비활성기체층에서의 증발과 확산에 의한 에탄올 탈수Ethanol Dehydration by Evaporation and Diffusion in an Inert GasLayer

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Ethanol dehydration of azeotropic mixture was performed by using diffusion distillation apparatus consisting of a wetted-wall column with two concentric tubes. Ethanol-water mixtures evaporated below the boiling point was separated during the diffusion through the gap filled with an inert gas. As the temperature difference between evaporation part and condensation part was increased, the total flux increased but the selectivity decreased. The effect of the annular width on the selectivity was not significant but the total flux was decreased with decreases in the annular width. Inert gas has an effect on the diffusivity of evaporated gas components. The total flux in case of helium as inert gas was larger than that in case of air but the selectivity in case of using helium was lower.
Publisher
한국화학공학회
Issue Date
1994-10
Language
Korean
Citation

KOREAN CHEMICAL ENGINEERING RESEARCH(HWAHAK KONGHAK), v.32, no.5, pp.734 - 741

ISSN
0304-128X
URI
http://hdl.handle.net/10203/66202
Appears in Collection
CBE-Journal Papers(저널논문)
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