Preparation and characterization of nanoporous ceramic membranes for separation of water from ethanol

被引：6
作者：
Nosratinia, Ferial [1 ]
Ghahremani, Hazhir [1 ]
Shirazian, Saeed [2 ]
机构：
[1] Islamic Azad Univ, Dept Chem Engn, South Tehran Branch, Tehran, Iran
[2] RahNegar Shimi Engineers Corp, Tehran, Iran
来源：
DESALINATION AND WATER TREATMENT | 2015年 / 54卷 / 06期
关键词：
Nanoporous; Ethanol; Pervaporation; Ceramic membrane; Mass transfer; Dehydration; ZEOLITE NAA MEMBRANES; INNER-SIDE; TEMPLATE; SUPPORTS; SYSTEM;
D O I：
10.1080/19443994.2014.903866
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
In this work, high performance nanoporous Linde Type A (LTA)-type zeolite membranes were synthesized via secondary growth method. The used substrate for growing membrane layer was porous mullite. To synthesize defect-free zeolite film on porous mullite discs, synthesis duration was optimized for hydrothermal treatment. The morphology and structure of synthesized zeolite membranes were characterized by scanning electron microscopy and X-ray diffraction. The defect-free LTA-type zeolite membranes were obtained at synthesis duration of 3 h and synthesis temperature of 100 degrees C. The separation performance of synthesized LTA-type zeolite membranes were evaluated in dehydration of ethanol using pervaporation process. Influence of feed composition on separation performance of LTA membranes was also investigated. The best membranes showed a separation factor of 9,400 and total flux of 9.8 kg m(-2) h(-1) for dehydration of 10:90 (wt.%) water/ethanol mixture.
引用
收藏
页码：1550 / 1555
页数：6
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