Experimental investigation and modeling through using the solution-diffusion concept of pervaporation dehydration of ethanol and isopropanol by ceramic membranes HybSi

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• 作者：Alexander V. Klinov^a ; Roald R. Akberov^b ; ^c ; ^{roaldakberov@yahoo.com} ; Azat R. Fazlyev^a ; ^b ; Mansur I. Farakhov^a ; ^b
• 关键词：Pervaporation dehydration ; HybSi membrane ; Ethanol ; Isopropanol ; Solution-diffusion
• 刊名：Journal of Membrane Science
• 出版年：2017
• 出版时间：15 February 2017
• 年：2017
• 卷：524
• 期：Complete
• 页码：321-333
• 全文大小：1444 K
• 卷排序：524

文摘

PV dehydration of ethanol and isopropanol by HybSi membranes is studied. Mathematical model for PV through HybSi and zeolite membranes is proposed. Model uses solution-diffusion concept and new parameter: active pores fraction. Optimum thickness of selective layer of HybSi membranes is calculated to be ~50 nm. Dependence of separation factor on feed composition is found to be nonmonotonic.