Paper Information

Journal:   IRANIAN CHEMICAL ENGINEERING JOURNAL   2014 , Volume 13 , Number 72; Page(s) 76 To 84.
 
Paper: 

DEHYDRATION OF ORGANIC COMPOUNDS USING POLY VINYL ALCOHOL MEMBRANES IN PERVAPORATION PROCESS

 
 
Author(s):  HOSSEINI S.S.*, PAHLAVANZADEH H., TAMADONDAR M.
 
* CHEMICAL ENGINEERING FACULTY, TARBIAT MODARES UNIVERSITY, TEHRAN, IRAN
 
Abstract: 

Dehydration of the organic compounds using conventional established processes such as distillation in addition to being highly energy intensive, suffers from the limitations in achieving high degrees of separation particularly in case of azeotropic mixtures. Membrane pervaporation technology has great potentials to be used for this application owing to the lower energy consumption as well as the simplicity of the operations. Prominent characteristics of membranes prepared from poly (vinyl alcohol) (PVA) such as hydrophilicity as well as high thermal and mechanical stability have attracted many researchers to use this polymer for dehydration of organic compounds. Fabrication of asymmetric mixed matrix PVA membranes and inclusion of nano-particles in PVA matrix are among the most recent approaches developed for obtaining pervaporation membranes with enhanced separation performance. This paper aims to review the recent progresses in development of PVA-based pervaporation membranes for dehydration of organic compounds.

 
Keyword(s): DEHYDRATION OF ORGANIC COMPOUNDS, PERVAPORATION, MEMBRANE, POLY VINYL ALCOHOL
 
References: 
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