1Faculty of Chemical Engineering, Isfahan University of Technology, P.O. Box 84156-83111 Isfahan, I.R. IRAN
2Department of Chemical and Biochemical Engineering, Faculty of Engineering, The University of Western Ontario (UWO), Ontario, CANADA
MFI-type zeolite membranes (ZSM-5) were prepared on α-alumina tubular supports and tested for separation of H2/CO mixtures. The effect of pressure and temperature on H2 and CO flows and selectivity was investigated. The best results in this work were obtained with a ZSM-5 membrane prepared over a porous α-alumina tube seeded with zeolite nanocrystals synthesized with microwave technique. In this case the H2 permeance was obtained 2.8 × 10-6 mol/ (m2.s.Pa) with a H2/CO ideal selectivity of 4.9 at 373 K. The permeation results of four gas (H2, CO, N2, CH4) on the synthesized membrane were also investigated.
 Sebastian V., KumakiriI., Bredesen R., Menendez M., Zeolite Membrane for CO2 Removal: Operating at High Pressure, Journal of Membrane Science, 292, p. 92 (2007).
 Cheng Y., Wang L., Sheng Li J., Chuan Yang Y., Sun X., Preparation and Characterization of Nanosized ZSM-5 Zeolites in the Absence of Organic Template, Materials Letters, 59, p. 3427 (2005).
 Mabande G.T.P., Pradhan G., Schwieger W., Hanebuth M., Dittmeyer R., Selvam T., Zampieri A., Baser H., Herrmann R., A study of Silicalite-1 and Al-ZSM-5 Membrane Synthesis on Stainless Steel Supports, Microporous and Mesoporous Materials, 75, p. 209 (2004).
 Kazemian H., Farhadi F., Design and Manufacturing of a Laboratory Microwave Oven by using a Kitchen Microwave Oven, Iranian Patent no. 41171 (2007).
 Au L.T.Y, Yeung K.L., An Investigation of the Relationship Between Microstructure and Permeation Properties of ZSM-5 Membranes, Journal of Membrane Science, 194, p. 33 (2001).
 Heng S., Lau P., Yeung K., Djafer M., Schrotter J., Low Temperature Ozone Treatment for Organic Template Removal from Zeolite Membrane. Journal of Membrane Science, 243, p. 69 (2004).
 Dong J, Lin Y.S., Hu M.Z.-C., Peascoe R.A., Payzant E.A., Template-Removal-Associated Microstructural Development of Porous-Ceramic-Supported MFI Zeolite Membranes, Micropor. Mesopor. Mater, 34, p. 241 (2000).
 Hedlund J., Noak M., Kolsch P., Creaser D., Caro J., Sterte J., ZSM-5 Membranes Synthesized without Organic Templates Using a Seeding Technique. Journal of Membrane Science, 159, p. 263 (1999).
 Lesthaeghe D., Vansteenkiste P., Verstraelen T., Ghysels A., Okamoto K., Kirschhock C.E.A., Martens J.A., Speybroeck V.V., Waroquier M., MFI Fingerprint: How Pentasil-Induced IR Bands Shift During Zeolite Nanogrowth , J. Phys. Chem.,112, p. 9186 (2008).