文献类型：期刊文献

中文题名：壳聚糖-聚乙烯醇/聚丙烯腈复合膜分离乙酸乙酯-乙醇-水的性能

英文题名：Separation of Ethyl Acetate-Ethanol-Water by Pervaporation on Chitosan-Poly(Vinyl Alcohol)/Poly(Acrylonitrile) Composite Membrane

作者：马晓华[1];许振良[1];袁海宽[1]

机构：[1]华东理工大学化学工程研究所膜科学与工程研发中心,上海200237

年份：2009

卷号：38

期号：3

起止页码：290

中文期刊名：石油化工

外文期刊名：Petrochemical Technology

收录：CSTPCD;;Scopus;北大核心:【北大核心2008】；CSCD:【CSCD2011_2012】；

基金：上海华谊(集团)公司-华东理工大学先进化学与化工技术研究中心基金资助项目(A200-8608)

语种：中文

中文关键词：渗透汽化;复合膜;壳聚糖;聚乙烯醇;水;聚丙烯腈;乙酸乙酯;乙醇

外文关键词：pervaporation ; composite membrane; chitosan; poly （ vinyl alcohol ） ; water;poly （acrylonitrile） ; ethyl acetate; ethanol

摘要：制备了壳聚糖-聚乙烯醇/聚丙烯腈(CS-PVA/PAN)复合膜,用于乙酸乙酯-乙醇-水三组分溶液的分离。考察了CS-PVA/PAN复合膜的溶胀性、CS含量与料液温度对CS-PVA/PAN复合膜渗透汽化性能的影响;用傅里叶变换红外光谱对CS,PVA,CS-PVA均质膜进行了表征。实验结果表明,在料液温度313.15K、CS-PVA/PAN复合膜中w(CS)=50%时,CS-PVA/PAN复合膜能有效地脱除乙酸乙酯(质量分数84.6%)-乙醇(质量分数3.4%)-水(质量分数12.0%)三组分溶液中的水分,渗透通量为183g/(m2.h),分离因子为4 160;且随料液温度的升高,渗透通量增大,分离因子减小,渗透通量和料液温度能较好地符合Arrhenius方程。
CS-PVA/PAN composite membranes （ CS ： chitosan ; PVA ： poly （ vinyl alcohol ） ; PAN： poly（acrylonitrile） ） were prepared for separation of ethyl acetate-ethanol-water ternary system. The swelling behavior of CS-PVA/PAN composite membranes was studied in the ternary system. Effects of CS content and feed temperature on hydration of ethyl acetate-ethanol-water ternary system were discussed. Homogeneous membranes of CS, PVA and CS-PVA were characterized by means of PTIR. When feed temperature was 313.15 K and mass fraction of CS in CS-PVA/PAN composite membranes was 50%, the membrane showed excellent pervaporation performance to ethyl acetate（84.6% ）-ethanol （3.4%）-water （ 12.0% ） （ mass fraction） ternary system. The permeation flux was 183 g/（ m2 · h）. Separation factor of water to ethyl acetate was 4 160. When feed temperature increased, the permeation flux increased but the separation factor decreased. Relationship between permeation flux and temperature conformed to Arrhenius equation.