METHANOL HYDROGEN SEPARATION BY CAPILLARY CONDENSATION IN INORGANIC MEMBRANES

被引：29

作者：

SPERRY, DP

FALCONER, JL

NOBLE, RD

机构：

[1] Department of Chemical Engineering, University of Colorado, Boulder

来源：

JOURNAL OF MEMBRANE SCIENCE | 1991年 / 60卷 / 2-3期

基金：

美国国家科学基金会;

关键词：

CERAMIC MEMBRANES; DIFFUSION; GAS AND VAPOR PERMEATION; GAS SEPARATION; INORGANIC MEMBRANES; SEPARATION OF HYDROGEN METHANOL; ALUMINA MEMBRANE;

D O I：

10.1016/S0376-7388(00)81533-1

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

A NaOH-poisoned gamma-alumina membrane with 4-nm diameter pores was used to separate CH3OH from a H-2/CH3OH mixture. Between 373 and 473 K, CH3OH condensed in the pores for certain pressure ranges, and was preferentially removed through the pores. Separation factors as high as 600 for CH3OH over H-2 were obtained. Capillary condensation was observed at CH3OH pressures (0.60 +/- 0.05 P(sat)) much lower than those predicted by the Kelvin equation. Causes for the deviations are indicated.

引用

页码：185 / 193

页数：9

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