PERMEATION RATES OF AQUEOUS ALCOHOL-SOLUTIONS IN PERVAPORATION THROUGH NAFION MEMBRANES

被引：31
作者：
KATO, S
NAGAHAMA, K
NORITOMI, H
ASAI, H
机构：
[1] TOKYO METROPOLITAN UNIV,FAC TECHNOL,DEPT IND CHEM,HACHIOJI,TOKYO 19203,JAPAN
[2] DAIKIN IND LTD,SAKAI PLANT,MECH ENGN LAB,SAKAI,OSAKA 591,JAPAN
来源：
JOURNAL OF MEMBRANE SCIENCE | 1992年 / 72卷 / 01期
关键词：
DIFFUSION; LIQUID PERMEABILITY AND SEPARATIONS; ORGANIC SEPARATIONS; PERVAPORATION; FREE VOLUME;
D O I：
10.1016/0376-7388(92)80054-N
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Permeation data of methanol-water and 1-propanol-water mixtures in pervaporation (PV) through Nafion membranes with (CH3)3NH+ as counter ion were obtained. These data showed that water preferentially permeated in PV in spite of the preferential sorption of alcohols. A new permeation model was proposed based on the free volume theory. The model accounted for the effects of solubility and molecular interactions, such as permeant-polymer interactions, on the permeability. Not only the PV data of methanol-water-Nafion and 1-propanol-water-Nafion systems but also those of ethanol-water-Nafion and isopropanol-water-Nafion systems listed in the literature supported the validity of the present model.
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页码：31 / 41
页数：11
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