Effects of aluminum content on the separation properties of MFI membranes

被引：36

作者：

Jareman, F ^{[1
]}

Hedlund, J ^{[1
]}

Sterte, J ^{[1
]}

机构：

[1] Lulea Univ Technol, Div Chem Technol, S-97187 Lulea, Sweden

来源：

SEPARATION AND PURIFICATION TECHNOLOGY | 2003年 / 32卷 / 1-3期

关键词：

MR; membrane; defects; butane; hexane;

D O I：

10.1016/S1383-5866(03)00029-7

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

MFI membranes with almost identical film thickness and defect distribution but different Si/Al ratio were evaluated by separation of butane and hexane isomers. Film thickness was evaluated by SEM and defect distribution by porosimetry. When the temperature was varied, the membranes showed similar separation trends for butanes, but clear differences were observed for hexane separation. The hexane separation factor varied with temperature for the silicalite-1 membrane but was constant for the ZSM-5 membrane. It is believed that this difference may be a result of differences in adsorption properties. (C) 2003 Elsevier Science B.V. All rights reserved.

引用

页码：159 / 163

页数：5

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