Production of Super Selective Polysulfone Hollow Fiber Membranes for Gas Separation
Polysulfone gas separation hollow fiber membranes were manufactured using a dry/wet spinning process with forced convection in the dry gap. Hollow fibers were produced using two different bore coagulants: one pure water and one with reduced water activity. An optimized multi-component dope was used...
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| Format: | Article |
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Elsevier Science Ltd.
1999
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| Online Access: | http://eprints.utm.my/721/ |
| _version_ | 1848889980688007168 |
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| author | Ismail, A. F. Dunkin, I. R. Gallivan, S. L. Shilton, S. J. |
| author_facet | Ismail, A. F. Dunkin, I. R. Gallivan, S. L. Shilton, S. J. |
| author_sort | Ismail, A. F. |
| building | UTeM Institutional Repository |
| collection | Online Access |
| description | Polysulfone gas separation hollow fiber membranes were manufactured using a dry/wet spinning process with forced convection in the dry gap. Hollow fibers were produced using two different bore coagulants: one pure water and one with reduced water activity. An optimized multi-component dope was used which proved to be a shear-thinning power-law fluid. For each bore system, membranes were spun at low and high dope extrusion rates (DERs) corresponding to shear rates of around 4000 s21 and 10 000 s21, respectively, at the outer spinneret wall. Plane polarized infrared spectroscopy was used to probe the membrane active layer. Pressure-normalized fluxes and selectivities were evaluated using pure carbon dioxide and methane. For the spinning conditions used here, the combination of reduced water activity in the bore and high DER produced highly selective membranes. Some selectivities reached about three times the recognized intrinsic value for the polymer. |
| first_indexed | 2025-11-15T20:34:48Z |
| format | Article |
| id | utm-721 |
| institution | Universiti Teknologi Malaysia |
| institution_category | Local University |
| last_indexed | 2025-11-15T20:34:48Z |
| publishDate | 1999 |
| publisher | Elsevier Science Ltd. |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | utm-7212010-10-25T09:57:01Z http://eprints.utm.my/721/ Production of Super Selective Polysulfone Hollow Fiber Membranes for Gas Separation Ismail, A. F. Dunkin, I. R. Gallivan, S. L. Shilton, S. J. TP Chemical technology Polysulfone gas separation hollow fiber membranes were manufactured using a dry/wet spinning process with forced convection in the dry gap. Hollow fibers were produced using two different bore coagulants: one pure water and one with reduced water activity. An optimized multi-component dope was used which proved to be a shear-thinning power-law fluid. For each bore system, membranes were spun at low and high dope extrusion rates (DERs) corresponding to shear rates of around 4000 s21 and 10 000 s21, respectively, at the outer spinneret wall. Plane polarized infrared spectroscopy was used to probe the membrane active layer. Pressure-normalized fluxes and selectivities were evaluated using pure carbon dioxide and methane. For the spinning conditions used here, the combination of reduced water activity in the bore and high DER produced highly selective membranes. Some selectivities reached about three times the recognized intrinsic value for the polymer. Elsevier Science Ltd. 1999-11 Article PeerReviewed Ismail, A. F. and Dunkin, I. R. and Gallivan, S. L. and Shilton, S. J. (1999) Production of Super Selective Polysulfone Hollow Fiber Membranes for Gas Separation. Polymer, 40 (23). pp. 6499-6506. ISSN 0032-3861 http://dx.doi.org/10.1016/S0032-3861(98)00862-3 doi:10.1016/S0032-3861(98)00862-3 |
| spellingShingle | TP Chemical technology Ismail, A. F. Dunkin, I. R. Gallivan, S. L. Shilton, S. J. Production of Super Selective Polysulfone Hollow Fiber Membranes for Gas Separation |
| title | Production of Super Selective Polysulfone Hollow Fiber Membranes for Gas Separation |
| title_full | Production of Super Selective Polysulfone Hollow Fiber Membranes for Gas Separation |
| title_fullStr | Production of Super Selective Polysulfone Hollow Fiber Membranes for Gas Separation |
| title_full_unstemmed | Production of Super Selective Polysulfone Hollow Fiber Membranes for Gas Separation |
| title_short | Production of Super Selective Polysulfone Hollow Fiber Membranes for Gas Separation |
| title_sort | production of super selective polysulfone hollow fiber membranes for gas separation |
| topic | TP Chemical technology |
| url | http://eprints.utm.my/721/ http://eprints.utm.my/721/ http://eprints.utm.my/721/ |