Effects of dope extrusion rate on the morphology and gas separation performance of asymmetric polysulfone hollow fiber membranes for O2/N2 separation
The objective of this study was to investigate the influence of dope extrusion rates on morphology and gas separation performance of asymmetric polysulfone hollow fiber membranes. Asymmetric polysulfone hollow fiber membranes for gas separation were prepared from a solution consisting of 26.0 wt. %...
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| Format: | Article |
| Language: | English |
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Prince of Songkla University
2002-11-01
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| Series: | Songklanakarin Journal of Science and Technology (SJST) |
| Subjects: | |
| Online Access: | http://www.sjst.psu.ac.th/journal/24_Suppl_membrane/09gas.pdf |
| _version_ | 1811301555109888000 |
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| author | Ahmad Fausi Ismail Suhaina Mohd. Ibrahim Nor Shawal bin Nasri |
| author_facet | Ahmad Fausi Ismail Suhaina Mohd. Ibrahim Nor Shawal bin Nasri |
| author_sort | Ahmad Fausi Ismail |
| collection | DOAJ |
| description | The objective of this study was to investigate the influence of dope extrusion rates on morphology and gas separation performance of asymmetric polysulfone hollow fiber membranes. Asymmetric polysulfone hollow fiber membranes for gas separation were prepared from a solution consisting of 26.0 wt. % of polysulfone, 30.4 wt. % of N, N-dimethylacetamide, 30.4 wt. % of tetrahydrofuran and 13.2 wt. % ethanol. The dry/wet phase separation process was applied to a dry/wet spinning process. Fibers were spun at various dope extrusion rates (DER) ranging from 1.5 - 3.0 cm3/min and hence at different levels of shear. The results suggest that as the dope extrusion rate is increased, the selectivity will increase until a critical level of shear is reached, beyond which the membrane performance deteriorates. Pressure-normalized-fluxes and selectivities were evaluated by using pure oxygen and nitrogen as test gases. |
| first_indexed | 2024-04-13T07:12:07Z |
| format | Article |
| id | doaj.art-2e0c5471f9fa4909b9931e5a910bddb0 |
| institution | Directory Open Access Journal |
| issn | 0125-3395 |
| language | English |
| last_indexed | 2024-04-13T07:12:07Z |
| publishDate | 2002-11-01 |
| publisher | Prince of Songkla University |
| record_format | Article |
| series | Songklanakarin Journal of Science and Technology (SJST) |
| spelling | doaj.art-2e0c5471f9fa4909b9931e5a910bddb02022-12-22T02:56:51ZengPrince of Songkla UniversitySongklanakarin Journal of Science and Technology (SJST)0125-33952002-11-0124Suppl.833842Effects of dope extrusion rate on the morphology and gas separation performance of asymmetric polysulfone hollow fiber membranes for O2/N2 separationAhmad Fausi IsmailSuhaina Mohd. IbrahimNor Shawal bin NasriThe objective of this study was to investigate the influence of dope extrusion rates on morphology and gas separation performance of asymmetric polysulfone hollow fiber membranes. Asymmetric polysulfone hollow fiber membranes for gas separation were prepared from a solution consisting of 26.0 wt. % of polysulfone, 30.4 wt. % of N, N-dimethylacetamide, 30.4 wt. % of tetrahydrofuran and 13.2 wt. % ethanol. The dry/wet phase separation process was applied to a dry/wet spinning process. Fibers were spun at various dope extrusion rates (DER) ranging from 1.5 - 3.0 cm3/min and hence at different levels of shear. The results suggest that as the dope extrusion rate is increased, the selectivity will increase until a critical level of shear is reached, beyond which the membrane performance deteriorates. Pressure-normalized-fluxes and selectivities were evaluated by using pure oxygen and nitrogen as test gases.http://www.sjst.psu.ac.th/journal/24_Suppl_membrane/09gas.pdfgas separationpolysulfoneshear rateshollow fiber membranes |
| spellingShingle | Ahmad Fausi Ismail Suhaina Mohd. Ibrahim Nor Shawal bin Nasri Effects of dope extrusion rate on the morphology and gas separation performance of asymmetric polysulfone hollow fiber membranes for O2/N2 separation Songklanakarin Journal of Science and Technology (SJST) gas separation polysulfone shear rates hollow fiber membranes |
| title | Effects of dope extrusion rate on the morphology and gas separation performance of asymmetric polysulfone hollow fiber membranes for O2/N2 separation |
| title_full | Effects of dope extrusion rate on the morphology and gas separation performance of asymmetric polysulfone hollow fiber membranes for O2/N2 separation |
| title_fullStr | Effects of dope extrusion rate on the morphology and gas separation performance of asymmetric polysulfone hollow fiber membranes for O2/N2 separation |
| title_full_unstemmed | Effects of dope extrusion rate on the morphology and gas separation performance of asymmetric polysulfone hollow fiber membranes for O2/N2 separation |
| title_short | Effects of dope extrusion rate on the morphology and gas separation performance of asymmetric polysulfone hollow fiber membranes for O2/N2 separation |
| title_sort | effects of dope extrusion rate on the morphology and gas separation performance of asymmetric polysulfone hollow fiber membranes for o2 n2 separation |
| topic | gas separation polysulfone shear rates hollow fiber membranes |
| url | http://www.sjst.psu.ac.th/journal/24_Suppl_membrane/09gas.pdf |
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