Preparation of Nano pore mordenite membranes for dehydration of water- UDMH mixtures
Publish place: 06th International Congress on Chemical Engineering
Publish Year: 1388
نوع سند: مقاله کنفرانسی
زبان: English
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شناسه ملی سند علمی:
ICHEC06_019
تاریخ نمایه سازی: 1 مهر 1388
Abstract:
Nano pore Mordenite membranes were prepared on the outer surface of ceramic tubular tubes via hydrothermal synthesis and evaluated for dehydration pervaporation of water unsymmetrical dimethylhydrazine UDMH mixtures. Highly water-selective mordenite membranes were prepared and the optimum reaction condition was found to be 24 h crystallization time and 170 oC crystallization temperature. Effect of gel composition on separation factor and water flux of the water-UDMH mixtures was investigated. X-ray diffraction (XRD) patterns showed that mordenite is the only zeolite material which presents in the membrane. Morphology of the supports subjected to crystallization wascharacterized by Scanning electron microscopy (SEM). In PV of the water-UDMH mixtures, the membrane exhibits a hydrophilic behavior, with a high selectivity towards water and a good flux. The best membranes had a water flux of 2.67 kg/m2.h at 27 oC. The best PV selectivity was obtained to be 264.
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Authors
Mansoor Kazemimoghadam
Iran University of Science and Technology, Narmak, Tehran, Iran M-A University of Technology,
Toraj Mohammadi
Iran University of Science and Technology, Narmak, Tehran, Iran
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