PERVAPORATION OF ISOMERIC BUTANOLS

被引：86

作者：

BODDEKER, KW

BENGTSON, G

PINGEL, H

机构：

[1] GKSS Research Center

来源：

JOURNAL OF MEMBRANE SCIENCE | 1990年 / 54卷 / 1-2期

关键词：

D O I：

10.1016/S0376-7388(00)82066-9

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

The pervaporation behavior of aqueous butanols and related alcohols (ethanol, benzyl alcohol) through elastomeric membranes is analyzed and compared with other relevant means of alcoholwater separation. Pervaporation, like evaporation, is governed by the thermodynamic condition of the aqueous feed solutions; however, pervaporative enrichment increases with decreasing vapor pressure (increasing boiling point) of the alcohols. Butanol diffusivity in the membrane polymer is additionally influenced by structural branching of the isomers, as are rejection by reverse osmosis and adsorption by zeolites. © 1990.

引用

页码：1 / 12

页数：12