Performance of various Si/Al ratios of ZSM‐5‐filled polydimethylsiloxane/polyethersulfone membrane in butanol recovery by pervaporation

Various Si/Al ratios (25, 50, 150, 300) of ZSM‐5‐filled PDMS/PES membranes were prepared in this work. FTIR, SEM, and a self‐designed apparatus were used to characterize the morphology of ZSM‐5 particles and the morphology and mechanical properties of mixed matrix membranes (MMMs). The affinity of Z...

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Bibliographic Details
Published inAdvances in polymer technology Vol. 37; no. 8; pp. 3095 - 3105
Main Authors Xue, Guangpeng, Shi, Baoli
Format Journal Article
LanguageEnglish
Published London Hindawi Limited 01.12.2018
Subjects
Aluminum
Butanol
Imbibition
Mechanical properties
Membranes
Morphology
Pervaporation
Polydimethylsiloxane
Polyethersulfones
Selectivity
Separation
Silicon
Silicone resins
ZSM‐5 zeolites
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Summary:Various Si/Al ratios (25, 50, 150, 300) of ZSM‐5‐filled PDMS/PES membranes were prepared in this work. FTIR, SEM, and a self‐designed apparatus were used to characterize the morphology of ZSM‐5 particles and the morphology and mechanical properties of mixed matrix membranes (MMMs). The affinity of ZSM‐5 particles with four different Si/Al ratios toward butanol was investigated via physical imbibition. In the pervaporation (PV) process, it is shown that the Si/Al ratio of ZSM‐5 significantly influences separation performance of MMMs. As the Si/Al ratio increased from 25 to 300, the separation factor was increased from 16.5 to 24.1. Moreover, as the loading content of ZSM‐5 increased from 0 to 50 wt.%, the separation factor increased from 15.6 to 24.0 and the total flux increased from 101.7 to 146.3 g/(m2 h). Furthermore, as the downstream pressure increased from 0.6 to 3 kPa, MMMs gradually lost the selectivity.
ISSN:0730-6679
1098-2329
DOI:10.1002/adv.22080