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Preparation, characterization, and performance evaluation of coated PES polymer materials fabricated via dry/wet phase inversion technique
Author(s) -
Kim KeeHong,
Hyung ChanHeui,
Ingole Pravin G.,
Kim JongHak,
Lee HyungKeun
Publication year - 2014
Publication title -
journal of applied polymer science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.575
H-Index - 166
eISSN - 1097-4628
pISSN - 0021-8995
DOI - 10.1002/app.39711
Subject(s) - permeance , phase inversion , materials science , membrane , scanning electron microscope , polydimethylsiloxane , gas separation , hollow fiber membrane , polymer , analytical chemistry (journal) , fourier transform infrared spectroscopy , chemical engineering , fiber , composite material , chromatography , chemistry , permeation , biochemistry , engineering
Sulfur dioxide (SO 2 ) is the major air pollutant which is emitted from the power plant. In this study, hollow fiber membrane (HFM) separation process is applied for the improvement of SO 2 removal efficiency in the post‐combustion gas. HFM was produced by dry/wet phase inversion method and then coated with Polydimethylsiloxane (PDMS). The membrane morphology and characterization were examined with help of scanning electron microscope (SEM), energy dispersion of X‐ray spectroscopy (EDX), Fourier transform infrared (FT‐IR) and atomic force microscopy (AFM). Polyethersulfone (PES) hollow fiber membranes were tested for the SO 2 /N 2 binary mixed gas separation. Single gas permeance of SO 2 , N 2 , and binary mixture gas (200 ppm of SO 2 ) separation experiment was initiated to observe membrane behavior according to temperature and pressure difference and retentate flow rate. As a result, permeance of SO 2 was 24.9–47.4 GPU and selectivity of SO 2 /N 2 was 1.6–4.2. From the mixture gas separation experiment, SO 2 removal efficiency increased according to stage cut and operating pressure. © 2013 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2014 , 131 , 39711.