کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10390066 | 884449 | 2005 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Cordierite-supported ZSM-5 membrane: Preparation and pervaporation properties in the dehydration of water-alcohol mixture
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
تصفیه و جداسازی
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
The ZSM-5 type membrane was prepared on a flat cordierite support by low temperature chemical vapor deposition (LTCVD) of a silica layer, followed by an in situ crystallization in vapor phase. The membrane obtained consisted of loosely-packed zeolite crystals in the pores of the support. The silica-alumina ratio of the membrane zeolite layer determined by EDX was low, indicating a hydrophilic nature of the membrane. The performances of the ZSM-5 membrane in the separation of water-alcohol mixtures by pervaporation were studied and discussed with respect to the membrane structure and the alcohol nature. The membrane showed very high selectivity towards water in the water-ethanol mixture. The transport mechanism of the membrane has also been discussed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Separation and Purification Technology - Volume 44, Issue 3, August 2005, Pages 266-270
Journal: Separation and Purification Technology - Volume 44, Issue 3, August 2005, Pages 266-270
نویسندگان
Lizhi Zhou, Tao Wang, Quang Trong Nguyen, Jun Li, Yingcai Long, Zhenghua Ping,