TY - JOUR
T1 - Effect of polymer extrusion temperature on poly(vinylidene fluoride) hollow fiber membranes
T2 - Properties and performance used as gas-liquid membrane contactor for CO 2 absorption
AU - Ghasem, Nayef
AU - Al-Marzouqi, Mohamed
AU - Abdul Rahim, Nihmiya
N1 - Funding Information:
The authors would like to acknowledge the financial support provided by the Japan Cooperation Center, Petroleum (JCCP), and the technical support of the Nippon Oil Research Institute Co., Ltd. (JX-NRI).
PY - 2012/10/8
Y1 - 2012/10/8
N2 - In this study, poly(vinylidene fluoride) (PVDF) hollow fiber membranes were fabricated via thermally induced phase separation (TIPS) method using 28% PVDF polymer and 72% triacetin solvent. The dope solutions were prepared at four different extrusion temperatures (140 °C, 150 °C, 160 °C and 170 °C). The fabricated membranes were characterized using scanning electron microscopy (SEM), mercury porosimeter to measure membrane average pore diameter, gas permeation test was employed to measure membrane effective surface porosity. The separation of carbon dioxide (CO 2) from methane (CH 4) by using a gas-liquid membrane contactor was studied in order to confirm the potential of the process using the fabricated hollow fiber membranes. The experiments were performed in a membrane contactor constructed with the fabricated microporous PVDF hollow fibers. Aqueous sodium hydroxide (NaOH) solution was utilized as the liquid absorbent. The effect of the gas flow rate on the CO 2 flux was investigated. It was found that the PVDF membranes exhibited increased pore size, water contact angle, membrane strength, membrane porosity, effective surface porosity with preparation temperature. Counter-current flow mode was employed; the CO 2 flux increased with membrane extrusion temperatures.
AB - In this study, poly(vinylidene fluoride) (PVDF) hollow fiber membranes were fabricated via thermally induced phase separation (TIPS) method using 28% PVDF polymer and 72% triacetin solvent. The dope solutions were prepared at four different extrusion temperatures (140 °C, 150 °C, 160 °C and 170 °C). The fabricated membranes were characterized using scanning electron microscopy (SEM), mercury porosimeter to measure membrane average pore diameter, gas permeation test was employed to measure membrane effective surface porosity. The separation of carbon dioxide (CO 2) from methane (CH 4) by using a gas-liquid membrane contactor was studied in order to confirm the potential of the process using the fabricated hollow fiber membranes. The experiments were performed in a membrane contactor constructed with the fabricated microporous PVDF hollow fibers. Aqueous sodium hydroxide (NaOH) solution was utilized as the liquid absorbent. The effect of the gas flow rate on the CO 2 flux was investigated. It was found that the PVDF membranes exhibited increased pore size, water contact angle, membrane strength, membrane porosity, effective surface porosity with preparation temperature. Counter-current flow mode was employed; the CO 2 flux increased with membrane extrusion temperatures.
KW - CO absorption
KW - Extrusion temperature
KW - Hollow fiber membranes
KW - Membrane absorption
KW - PVDF
KW - Poly(vinylidene fluoride)
KW - TIPS method
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U2 - 10.1016/j.seppur.2012.07.021
DO - 10.1016/j.seppur.2012.07.021
M3 - Article
AN - SCOPUS:84866514561
SN - 1383-5866
VL - 99
SP - 91
EP - 103
JO - Separation and Purification Technology
JF - Separation and Purification Technology
ER -