Effect of microstructure of MFI-type zeolite membranes on separation of xylene isomers

被引：0

作者：

O'Brien-Abraham, J. L. ^{[1
]}

Kanezashi, M. ^{[1
]}

Lin, Y. S. ^{[1
]}

机构：

[1] Arizona State Univ, Dept Chem Engn, Tempe, AZ 85069 USA

来源：

FROM ZEOLITES TO POROUS MOF MATERIALS: THE 40TH ANNIVERSARY OF INTERNATIONAL ZEOLITE CONFERENCE, PROCEEDINGS OF THE 15TH INTERNATIONAL ZEOLITE CONFERENCE | 2007年 / 170卷

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D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Effective separation of xylene isomers is possible with pervaporation through MFI-silicalite membranes. The effect of microstructural differences in silicalite membranes on the separation of xylene isomers was investigated. MFI-type zeolite membranes with random and ordered orientations were synthesized using a seeded growth method with and without organic templates. It was found that template-free random oriented membranes were capable of pure component p/o xylene separation factors of about 20 and p-xylene flux of 0.3 kg m(-2) hr(-1). The membranes with preferred orientation showed comparable flux of xylene isomers but decreased selectivities ranging from 2 to 3. These results indicate that microstructure strongly affects the ability of the membrane to perform xylene separation.

引用

页码：967 / 974

页数：8

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