| 用于乙醇-水分离的SA-PVA/PSF中空纤维渗透汽化复合膜 |
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| 引用本文： | 吴凯,许振良,魏永明.用于乙醇-水分离的SA-PVA/PSF中空纤维渗透汽化复合膜[J].上海大学学报(英文版),2008,12(2):163-170. |
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| 作者姓名： | 吴凯 许振良 魏永明 |
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| 基金项目： | Project supported by the
National Basic Research Program of China (Grant No.2003CB615705) |
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| 摘 要： | Using polysulfone (PSF) hollow fiber ultrafiltration membranes as the substrate, sodium alginate (SA) and polyvinyl alcohol (PVA) blend solutions as the coating solution, and maleic anhydride (MAC) as the cross-linked agent, SAPVA/PSF hollow fiber composite membranes were prepared for the dehydration of ethanol-water. The effects of different sodium alginate concentration in the coating solutions and different operating temperatures on pervaporation performance were investigated. The experimental results showed that pervaporation performance of the SA-PVA/PSF composite membranes for ethanol-water solution exhibited a high separation factor although they had a relatively low permeation flux. As SA concentration in SA-PVA coating solution was 66.7% and the operating temperature was 40 ℃, SA-PVA/PSF hollow fiber composite membrane (PS4) had a separation factor of 886 and flux of 12.6 g/(m2·h). Besides, SA-PVA/PSF hollow fiber composite membranes (PS3 and PS4) were used for the investigation of the effect of ethanol concentration in the feed solution on pervaporation performance.
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| 关 键 词： | 乙醇-水分离 SA—PVA／PSF 空纤维渗透汽化复合膜 化学性能 |
| 收稿时间： | 2006-06-19 |
| 修稿时间： | 2006年6月19日 |
Sodium alginate-polyvinyl alcohol/polysulfone (SA-PVA/PSF) hollow fiber composite pervaporation membrane for dehydration of ethanol-water solution |
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| Kai Wu,Zhen-liang Xu,Yong-ming Wei.Sodium alginate-polyvinyl alcohol/polysulfone (SA-PVA/PSF) hollow fiber composite pervaporation membrane for dehydration of ethanol-water solution[J].Journal of Shanghai University(English Edition),2008,12(2):163-170. |
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| Authors: | Kai Wu Zhen-liang Xu Yong-ming Wei |
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| Institution: | Chemical Engineering Research Center, East China University of Science and Technology, Shanghai 200237, P. R. China |
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| Abstract: | Using polysulfone (PSF)
hollow fiber ultrafiltration membranes as the substrate, sodium alginate (SA) and
poly-vinyl alcohol (PVA) blend solutions as the coating solution, and maleic anhydride
(MAC) as the cross-linked agent, SA-PVA/PSF hollow fiber composite membranes were prepared
for the dehydration of ethanol-water. The effects of differentsodium alginate
concentration in the coating solutions and different operating temperatures on
pervaporation performance wereinvestigated. The experimental results showed that
pervaporation performance of the SA-PVA/PSF composite membranesfor ethanol-water solution
exhibited a high separation factor although they had a relatively low permeation flux. As
SAconcentration in SA-PVA coating solution was 66.7% and the operating temperature was 40
C, SA-PVA/PSF hollow fibercomposite membrane (PS4) had a separation factor of 886 and flux
of 12.6 g/(m2.h). Besides, SA-PVA/PSF hollow fibercomposite membranes (PS3 and PS4) were
used for the investigation of the effect of ethanol concentration in the feed solutionon
pervaporation performance. |
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| Keywords: | pervaporation hollow fiber composite membrane polysulfone (PSF) sodium alginate (SA) polyvinyl alcohol (PVA) |
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