at Flooding Conditions
- Han, Seung-Ho (TS Corporation R&D Center) ;
- Soowoo Kwon (TS Corporation R&D Center) ;
- Sangwon Jung (TS Corporation R&D Center) ;
- Jaehyuk Junk (TS Corporation R&D Center) ;
- Yang, Chang-Ryung (Dept. of Chemical Engineering, University of Seoul) ;
- Carl Weilert (Burns & McDonnell International, Inc.)
- 발행 : 1999.11.01
초록
Gas-liquid contact tests above a perforated-plate were conducted with air and water at flooding gas-flow conditions in order to study two-phase flow characteristics in a limestone-gypsum SO2 absorber. Gas layers were in the form of air pockets and confined to the limited areas around each duct pipe, while the remaining tary area were in the wet condition. The liquid above the tray was always in the flooded and even fluidized conditions at gas flows over the range studied, although vigorous bubbly or churn-turbulent two-phase regime was only observed in the immediate vicinity of the gas hole exit at low gas loads. The froth zone was extremely active to provide intimate contact between gas and liquid so that the necessary mass transfer operation can take place, which is the primary purpose of high-performance SO2 absorbers. Howefer, the absorber