Preparation of Nano pore mordenite membranes for dehydration of water- UDMH mixtures
عنوان مقاله: Preparation of Nano pore mordenite membranes for dehydration of water- UDMH mixtures
شناسه ملی مقاله: ICHEC06_019
منتشر شده در ششمین کنگره بین المللی مهندسی شیمی در سال 1388
شناسه ملی مقاله: ICHEC06_019
منتشر شده در ششمین کنگره بین المللی مهندسی شیمی در سال 1388
مشخصات نویسندگان مقاله:
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
خلاصه مقاله:
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
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.
کلمات کلیدی: Nano pore Zeolite membrane; Mordenite; Pervaporation; UDMH; hydrothermal synthesis
صفحه اختصاصی مقاله و دریافت فایل کامل: https://civilica.com/doc/77294/