Pervaporation dehydration of ethyl acetate/ethanol/water azeotrope using chitosan/poly (vinyl pyrrolidone) blend membranes

被引：75

作者：

Zhang, Xiu Hua ^{[1
]}

Liu, Qing Lin ^{[1
]}

Xiong, Ying ^{[1
]}

Zhu, Ai Mei ^{[1
]}

Chen, Yu ^{[1
]}

Zhang, Qiu Gen ^{[1
]}

机构：

[1] Xiamen Univ, Coll Chem & Chem Engn, Dept Chem & Biochem Engn, Natl Engn Lab Green Chem Prod Alcohols Ethers & E, Xiamen 361005, Peoples R China

来源：

JOURNAL OF MEMBRANE SCIENCE | 2009年 / 327卷 / 1-2期

关键词：

Ethyl acetate/ethanol/water azeotrope; Chitosan/PVP blend; Pervaporation; Membranes; BENZENE/CYCLOHEXANE MIXTURES; ACETATE; SEPARATION; ETHANOL; DISTILLATION; REMOVAL; BENZENE; WATER;

D O I：

10.1016/j.memsci.2008.11.034

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

In this paper, chitosan (CS)/poly (vinyl pyrrolidone) (PVP) blend membranes crosslinked by glutaraldehyde (GA) were prepared for the separation of ethyl acetate/ethanol/water azeotrope by pervaporation (PV). Their chemical and physical characteristics were studied by Fourier transform infrared (FTIR), environmental scanning electron microscopy (ESEM), X-ray diffraction (XRD), differential scanning calorimeter (DSC), thermogravimetric analysis (TGA), and contact angle measurement. The PV properties of the membranes were investigated through dehydration of the azeotrope. Permeation flux increased with increasing feed temperature and PVP content, while separation factor decreased. However, the separation factor increased with increasing GA content, whereas the flux decreased. The results showed that the membranes with PVP content of 10 wt% exhibited excellent PV properties with a flux of 953 g m(-2) h(-1) and separation factor of 746 at 35 degrees C. (C) 2008 Elsevier B.V. All rights reserved.

引用

页码：274 / 280

页数：7

共 27 条

[1]

[Anonymous], [No title captured]

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