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Blend polyvinylidene fluoride/surface modifying macromolecule hollow fiber membrane contactors for CO2 absorption

Recently, membrane contactors have attracted attentions as an efficient and flexible technology for CO2 capture. In the present work, blend hydrophobic polyvinylidene fluoride (PVDF) hollow fiber membranes were prepared via a dry-wet phase-inversion process. Surface modifying macromolecule (SMM) was...

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Main Authors: Mansourizadeh, Amir, Aslmahdavi, Z., Ismail, Ahmad Fauzi, Matsuura, Takeshi
Format: Article
Published: Elsevier Ltd. 2014
Subjects:
TN Mining engineering. Metallurgy
Online Access:http://eprints.utm.my/id/eprint/52027/
http://dx.doi.org/10.1016/j.ijggc.2014.04.027
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spelling my.utm.520272018-11-30T07:00:24Z http://eprints.utm.my/id/eprint/52027/ Blend polyvinylidene fluoride/surface modifying macromolecule hollow fiber membrane contactors for CO2 absorption Mansourizadeh, Amir Aslmahdavi, Z. Ismail, Ahmad Fauzi Matsuura, Takeshi TN Mining engineering. Metallurgy Recently, membrane contactors have attracted attentions as an efficient and flexible technology for CO2 capture. In the present work, blend hydrophobic polyvinylidene fluoride (PVDF) hollow fiber membranes were prepared via a dry-wet phase-inversion process. Surface modifying macromolecule (SMM) was introduced to improve the membrane properties for CO2 absorption in gas-liquid membrane contactors. The effect of SMM concentration in the polymer dope, air gap distance and bore fluid composition on the structure and performance of the membranes were investigated. By increasing SMM in the polymer dope, the membranes presented smaller mean pore sizes, higher permeability and surface hydrophobicity. Using 2wt.% SMM, the membranes prepared at 24cm air gap showed larger mean pore size, higher hydrophobicity and lower permeability compared to those prepared at 0cm air gap. By using 60wt.% DMAc aqueous solution as the bore fluid, the membrane permeability and CO2 flux significantly improved. Maximum CO2 absorption flux of 6.8×10-4mol/m2 s was achieved at absorbent velocity of 0.025m/s. The surface modified membrane demonstrated about 10% gradual CO2 flux reduction for over 140h of the long-term operation. In conclusion, by improving surface hydrophobicity of the membrane, a long-term stable operation can be achieved for practical implication of gas-liquid membrane contactor technology. Elsevier Ltd. 2014 Article PeerReviewed Mansourizadeh, Amir and Aslmahdavi, Z. and Ismail, Ahmad Fauzi and Matsuura, Takeshi (2014) Blend polyvinylidene fluoride/surface modifying macromolecule hollow fiber membrane contactors for CO2 absorption. International Journal of Greenhouse Gas Control, 26 . pp. 83-92. ISSN 1750-5836 http://dx.doi.org/10.1016/j.ijggc.2014.04.027 DOI: 10.1016/j.ijggc.2014.04.027
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 TN Mining engineering. Metallurgy
spellingShingle TN Mining engineering. Metallurgy
Mansourizadeh, Amir
Aslmahdavi, Z.
Ismail, Ahmad Fauzi
Matsuura, Takeshi
Blend polyvinylidene fluoride/surface modifying macromolecule hollow fiber membrane contactors for CO2 absorption
description Recently, membrane contactors have attracted attentions as an efficient and flexible technology for CO2 capture. In the present work, blend hydrophobic polyvinylidene fluoride (PVDF) hollow fiber membranes were prepared via a dry-wet phase-inversion process. Surface modifying macromolecule (SMM) was introduced to improve the membrane properties for CO2 absorption in gas-liquid membrane contactors. The effect of SMM concentration in the polymer dope, air gap distance and bore fluid composition on the structure and performance of the membranes were investigated. By increasing SMM in the polymer dope, the membranes presented smaller mean pore sizes, higher permeability and surface hydrophobicity. Using 2wt.% SMM, the membranes prepared at 24cm air gap showed larger mean pore size, higher hydrophobicity and lower permeability compared to those prepared at 0cm air gap. By using 60wt.% DMAc aqueous solution as the bore fluid, the membrane permeability and CO2 flux significantly improved. Maximum CO2 absorption flux of 6.8×10-4mol/m2 s was achieved at absorbent velocity of 0.025m/s. The surface modified membrane demonstrated about 10% gradual CO2 flux reduction for over 140h of the long-term operation. In conclusion, by improving surface hydrophobicity of the membrane, a long-term stable operation can be achieved for practical implication of gas-liquid membrane contactor technology.
format Article
author Mansourizadeh, Amir
Aslmahdavi, Z.
Ismail, Ahmad Fauzi
Matsuura, Takeshi
author_facet Mansourizadeh, Amir
Aslmahdavi, Z.
Ismail, Ahmad Fauzi
Matsuura, Takeshi
author_sort Mansourizadeh, Amir
title Blend polyvinylidene fluoride/surface modifying macromolecule hollow fiber membrane contactors for CO2 absorption
title_short Blend polyvinylidene fluoride/surface modifying macromolecule hollow fiber membrane contactors for CO2 absorption
title_full Blend polyvinylidene fluoride/surface modifying macromolecule hollow fiber membrane contactors for CO2 absorption
title_fullStr Blend polyvinylidene fluoride/surface modifying macromolecule hollow fiber membrane contactors for CO2 absorption
title_full_unstemmed Blend polyvinylidene fluoride/surface modifying macromolecule hollow fiber membrane contactors for CO2 absorption
title_sort blend polyvinylidene fluoride/surface modifying macromolecule hollow fiber membrane contactors for co2 absorption
publisher Elsevier Ltd.
publishDate 2014
url http://eprints.utm.my/id/eprint/52027/
http://dx.doi.org/10.1016/j.ijggc.2014.04.027
_version_ 1643653131867783168
score 13.211869

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