用于脱除C5

张林a; 陈欢林a; 周志军a; 钱锦文a; 高从堦b; 潘祖仁a
aCollege of Material Science & Chemical Engineering, Zhejiang University, Hangzhou 310027,
China
bDevelopment Center of Water Treatment Technology, SOA, Hangzhou 310012, China收稿日期:1900-01-01修回日期:1900-01-01出版日期:2003-04-28发布日期:通讯作者:张林

Study on Pervaporation Membranes for Removing Methanol from C5or Methyl Tert-butyl Ether

Mixtures

ZHANG Lina; CHEN Huanlina; ZHOU Zhijuna; QIAN Jinwena; GAO Congjieb; PAN Zurena
aCollege of Material Science & Chemical Engineering, Zhejiang University, Hangzhou 310027,
China
bDevelopment Center of Water Treatment Technology, SOA, Hangzhou 310012, ChinaReceived:1900-01-01Revised:1900-01-01Online:Contact:ZHANG Lin
摘要/Abstract
摘要: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 Jmethanol = 350 g.m-2.h-1 and separation factor α>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 Jmethanol = 350 g.m-2.h-1 and separation factor α>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.