TY  - JOUR
T1  - Effect of Progressive Heating on CO<sub>2</sub>/CH<sub>4</sub> Separation Using Assymetric Hollow Fiber Polysulfone Membrane
AU - Azwar Azhari, Muhamad AU - Nooririnah, O. AU - Fauzi bin Ismail, Ahmad 
JO  - Journal of Engineering and Applied Sciences
VL  - 11
IS  - 9
SP  - 1958
EP  - 1961
PY  - 2016
DA  - 2001/08/19
SN  - 1816-949x
DO  - jeasci.2016.1958.1961
UR  - https://makhillpublications.co/view-article.php?doi=jeasci.2016.1958.1961
KW  - Study asymmetric polysulfone
KW  -CO2 /CH4 separation
KW  -progressive heating
KW  -layer
KW  -polymers
AB  - This study reports the effect of progressive heating on carbon dioxide/methane separation characteristics in asymmetric hollow fiber polysulfone membranes. Glassy polymers are easily plasticized with
the presence of plasticizing agents such as carbon dioxide. Progressive heating were applied to the membranes to suppress CO<sub>2</sub> induced plasticization. Membranes treated with progressive temperature heating exhibits lower pressure-normalize flux for both carbon dioxide and methane compared to untreated membranes. This was due to densification of membrane skin layer during progressive heating process. Denser skin layer increases the
resistance in the membrane which resulted in decreased of pressure-normalize flux for both CO<sub>2</sub> and CH<sub>4</sub>. CO<sub>2</sub>/CH<sub>4</sub> separation decreases with the increase of feed pressure for untreated membranes due to plasticization caused by CO<sub>2</sub> . However, CO<sub>2</sub>/CH<sub>4</sub> separation increases and remains high for membranes treated with progressive heating technique showing that CO<sub>2</sub> induced plasticization has been successfully suppressed. From the results provided in this study, it can be concluded that plasticization of polysulfone hollow fiber membrane is successfully suppressed by progressive heating heat treatment process.
ER  -