[1]张飞,桂田,柳波,等.高通量T型分子筛膜的制备[J].江西师范大学学报(自然科学版),2013,(06):589-593.
　ZHANG Fei,GUI Tian,LIU Bo,et al.The Synthesis of High-Flux Zeolite T Membranes[J].Journal of Jiangxi Normal University:Natural Science Edition,2013,(06):589-593.
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高通量T型分子筛膜的制备()
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《江西师范大学学报》（自然科学版）[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2013年06期
页码:
589-593
栏目:
出版日期:
2013-12-31

文章信息/Info

Title:
The Synthesis of High-Flux Zeolite T Membranes
作者:
张飞;桂田;柳波;王华梅;周荣飞;陈祥树
江西师范大学化学化工学院,江西省无机膜材料工程技术研究中心,江西南昌330022
Author(s):
ZHANG Fei；GUI Tian；LIU Bo；WANG Hua-mei；ZHOU Rong-fei；CHEN Xiang-shu
关键词:
T型分子筛膜; 氟盐; 晶种诱导法; 渗透汽化
Keywords:
zeolite T membrane; fluoride; seed-induced; pervaporation
分类号:
TQ028.8
文献标志码:
A
摘要:
采用晶种诱导水热合成法,在配比n(SiO2)∶n(Al2O3)∶n(Na2O+K2O)∶ n(NaF)∶ n(H2O)=1.00∶0.05∶0.35∶0～1.00∶35.00的溶胶中,于管状大孔陶瓷载体上合成了高通量T型分子筛膜.氟盐的添加大大促进了T型分子筛的晶化速度.在优化条件下,在大孔氧化铝和莫来石载体上合成了c轴取向的致密T型分子筛晶体层,且表现出高的渗透汽化性能.在75℃时,在氧化铝载体上合成的分子筛膜在水/乙醇质量比为10/90体系中的平均渗透通量和分离因子分别为(3.01 ±0.15)kg·m-2·h-1和2 140±100,比在莫来石载体上形成膜的平均分离因子升高31.29；,而渗透通量降低13.11；.同时研究了原料液浓度和分离温度对T型分子筛膜的渗透汽化性能的影响.
Abstract:
Zeolite T membranes were synthesized by seed-induced hydrothermal synthesis using a gel with a molar ratio of n(SiO2):n(Al2O3):n(Na2O+K2O):n(NaF):n(H2O)=1.00:0.05:0.35:0.50:35.00 on macroporous tubular ceramics supports.The addition of fluoride salts promoted the crystallization of supported zeolite T layers.Under optimized conditions,the c-oriented compact zeolite T layers were synthesized on macroporous mullite and α-Al2O3 tubes.The membranes synthesized on α-Al2O3 tubes had an average total flux of(3.01±0.14)kg·m·h and an average separation factor of 2 140±100 for the 90wt% ethanol aqueous solution at 75 ℃,which are 31.29% higher and 13.11% lower,respectively,than those of the mullite-supported membranes.The effects of operation temperature and concentration of water on the pervaporation properties of the membranes were also investigated.

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备注/Memo

备注/Memo:
科技部“863”计划(2012AA03A609)；国家国际合作重大专项(2010DFA34440)；国家自然科学基金(20906042,20966003)
更新日期/Last Update: 1900-01-01