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Effect of non-solvent additives on the structure and performance of PVDF hollow fiber membrane contactor for CO2 stripping

Microporous polyvinylidene fluoride (PVDF) hollow fiber membranes with various non-solvent additives, i.e. lithium chloride, glycerol, polyethylene glycol (PEG-400), methanol and phosphoric acid, were fabricated for CO2 stripping via membrane contactors. The membranes were characterized in terms of...

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Main Authors: Naim, R., Ismail, Ahmad Fauzi, Mansourizadeh, A.
Format: Article
Published: Elsevier 2012
Subjects:
TP Chemical technology
Online Access:http://eprints.utm.my/id/eprint/33457/
http://dx.doi.org/10.1016/j.memsci.2012.08.052
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spelling my.utm.334572018-11-30T06:35:31Z http://eprints.utm.my/id/eprint/33457/ Effect of non-solvent additives on the structure and performance of PVDF hollow fiber membrane contactor for CO2 stripping Naim, R. Ismail, Ahmad Fauzi Mansourizadeh, A. TP Chemical technology Microporous polyvinylidene fluoride (PVDF) hollow fiber membranes with various non-solvent additives, i.e. lithium chloride, glycerol, polyethylene glycol (PEG-400), methanol and phosphoric acid, were fabricated for CO2 stripping via membrane contactors. The membranes were characterized in terms of liquid entry pressure, contact angle, gas permeation and morphology analysis. CO2 stripping performance was investigated by using an in-house made stainless steel module with CO2-preloaded aqueous diethanolamine as the liquid absorbent. Hydrophobicity and gas permeability of the membranes reduced with the addition of a non-solvent additive in the polymer dope but increase in liquid entry pressure was observed as more sponge-like structures developed in the inner layer of the fibers. It was found that PVDF/PEG-400 membrane produced the highest stripping flux of 4.03×10-2 mol m-2 s-1 which can be correlated to its high gas permeation and high effective surface porosity. The result of long-term stripping operation indicated an approximatly 80% stripping flux reduction which can be related to the interaction of polymer membrane and amine solution at high temperature. Elsevier 2012-12-15 Article PeerReviewed Naim, R. and Ismail, Ahmad Fauzi and Mansourizadeh, A. (2012) Effect of non-solvent additives on the structure and performance of PVDF hollow fiber membrane contactor for CO2 stripping. Journal of Membrane Science, 423-24 . pp. 503-513. ISSN 0376-7388 http://dx.doi.org/10.1016/j.memsci.2012.08.052 DOI:10.1016/j.memsci.2012.08.052
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
topic TP Chemical technology
spellingShingle TP Chemical technology
Naim, R.
Ismail, Ahmad Fauzi
Mansourizadeh, A.
Effect of non-solvent additives on the structure and performance of PVDF hollow fiber membrane contactor for CO2 stripping
description Microporous polyvinylidene fluoride (PVDF) hollow fiber membranes with various non-solvent additives, i.e. lithium chloride, glycerol, polyethylene glycol (PEG-400), methanol and phosphoric acid, were fabricated for CO2 stripping via membrane contactors. The membranes were characterized in terms of liquid entry pressure, contact angle, gas permeation and morphology analysis. CO2 stripping performance was investigated by using an in-house made stainless steel module with CO2-preloaded aqueous diethanolamine as the liquid absorbent. Hydrophobicity and gas permeability of the membranes reduced with the addition of a non-solvent additive in the polymer dope but increase in liquid entry pressure was observed as more sponge-like structures developed in the inner layer of the fibers. It was found that PVDF/PEG-400 membrane produced the highest stripping flux of 4.03×10-2 mol m-2 s-1 which can be correlated to its high gas permeation and high effective surface porosity. The result of long-term stripping operation indicated an approximatly 80% stripping flux reduction which can be related to the interaction of polymer membrane and amine solution at high temperature.
format Article
author Naim, R.
Ismail, Ahmad Fauzi
Mansourizadeh, A.
author_facet Naim, R.
Ismail, Ahmad Fauzi
Mansourizadeh, A.
author_sort Naim, R.
title Effect of non-solvent additives on the structure and performance of PVDF hollow fiber membrane contactor for CO2 stripping
title_short Effect of non-solvent additives on the structure and performance of PVDF hollow fiber membrane contactor for CO2 stripping
title_full Effect of non-solvent additives on the structure and performance of PVDF hollow fiber membrane contactor for CO2 stripping
title_fullStr Effect of non-solvent additives on the structure and performance of PVDF hollow fiber membrane contactor for CO2 stripping
title_full_unstemmed Effect of non-solvent additives on the structure and performance of PVDF hollow fiber membrane contactor for CO2 stripping
title_sort effect of non-solvent additives on the structure and performance of pvdf hollow fiber membrane contactor for co2 stripping
publisher Elsevier
publishDate 2012
url http://eprints.utm.my/id/eprint/33457/
http://dx.doi.org/10.1016/j.memsci.2012.08.052
_version_ 1643649336910807040
score 13.211869

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