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Porous polyethersulfone hollow fiber membrane in CO2 separation process via membrane contactor - the effect of nonsolvent additives

Bakeri, Gholamreza and Rezaei-Dashtarzhandi, Masoud and Ismail, Ahmad Fauzi and Matsuura, Takeshi and Abdullah, Mohd. Sohaimi and Ng, Be Cheer (2017) Porous polyethersulfone hollow fiber membrane in CO2 separation process via membrane contactor - the effect of nonsolvent additives. Korean Journal of Chemical Engineering, 34 (1). pp. 160-169. ISSN 0256-1115

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Official URL: http://dx.doi.org/10.1007/s11814-016-0258-4

Abstract

A membrane contactor (MC) is used for natural gas sweetening and wastewater treatment with a membrane that is acting as a separating barrier between two phases, usually liquid and gas. The performance of membrane is governed by parameters such as pore size, porosity, tortuosity and surface hydrophobicity, which can be controlled by a number of methods. Addition of nonsolvents to spinning solution is known to be one of such methods. In this study, the effects of low molecular weight additives as phase inversion promoters on the morphology of polyethersulfone hollow fiber membranes and their performance in gas-liquid MC processes were investigated. It was found that among the six nonsolvent additives under study, addition of water resulted in the highest CO2 flux, by decreasing the thermodynamic stability of polymer solution and maintaining high solvent-nonsolvent exchange rate.

Item Type:Article
Additional Information:RADIS System Ref No:PB/2017/11259
Uncontrolled Keywords:membrane contactor, polyethersulfone
Subjects:T Technology > TP Chemical technology
A General Works
Divisions:Chemical Engineering
Office of Deputy Vice Chancellor (Research & Innovation)
ID Code:66184
Deposited By: Widya Wahid
Deposited On:17 Jul 2017 09:55
Last Modified:17 Jul 2017 09:55

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