首页 | 本学科首页   官方微博 | 高级检索  
     


Synthesis and pervaporation performance of high-reproducibility silicalite-1 membranes
Authors:HongLiang Chen  YanShuo Li  GuangQi Zhu  Jie Liu  WeiShen Yang
Affiliation:(1) Key Laboratory of Eco-remediation of Contaminated Environment and Resources Reuse of Ministry of Education, Shenyang University, Shenyang, 110044, China;(2) State Key Laboratory of Catalysis, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian, 116023, China
Abstract:High-reproducibility silicalite-1 membranes were synthesized on silica tubes by in-situ hydrothermal synthesis, and the relative standard deviation (R.S.D.) of average separation factor for eight membranes was only 7.5%. By using an effective method called “solution-filling (SF)”, the average flux of membranes prepared with SF method was improved by about 49% compared to membranes prepared without SF method, and the highest flux of membrane prepared with SF method towards ethanol/H2O mixture at 80 °C was 1.49 kg/(m2·h). Pervaporation experiments showed that the fluxes of silicalite-1 membranes at 60 °C were 2.63, 0.87, 0.24, and 0.20 kg/(m2·h) towards methanol/H2O, ethanol/H2O, 2-propanol/H2O, and 1-propanol/H2O mixtures, respectively, and the corresponding separation factors were 22, 69, 81, and159, respectively. Supported by the National Advanced Materials Committee of China (Grant No. 2003AA328010) and the Ministry of Science and Technology of China (Grant No. G2003CB615802)
Keywords:silicalite-1 membrane   solution-filling   reproducibility   silica tube
本文献已被 维普 SpringerLink 等数据库收录!
点击此处可从《科学通报(英文版)》浏览原始摘要信息
点击此处可从《科学通报(英文版)》下载全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号