PREPARATION OF SILICA MOLECULAR SIEVE MEMBRANE FOR HYDROGEN SEPARATION

作     者：B.Q. Jiang, L. Gu,W.L. Zhang,Y.S. Sun and F. Lin Chemical Engineering Department of Nanchang University, Nanchang 330029, China 

出 版 物：《Acta Metallurgica Sinica(English Letters)》 (金属学报（英文版）)

年 卷 期：1999年第12卷第5期

页      面：1077-1081页

核心收录：

学科分类：081704[工学-应用化学] 08[工学] 0817[工学-化学工程与技术] 081701[工学-化学工程] 

主　　题：silica ceramic membrane inorganic composite membrane sol gel 

摘      要：A ceramic tube supported γ alumina silica inorganic composite membrane was made by modifying a ceramic tube supported γ alumina film with a silica sol using sol gel method. The thickness of the silica thin film was 750? and the pore diameter was less than 5?.The prepared silica molecular sieve membrane displayed a high hydrogen permeability and high selectivities of H 2/N 2 and H 2/CO 2 gas mixtures. This composite membrane can be used to separate high purity hydrogen of more than 99 5% from various kinds of industrial waste gas mixtures containing hydrogen.