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Study on Pervaporation Membranes for Removing Methanol from C5 or Methyl Tert-butyl Ether Mixtures

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【作者】 张林； 陈欢林； 周志军； 钱锦文； 高从堦； 潘祖仁；

【Author】 ZHANG Lin CHEN Huanlin ZHOU ZhyunQIAN Jinwen GAO Congjie and PAN ZurenCollege of Material Science & Chemical Engineering, Zhejiang University, Hangzhou 310027, China Development Center of Water Treatment Technology, SOA, Hangzhou 310012, China

【机构】 College of Material Science & Chemical Engineering； Zhejiang University； Development Center of Water Treatment Technology； College of Material Science & Chemical Engineering； Zhejiang University Hangzhou 310027； China； Hangzhou 310027； SOA； Hangzhou 310012； China；

【摘要】 <正> Several pervaporation membranes, cellulose acetate (CA), polyvinylbutyral (PVB), poly(MMA-co-AA), MMA-AA-BA, CA/PVB blend and CA/poly(MMA-co-AA) blend, were prepared, and their pervaporation properties were evaluated by separation of methanol/C5 or methanol/MTBE (methyl tert-butyl ether). The results shows that the CA composite membrane has a high separation performance (flux Jmenthanol =350g.m-2.h-1 and separation factor a > 400) for methanol/C5 mixtures, and the pervaporation characteristics of MMA-AA-BA copolymer membranes changes with the ratio of copolymer. For CA/poly(MMA-co-AA) blend membrane, the pervaporation performance is improved in comparison with CA or poly(MMA-co-AA) membrane. From the experiment of CA/PVB blend membranes for methanol/MTBE mixture, it is found that the compatibility of blends may affect the separation features of blend membrane.

【Abstract】 Several pervaporation membranes, cellulose acetate (CA), polyvinylbutyral (PVB), poly(MMA-co-AA), MMA-AA-BA, CA/PVB blend and CA/poly(MMA-co-AA) blend, were prepared, and their pervaporation properties were evaluated by separation of methanol/C5 or methanol/MTBE (methyl tert-butyl ether). The results shows that the CA composite membrane has a high separation performance (flux Jmenthanol =350g.m-2.h-1 and separation factor a > 400) for methanol/C5 mixtures, and the pervaporation characteristics of MMA-AA-BA copolymer membranes changes with the ratio of copolymer. For CA/poly(MMA-co-AA) blend membrane, the pervaporation performance is improved in comparison with CA or poly(MMA-co-AA) membrane. From the experiment of CA/PVB blend membranes for methanol/MTBE mixture, it is found that the compatibility of blends may affect the separation features of blend membrane.

【关键词】 pervaporation membrane； methanol； C5； methyl tert-butyl ether； blend；
【Key words】 pervaporation membrane； methanol； C5； methyl tert-butyl ether； blend；
【基金】 Supported by the National NaturM Science Foundation of China(No.29836160).
  • 【文献出处】 Chinese Journal of Chemical Engineering ,中国化学工程学报(英文版) , 编辑部邮箱 ,2003年02期
  • 【分类号】TQ202
  • 【被引频次】1
  • 【下载频次】75
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