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

[1] Microfabricated packed-bed reactor for phosgene synthesis [J].

Ajmera, SK ;

Losey, MW ;

Jensen, KF ;

Schmidt, MA .

AICHE JOURNAL, 2001, 47 (07) :1639-1647

[2] An investigation of the relationship between microstructure and permeation properties of ZSM-5 membranes [J].

Au, LTY ;

Yeung, KL .

JOURNAL OF MEMBRANE SCIENCE, 2001, 194 (01) :33-55

[3] Permeation characteristics of a metal-supported silicalite-1 zeolite membrane [J].

Bakker, WJW ;

Kapteijn, F ;

Poppe, J ;

Moulijn, JA .

JOURNAL OF MEMBRANE SCIENCE, 1996, 117 (1-2) :57-78

[4] Elemental fluorine - Part 13. Gas-liquid thin film microreactors for selective direct fluorination [J].

Chambers, RD ;

Holling, D ;

Spink, RCH ;

Sandford, G .

LAB ON A CHIP, 2001, 1 (02) :132-137

[5] Separations of C4 and C6 isomers in ZSM-5 tubular membranes [J].

Coronas, J ;

Noble, RD ;

Falconer, JL .

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 1998, 37 (01) :166-176

[6] Characterization and permeation properties of ZSM-5 tubular membranes [J].

Coronas, J ;

Falconer, JL ;

Noble, RD .

AICHE JOURNAL, 1997, 43 (07) :1797-1812

[7] Fabrication of microreactors for dehydrogenation of cyclohexane to benzene [J].

Cui, TH ;

Fang, J ;

Zheng, AP ;

Jones, F ;

Reppond, A .

SENSORS AND ACTUATORS B-CHEMICAL, 2000, 71 (03) :228-231

[8] Template-removal-associated microstructural development of porous-ceramic-supported MFI zeolite membranes [J].

Dong, JH ;

Lin, YS ;

Hu, MZC ;

Peascoe, RA ;

Payzant, EA .

MICROPOROUS AND MESOPOROUS MATERIALS, 2000, 34 (03) :241-253

[9] Technology and applications of microengineered reactors [J].

Gavriilidis, A ;

Angeli, P ;

Cao, E ;

Yeong, KK ;

Wan, YSS .

CHEMICAL ENGINEERING RESEARCH & DESIGN, 2002, 80 (A1) :3-30

[10] CALCINATION OF LARGE MFI-TYPE SINGLE-CRYSTALS .2. CRACK FORMATION AND THERMOMECHANICAL PROPERTIES IN VIEW OF THE PREPARATION OF ZEOLITE MEMBRANES [J].

GEUS, ER ;

VANBEKKUM, H .

ZEOLITES, 1995, 15 (04) :333-341

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