Preparation of novel chabazite (CHA)-type zeolite layer on porous α-Al2O3 tube using template-free solution

被引：74

作者：

Hasegawa, Y. ^{[1
]}

Hotta, H. ^{[1
]}

Sato, K. ^{[1
]}

Nagase, T. ^{[1
]}

Mizukami, F. ^{[1
]}

机构：

[1] Natl Inst Adv Ind Sci & Technol, Res Ctr Compact Chem Proc, Miyagino Ku, Sendai, Miyagi 98308551, Japan

来源：

JOURNAL OF MEMBRANE SCIENCE | 2010年 / 347卷 / 1-2期

关键词：

Zeolite; Thin film; Separation; Dehydration; Ethanol; PERVAPORATION PERFORMANCE; PERMEATION PROPERTIES; MEMBRANES;

D O I：

10.1016/j.memsci.2009.10.024

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Dehydration is an important process in chemical industries. Zeolite membranes show excellent dehydration performance as compared to other polymeric membranes. A polycrystalline chabazite (CHA) type zeolite layer with a Si/Al ratio of 3.2 was successfully formed on a porous substrate by the secondary growth of seed particles in a solution containing strontium. Furthermore, the dehydration performance of the membrane was determined by pervaporation for ethanol solutions. For a 90 wt% ethanol solution at 348 K, the overall permeation flux and separation factor of the membrane were found to be 4.14 kg m(-2) h(-1) and 39.500, respectively. The CHA-type zeolite membrane could remove water selectively in the solution around pH 2 for 10 h. These results suggest that the CHA-type zeolite membrane can selectively remove water from many kinds of organic solvents. (C) 2009 Elsevier B.V. All rights reserved.

引用

页码：193 / 196

页数：4

共 16 条

[1]

Baerlocher Ch., 2007, ATLAS ZEOLITE STRUCT, V6th

[2]

Breck D.W.., 1974, J CHROMATOGR SCI, P55

[3] Zeolite membranes - Recent developments and progress [J].

Caro, Juergen ;

Noack, Manfred .

MICROPOROUS AND MESOPOROUS MATERIALS, 2008, 115 (03) :215-233

[4]

*CHEM SOC JAP, 2004, KAG BINR, V2, P149

[5] Zeolite T membrane: preparation, characterization, pervaporation of water/organic liquid mixtures and acid stability [J].

Cui, Y ;

Kita, H ;

Okamoto, KI .

JOURNAL OF MEMBRANE SCIENCE, 2004, 236 (01) :17-27

[6] Real-time monitoring of permeation properties through polycrystalline MFI-type zeolite membranes during pervaporation using mass-spectrometry [J].

Hasegawa, Y. ;

Kimura, K. ;

Nemoto, Y. ;

Nagase, T. ;

Kiyozumi, Y. ;

Nishide, T. ;

Mizukami, F. .

SEPARATION AND PURIFICATION TECHNOLOGY, 2008, 58 (03) :386-392

[7] Effect of temperature on the gas permeation properties of NaY-type zeolite formed on the inner surface of a porous support tube [J].

Hasegawa, Y ;

Kusakabe, K ;

Morooka, S .

CHEMICAL ENGINEERING SCIENCE, 2001, 56 (14) :4273-4281

[8]

HASEGAWA Y, J MEMBR SCI UNPUB

[9]

HASEGAWA Y, SEP PURIF T IN PRESS

[10] Application of hydroxy sodalite films as novel water selective membranes [J].

Khajavi, Sheida ;

Jansen, Jacobus C. ;

Kapteijn, Freek .

JOURNAL OF MEMBRANE SCIENCE, 2009, 326 (01) :153-160

← 1 2 →