Microfabricated ZSM-5 zeolite micromembranes

被引：42

作者：

Leung, YLA ^{[1
]}

Yeung, KL ^{[1
]}

机构：

[1] Hong Kong Univ Sci & Technol, Dept Chem Engn, Kowloon, Hong Kong, Peoples R China

来源：

CHEMICAL ENGINEERING SCIENCE | 2004年 / 59卷 / 22-23期

关键词：

nanoporous material; miniature membrane; microseparator; gas permeation; gas separation;

D O I：

10.1016/j.ces.2004.08.029

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Free-standing microfabricated (MFI) zeolite micromembranes were successfully fabricated on a silicon substrate. Three zeolites including Sil-1, ZSM-5 (Si/Al = 60) and ZSM-5 (Si/Al = 40) were prepared. The zeolite micromembrane units were tested for gas permeation and separation. The micromembranes displayed an order of magnitude higher permeability (i.e., H-2 and He) compared to traditional supported zeolite membranes and possessed excellent permselectivity. Separation was conducted for a gas mixture containing hydrogen, methane and carbon dioxide. Zeolite chemistry plays a role in membrane separation. Sil-1 micromembrane selectively permeated the heavier hydrocarbon and carbon dioxide resulting in a hydrogen-enriched retentate stream, while hydrogen was concentrated at the permeate outlet of the ZSM-5 micromembrane. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：4809 / 4817

页数：9

共 40 条

[11] Highly reproducible high-flux silicalite-1 membranes: optimization of silicalite-1 membrane preparation [J].

Gora, L ;

Nishiyama, N ;

Jansen, JC ;

Kapteijn, F ;

Teplyakov, V ;

Maschmeyer, T .

SEPARATION AND PURIFICATION TECHNOLOGY, 2001, 22-3 (1-3) :223-229

[12] Chemical and biochemical microreactors [J].

Haswell, S ;

Skelton, V .

TRAC-TRENDS IN ANALYTICAL CHEMISTRY, 2000, 19 (06) :389-395

[13] Green chemistry: synthesis in micro reactors [J].

Haswell, SJ ;

Watts, P .

GREEN CHEMISTRY, 2003, 5 (02) :240-249

[14] High-flux MFI membranes [J].

Hedlund, J ;

Sterte, J ;

Anthonis, M ;

Bons, AJ ;

Carstensen, B ;

Corcoran, N ;

Cox, D ;

Deckman, H ;

De Gijnst, W ;

de Moor, PP ;

Lai, F ;

McHenry, J ;

Mortier, W ;

Reinoso, J .

MICROPOROUS AND MESOPOROUS MATERIALS, 2002, 52 (03) :179-189

[15] Low-temperature ozone treatment for organic template removal from zeolite membrane [J].

Heng, S ;

Lau, PPS ;

Yeung, KL ;

Djafer, M ;

Schrotter, JC .

JOURNAL OF MEMBRANE SCIENCE, 2004, 243 (1-2) :69-78

[16] Microchemical engineering:: Components, plant concepts user acceptance -: Part I [J].

Hessel, V ;

Löwe, H .

CHEMICAL ENGINEERING & TECHNOLOGY, 2003, 26 (01) :13-24

[17] Chemistry in microstructured reactors [J].

Jähnisch, K ;

Hessel, V ;

Löwe, H ;

Baerns, M .

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION, 2004, 43 (04) :406-446

[18] Towards a palladium micro-membrane for the water gas shift reaction: Microfabrication approach and hydrogen purification results [J].

Karnik, SV ;

Hatalis, MK ;

Kothare, MV .

JOURNAL OF MICROELECTROMECHANICAL SYSTEMS, 2003, 12 (01) :93-100

[19] Two component permeation through thin zeolite MFI membranes [J].

Keizer, K ;

Burggraaf, AJ ;

Vroon, ZAEP ;

Verweij, H .

JOURNAL OF MEMBRANE SCIENCE, 1998, 147 (02) :159-172

[20] Micro-structured reactors for gas phase reactions [J].

Kolb, G ;

Hessel, V .

CHEMICAL ENGINEERING JOURNAL, 2004, 98 (1-2) :1-38

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