Homogeneous and Heterogeneous Distillation of Ethanol-Benzene-Water System by Packed Column with Structured Packing
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概要
- 論文の詳細を見る
An experimental study is made on mass transfer in a packed distillation column with the structured packing covering homogeneous and heterogeneous liquid regions for an ethanol-benzene-water system under total reflux conditions. The vapor phase diffusion fluxes obtained in the homogeneous liquid region agree well with the correlation derived from an acetone-ethanol system by Olaño et al. (1995). On the other hand, the observed diffusion fluxes in the heterogeneous liquid region exhibit wide scattering, which may be due to the neglect of the liquid phase resistance and the assumption of three-phase equilibrium at the vapor-liquid interface in this experimental analysis.In order to examine the effect of liquid phase resistance on the separation performance in the packed distillation column, its simulation is also carried out by considering or neglecting the liquid phase resistance. The liquid phase resistance has much influence on the vapor phase concentration driving force, and then the diffusion and convective mass flux in the heterogeneous liquid region. The top concentrations and reflux flow rates predicted by considering the liquid phase resistance agree reasonably well with the experimental data in the heterogeneous liquid region. On the contrary, the effect of the liquid phase resistance on the separation performance in the homogeneous liquid region is very small as generally accepted.
- 社団法人 化学工学会の論文
著者
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ABE Yuko
Department of Chemistry and Material Technology, Kyoto Institute of Technology
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Abe Yuko
Department Of Chemical Engineering Tokyo Institute Of Technology
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SAITO Noritsuna
Department of Chemical Engineering, Tokyo Institute of Technology
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KOSUGE Hitoshi
Department of Chemical Engineering, Tokyo Institute of Technology
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ASANO Koichi
Department of Chemical Engineering, Tokyo Institute of Technology
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Kosuge H
Tokyo Inst. Technol. Tokyo Jpn
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Kosuge Hitoshi
Department Of Chemical Engineering Graduate School Of Science And Engineering Tokyo Institute Of Tec
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Asano K
Department Of Chemical Engineering Tokyo Institute Of Technology
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Asano Koichi
Department Of Chemical Engineering Tokyo Institute Of Technology
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Abe Yuko
Department Of Cellular Life Science Faculty Of Advanced Life Science Hokkaido University
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Saito Noritsuna
Department Of Chemical Engineering Tokyo Institute Of Technology
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Asano Koichi
Department of Applied Chemistry, Utsunomiya University
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