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Pervaporation Characteristics of Water/Ethanol Mixture through Hydrophilic Zeolite Membranes  

Ahn, Hyoseong (Department of Chemical Engineering, College of Engineering, Chungnam National University)
Lee, Hyeryeon (Department of Chemical Engineering, College of Engineering, Chungnam National University)
Lee, Yongtaek (Department of Chemical Engineering, College of Engineering, Chungnam National University)
Publication Information
Applied Chemistry for Engineering / v.16, no.1, 2005 , pp. 61-67 More about this Journal
Abstract
Zeolite membranes show better thermal, mechanical, chemical stabilities than polymer membranes. Water was separated from water/ethanol mixtures by pervaporation using the NaA and the NaY zeolite membranes synthesized in our laboratory. The effects of concentration of ethanol at the feed side and temperature were studied on the permeation flux and separation factor of water. The separation factors obtained with the NaA zeolite membrane was found to be 1000 times higher than those obtained with the NaY. However, the water flux through the NaA zeolite membrane was observed to be lower than 1/2 of that through the NaY zeolite membrane.
Keywords
zeolite membrane; NaA zeolite; NaY zeolite; water/ethanol; pervaporation;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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