Open AccessZSM-5 Filled Polyether Block Amide Membranes for Separating EA from Aqueous Solution by Pervaporation
Author(s) -
Jin Gu,
Xinran Zhang,
Yunxiang Bai,
Le Yang,
Chunfang Zhang,
Yuping Sun
Publication year - 2013
Publication title -
international journal of polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.399
H-Index - 33
eISSN - 1687-9430
pISSN - 1687-9422
DOI - 10.1155/2013/760156
Subject(s) - pervaporation , membrane , aqueous solution , zsm 5 , materials science , polymer chemistry , chemical engineering , flux (metallurgy) , chromatography , aroma , amide , chemistry , organic chemistry , permeation , zeolite , biochemistry , catalysis , food science , engineering , metallurgy
ZSM-5 filled polyether block amide membranes (PEBA), PEBA/ZSM-5, were prepared and used to recover aroma, ethyl acetate (EA), from aqueous solution by pervaporation (PV). The membranes demonstrated high EA permselectivity, and with the increase of ZSM-5 loading, the separation factor increased initially and then decreased, while the total flux demonstrated the similar variation until the ZSM-5 loading was 10 wt%, at which it reached the lowest value. After that, it began to increase again. On the other hand, the separation factor, and total flux of the PEBA/ZSM-5 membrane containing 10 wt% ZSM-5, PEBA/ZSM-5-10, increased with the increase of feed concentration and temperature. The best PV performance, separation factor and total flux of PEBA/ZSM-5-10 membrane were 185.5 and 199.5 gm−2h−1, respectively, with feed concentration of 5 wt% EA at 50°C
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