Naim, Rosma and Ismail, Ahmad Fauzi and Mansourizadeh, Amir (2012) Preparation of microporous PVDF hollow fiber membrane contactors for CO2 stripping from diethanolamine solution. Journal of Membrane Science, 392-93 . pp. 29-37. ISSN 0376-7388
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Official URL: https://www.sciencedirect.com/science/article/pii/...
Abstract
Microporous polyvinylidene fluoride (PVDF) hollow fiber membranes were fabricated via a wet-spinning process. The prepared fibers were characterized in terms of contact angle, gas permeability, wetting pressure and morphology. CO 2 stripping from preloaded aqueous diethanolamine solution was conducted through the gas-liquid membrane contactors. The effects of lithium chloride (LiCl) concentration on the membrane properties and CO 2 stripping performance were investigated. The addition of different LiCl concentration resulted in a less finger-like structure, with highly effective surface porosity and high wetting pressure. Conversely, N 2 permeability, contact angle value and membrane pore size were reduced as the concentration of the additives were increased. For stripping flux performance, membrane with 5wt% LiCl demonstrated the highest flux of 1.61×10 -2mol/m 2s at 110ml/min of the liquid flow rate. It was found that the membrane with less finger-like structure and higher effective surface porosity exhibited higher stripping efficiency. These results suggest that developed membrane structure can be an alternative for the CO 2 stripping through gas-liquid membrane contactors.
Item Type: | Article |
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Uncontrolled Keywords: | CO2 stripping, Gas–liquid membrane contactor |
Subjects: | T Technology > TP Chemical technology |
Divisions: | Petroleum and Renewable Energy Engineering |
ID Code: | 47408 |
Deposited By: | Fazli Masari |
Deposited On: | 22 Jun 2015 05:56 |
Last Modified: | 31 Oct 2018 12:37 |
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