Journal
JOURNAL OF MEMBRANE SCIENCE
Volume 197, Issue 1-2, Pages 211-222Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/S0376-7388(01)00628-7
Keywords
hollow fiber PDMS membrane; waste air cleaning; VOC recovery; gas and vapor permeation
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Polyetherimide (PEI) membranes coated with polydimethylsiloxane (PDMS) are frequently used for removing volatile organic compounds (VOCs) from air. An experimental and theoretical study was per-formed to evaluate the effects of the feed flow rate, feed VOC composition, feed and permeate total pressure using a hollow fiber membrane module for separating acetone, ethyl acetate and ethanol from air. The results are discussed on a basis of permeate flux and permeate VOC concentration. It was found that the hollow fiber module provides good separation capabilities, in spite of the observed PEI sub-layer mass transport resistance, and the proposed model fits the experimental results fairly well. (C) 2002 Elsevier Science B.V. All rights reserved.
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