Separation of gas and organic/water mixtures by MFI type zeolite membranes synthesized in a flow system |
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| Authors: | Belma Soydaş Özlem Dede Ali Çulfaz Halil Kalıpçılar |
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| Affiliation: | 1. Institute for Sustainability and Innovation, College of Engineering and Science, Victoria University, Werribee Campus, PO Box 14428, Melbourne VIC 8001, Australia;2. State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing University of Technology, Nanjing, Jiangsu 210009, PR China;3. CSIRO Materials Science and Engineering, Private Bag 10, Clayton South VIC 3169, Australia;4. Centre for Water Management & Reuse, University of South Australia, Adelaide SA 5095, Australia;5. School for Engineering of Matter, Transport and Energy, Arizona State University, Tempe AZ 85287, USA;6. CSIRO Process Science and Engineering, Private Bag 33, Clayton South VIC 3169, Australia;1. Graduate School of Engineering, Gifu University, 1-1 Yanagido, Gifu, Gifu 501-1193, Japan;2. Research Institute for Chemical Process Technology, National Institute of Advanced Industrial Science and Technology (AIST), AIST Central 5, 1-1-1 Higashi, Tsukuba, Ibaraki 305-8565, Japan;3. Optical Communications Laboratory, Sumitomo Electric Industries, Ltd., 1, Taya-cho, Sakae-ku, Yokohama, Kanagawa 244-8588, Japan;4. Faculty of Engineering, Gifu University, 1-1 Yanagido, Gifu, Gifu 501-1193, Japan;5. Life Science Research Center, Gifu University, 1-1 Yanagido, Gifu, Gifu 501-1193, Japan;1. Department of Chemical Engineering, Sahand University of Technology, Tabriz, Iran;2. Environmental Engineering Research Center, Sahand University of Technology, Tabriz, Iran;3. Department of Chemical Engineering, Tarbiat Modares University, Tehran, Iran;4. Department of Gas, Research Institute of Petroleum Industry (RIPI), Tehran, Iran;1. State-Province Joint Engineering Laboratory of Zeolite Membrane Materials, Institute of Advanced Materials, College of Chemistry and Chemical Engineering, Jiangxi Normal University, Nanchang 330022, China;2. Graduate School of Science and Technology for Innovation, Graduate School Science and Engineering, Yamaguchi University, Ube 755-8611, Japan |
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| Abstract: | MFI type zeolite membranes were synthesized in a recirculating flow system at 95 °C where the synthesis solution was flown over the tubular α-alumina supports. The performance of the membranes for the separation of binary gas mixtures and alcohol/water liquid mixtures was investigated. A membrane synthesized by two consecutive synthesis steps had a separation selectivity of 15 and 11 for equimolar mixtures of n-C4H10/CH4 and n-C4H10/N2 at 200 °C, respectively. The membrane selectively permeated large n-C4H10 over small CH4 and N2, suggesting that the separation is essentially adsorption-based and the membrane has few nonselective intercrystalline pores. The selectivities in the pervaporation separation of 5% ethanol/95% water mixture were 43 and 23 with permeate fluxes of 0.2 and 1.9 kg/m2 h at 25 and 85 °C, respectively. The separation performance of membranes showed that MFI type membranes prepared in a recirculating flow system can be used both in the separation of gas and liquid mixtures. |
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