文献类型：期刊文献

英文题名：Dehydration of ethyl acetate aqueous solution by pervaporation using PVA/PAN hollow fiber composite membrane

作者：Yuan, Hai-Kuan[1];Ren, Jie[1];Ma, Xiao-Hua[2];Xu, Zhen-Liang[2]

机构：[1]Zhejiang Univ Technol, Coll Chem Engn & Mat Sci, Hangzhou 310014, Zhejiang, Peoples R China;[2]E China Univ Sci & Technol, Chem Engn Res Ctr, Shanghai 200237, Peoples R China

年份：2011

卷号：280

期号：1-3

起止页码：252

外文期刊名：DESALINATION

收录：;EI(收录号：20114014396344);WOS:【SCI-EXPANDED(收录号:WOS:000296365800034)】；

基金：The authors acknowledge Education Department of Zhejiang Province (GD10071010045), the National Key Fundamental Research Development Plan ("973" Plan, No.2003CB615705) and Chemistry & Chemical Technology Research Center Plan of Shanghai Huayi Group Company (A200-8608) for giving financial supports in this project.

语种：英文

外文关键词：Polyvinyl alcohol (PVA); Pervaporation (PV); Hollow fiber composite membrane; Ethyl acetate (EAc)-water solution

摘要：Using poly(vinyl alcohol) (PVA) as coating material, tartaric acid (Tac) and maleic anhydride (Mac) as cross-linking agents and the poly(acrylonitrile) (PAN) hollow fiber ultrafiltration membrane as support layer, the PVA/PAN composite membrane was prepared by dip-coating method used for pervaporation (PV) dehydration of ethyl acetate (EAc)/H2O solution. The PVA/PAN composite membrane was characterized by FT-IR spectra and SEM. The effects of cross-linking agents on the swelling degree and PV performance of PVA/PAN membrane were investigated, respectively. The separation factor of PVA/PAN composite membrane increased while the permeation flux decreased with increasing the contents of cross-linking agents, and PVA/PAN membrane exhibited better PV performance when Tac/PVA mass ratio was 0.2. Furthermore, the PV performance of PVA/PAN composite membrane for EAc/H2O solution was investigated with respect to the feed temperatures and feed water concentrations. For PVA/PAN composite membrane with Tac/PVA mass ratio of 0.2, its performance for 2 wt.% water of EAc solution at 40 degrees C was evaluated as follows: the separation factor and permeation flux were 7270 and 34.5 g m(-2) h(-1), respectively. In addition, PVA/PAN composite membrane was also used for PV dehydration of EAc/ethanol (EtOH)/H2O ternary solution. (C) 2011 Elsevier B.V. All rights reserved.