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Synthesis and characterization of poly (ether‐block‐amide) mixed matrix membranes incorporated by nanoporous ZSM‐5 particles for CO 2 /CH 4 separation
Author(s) -
Hosseinzadeh Beiragh Hosna,
Omidkhah Mohammadreza,
Abedini Reza,
Khosravi Tayebeh,
Pakseresht Saeed
Publication year - 2016
Publication title -
asia‐pacific journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.348
H-Index - 35
eISSN - 1932-2143
pISSN - 1932-2135
DOI - 10.1002/apj.1973
Subject(s) - barrer , materials science , fourier transform infrared spectroscopy , membrane , thermogravimetric analysis , nanoporous , zeolite , chemical engineering , scanning electron microscope , gas separation , polymer chemistry , analytical chemistry (journal) , chemistry , composite material , organic chemistry , nanotechnology , biochemistry , engineering , catalysis
Abstract In this work, poly (ether‐block‐amide) (Pebax MH 1657) mixed matrix membranes (MMMs) were prepared using nanoporous ZSM‐5 as a filler. The fabricated membranes were characterized by Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), differential scanning calorimeter (DSC) analysis, thermal gravimetric analysis (TGA) and X‐ray diffraction (XRD). Effects of zeoilte loading (5, 10 and 15 wt. %), and feed pressure (1, 3 and 5 bar) on CO 2 /CH 4 separation of MMMs were investigated using constant volume/variable pressure system. SEM analysis represents a proper morphology along with proper dispersion of ZSM‐5 particles within the polymer matrix. TGA analysis demonstrated that the thermal degradation temperature (T d ) of MMMs increased by increasing the ZSM‐5 loading. The obtained experimental results showed that both permeability and CO 2 /CH 4 selectivity enhanced by addition of zeolite compared to neat Pebax. At low concentration of zeolite (5 wt. %), the CO 2 permeability increased significantly from 122.4 Barrer to 217.9 Barrer at pressure of 1 bar. MMM that incorporated by 15 wt. % of zeolite showed the best CO 2 /CH 4 selectivity of 33.9 at pressure of 1 bar. The CO 2 permeability of MMM with 5 wt. % ZSM‐5 enhanced from 217.9 to 292.4 Barrer with increase in feed pressure from 1 to 5 bar. Copyright © 2016 Curtin University of Technology and John Wiley & Sons, Ltd.