Mass and heat transfer in ternary distillation of methanol-ethanol-water systems by a wettec-wall column.
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概要
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Experimental study of vapor-phase sensible heat and mass fluxes in ternary distillation of the methanol-ethanol-water system was made with a wetted-wall column at total reflux conditions. From heat and mass balances for the liquid film, a theoretical expression was derived for the interfacial velocity caused by mass fluxes. The interfacial velocity was shown to be a function of the sensible heat and diffusion fluxes. Observed vapor-phase sensible heat fluxes showed good agreement with the theoretical values obtained by laminar flow theories. Observed vapor-phase diffusion fluxes obtained from mass flux measurements also showed good agreement with the theoretical values, but a poor correlation was obtained for vapor-phase mass fluxes. Observed interfacial velocities were compared with the calculated values.
- 公益社団法人 化学工学会の論文
著者
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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 Koichi
Department of Applied Chemistry, Utsunomiya University
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