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Sorption and pervaporation results of clinoptilolite filled poly(vinylalcohol) membrane prepared for dehydration of aqueous organic mixtures
Author(s) -
Salt Yavuz,
Arçevik Ersel,
Ekinci Buket
Publication year - 2014
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.21927
Subject(s) - pervaporation , clinoptilolite , sorption , permeation , thermogravimetric analysis , zeolite , aqueous solution , membrane , differential scanning calorimetry , chemistry , dehydration , nuclear chemistry , chemical engineering , materials science , chromatography , organic chemistry , adsorption , biochemistry , physics , engineering , thermodynamics , catalysis
Clinoptilolite filled poly(vinylalcohol) membranes containing different weight percentages of zeolite were prepared by solution casting method, and the prepared membranes were characterised by scanning electron microscopy, thermogravimetric analysis and differential scanning calorimeter. Sorption and permeation experiments were carried out at 30, 40 and 50°C in pure water, ethanol (EtOH) and ethylacetate. In addition, the pervaporation separation of EtOH–water mixtures was conducted for 20–80 wt% water containing EtOH–water binary mixtures at 30, 40 and 50°C. It is observed that permeation rates increased and selectivity decreased with the increasing of temperature and the water content in the feed.