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Carbon dioxide permeation characteristics in asymmetric polysulfone hollow fiber membrane: effect of constant heating and progressive heating

Azhari, Muhamad Azwar and Omar, Nooririnah and Mustaffa, Nuzaimah and Ismail, Ahmad Fauzi (2014) Carbon dioxide permeation characteristics in asymmetric polysulfone hollow fiber membrane: effect of constant heating and progressive heating. Advanced Materials Research, 896 . pp. 37-40. ISSN 1022-6680

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Official URL: http://dx.doi.org/10.4028/www.scientific.net/AMR.8...

Abstract

This paper reports the effect of constant heating and progressive on carbon dioxide permeation characteristics in asymmetric hollow fiber polysulfone membranes. Glassy polymers are easily plasticized with the presence of plasticizing agents such as carbon dioxide. Constant heating were applied to the membranes to suppress CO2 induced plasticization. Membranes treated with constant temperature heating exhibits lower pressure-normalize flux for both carbon dioxide and methane compared to untreated membranes. This was probably due to densification of membrane skin layer during heating process. Denser skin layer increases the resistance in the membrane which resulted in decreased of pressure-normalize flux. A higher density of membrane skin layer was achieved by progressive temperature heat treatment. This further increased the resistance in the membrane resulted in a lower value of pressure normalized-flux. With the application of different feed pressure, an almost linear value of CO2 pressure-normalize flux shows that plasticization is successfully suppressed by heat treatment. From the results provided in this study, it can be concluded that plasticization of polysulfone hollow fiber membrane is successfully suppressed by heat treatment process.

Item Type:Article
Uncontrolled Keywords:asymmetric polysulfone, constant heating, progressive heating
Subjects:T Technology > TN Mining engineering. Metallurgy
Divisions:Petroleum and Renewable Energy Engineering
ID Code:52056
Deposited By: Siti Nor Hashidah Zakaria
Deposited On:01 Feb 2016 11:51
Last Modified:30 Nov 2018 15:00

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