High permeability membranes for the dehydration of low water content ethanol by pervaporation

被引：65

作者：

Namboodiri, Vasudevan V. ^{[1
]}

Vane, Leland M. ^{[1
]}

机构：

[1] US EPA, Natl Risk Management Res Lab, Cincinnati, OH 45268 USA

来源：

JOURNAL OF MEMBRANE SCIENCE | 2007年 / 306卷 / 1-2期

关键词：

pervaporation; poly(allylamine hydrochloride); dehydration; degree of hydrolysis; PVA;

D O I：

10.1016/j.memsci.2007.08.050

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Energy efficient dehydration of low water content ethanol is a challenge for the sustainable production of fuel-grade ethanol. Pervaporative membrane dehydration using a recently developed hydrophilic polymer membrane formulation consisting of a cross-linked mixture of poly(allylamine hydrochloride) and a blend of 99 and 88% hydrolyzed poly(vinyl alcohol) is found to be an attractive method. These polymeric membranes possess high water permeabilities at low feed water concentrations (<5 wt%) in ethanol compared to similar membranes in which all of the poly(vinyl alcohol) portion was 99% hydrolyzed. (C) 2007 Elsevier B.V. All rights reserved.

引用

页码：209 / 215

页数：7

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