Position:Home >> Abstract

Liquid phase oxidation and low-temperature calcination method for organic template removal from Silicalite-1 membrane and its performance
Authors: SHEN Dong, YANG, Jianhua, XIAO Wei, LI Tiansheng, L U Jinming, WANG Jinqu
Units: Institute of Adsorption and Inorganic Membrane, State Key Laboratory of Fine Chemicals,
KeyWords: Silicalite-1 membrane; liquid phase oxidation; single-gas permeation; pervaporation
ClassificationCode:TQ028. 8
year,volume(issue):pagination: 2011,31(1):61-65

Silicalite-1 zeolite membrane was prepared on macro porous α-Al2O3 support by in-situ crystallization method. Liquid phase oxidation and low-temperature calcination method was used to remove template molecules from Silicalite-1 membrane, which replaced the conventional high temperature calcination method. SEM, single gas permeation and pervaporation (PV) performance tests as a function of temperature were used to characterize the as-synthesized zeolite membrane. The results showed that the prepared membrane was typical Silicalite-1, continuous, dense and no obvious defects. The permeance of N2 is 8.16×10-7 mol/(m2•s•Pa) and the ideal selectivity of N2/i-C4H10 was up to 425 at 293 K and ideal selectivity of CO2/N2 was 2.89 at 428 K. The fluxes of Silicalite-1 membrane at 333 K is 0.83 kg/(m2•h) towards ethanol/H2O mixtures, and the corresponding separation factors was 40.3.


沈东(1981 - ),男,河北保定人,在读硕士,电话:13940908256,从事Silicalite-1沸石膜的制备、表征及其应用研究。

[1] Feng X, Huang R Y M. Liquid separation by membrane pervaporation: a review. [J].Ind Eng Chem Res, 1997, 36: 1048–1066.
[2] Coronas J, Santamaria J. Separations using zeolite membranes. [J].Sep Purif Meth, 1999, 28: 127–177.
[3] Tavolaro A, Drioli E. Zeolite membranes. [J]. Adv Mater, 1999, 11: 975–996.
[4] Tsuru T. Inorganic porous membrane for liquid phase separation. [J]. Sep Purif Meth, 2001, 30: 191–220。
[5] Julbe A, Farrusseng D, Guizard C. Porous ceramic membranes for catalytic reactors-overview and new ideas. [J]. J Membr Sci , 2001, 181: 3–20.
[6] Chen H L, Li Y S, Yang W S. Preparation of silicalite-1 membrane by solution-filling method and its alcohol extraction properties. [J]. J Memb Sci, 2007, 296: 122–130
[7] Morigami Y, Kondo M, Abe J. The first large-scale pervaporation plant using tubular-type module with zeolite NaA membrane. [J]. Sep Purif Technol, 2001, 25: 251–260.
[8] Wan C W, Ariso C T, Yeung K L. Effects of synthesis parameters on the zeolite membrane growth. [J].J Memb Sci, 2001, 191: 143–163
[9] Pachtova O, Kocirik M, Zikanova A, et al. A comparative study of template removal from silicalite-1 crystals in pyrolytic and oxidizing regimes. [J]. Micropor Mesopor Mater, 2002, 55: 285–296.
[10] Geus E R, Bekkum H van. Calcination of large MFI-type single crystals 2.crack formation and thermomechanical properties in view of the preparation of zeolite membranes. [J]. Zeolites, 1995, 15: 333–341.
[11] Henga S, Laua P P S, Yeung K L, et al. Low-temperature ozone treatment for organic template removal from zeolite membrane. [J]. J Memb Sci, 2004, 243: 69–78
[12] Teruoki T,Yuta N, Ayaka K, Takao Masuda. Preparation of hydrophilic silicalite-1 nanocrystal-layered membranes and their application to separating water from water–acetone solution. [J]. Micropor Mesopor Mater, 2008, 115: 176–183
[13] 徐如人,庞文琴. 分子筛与多孔材料化学[M] .北京: 科学出版社, 2004 : 3.
[14] Wridzer J W Bakker, Leo J P van den Broeke, Freek K, et al. Temperature Dependence of One-Component Permeation through a Silicalite-I Membrane. [J]. AIChE Journal, 1997, 43: 2203-2214
[15] Masuda T, Otani S, Tsuji T, et al. Preparation of hydrophilic and acid-proof silicalite-1 zeolite membrane and its application to selective separation of water from water solutions of concentrated acetic acid by pervaporation. [J]. Sep Purif Technol, 2003, 32: 181-189.
[16] Zhao QY  Wang JQ, Chu N B et al. Preparation of high-permeance MFI membrane with the modified secondary growth method on the macroporous α-alumina tubular support.[J]. J Membr Sci, 2008, 320: 303–309.
[17] Noack M, Kölsch P, Schäfer R et al. Molecular Sieve Membranes for Industrial Application: Problems, Progress, Solutions. [J]. Chem Eng Technol, 2002, 25 (3): 221-230.


《膜科学与技术》编辑部 Address: Bluestar building, 19 east beisanhuan road, chaoyang district, Beijing; 100029 Postal code; Telephone:010-80492417/010-80485372; Fax:010-80485372 ; Email:mkxyjs@163.com