دورية أكاديمية
A Dual-mode model interpretation of CO2/CH4 permeability in polysulfone membranes at low pressures
| العنوان: | A Dual-mode model interpretation of CO2/CH4 permeability in polysulfone membranes at low pressures |
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| المؤلفون: | LUCAS D. BIONDO, JOCELEI DUARTE, MARA ZENI, MARCELO GODINHO |
| المصدر: | Anais da Academia Brasileira de Ciências, Vol 90, Iss 2, Pp 1855-1864 |
| بيانات النشر: | Academia Brasileira de Ciências. |
| المجموعة: | LCC:Science |
| مصطلحات موضوعية: | asymmetric membranes, CO2/CH4 permeability, Dual-mode model, polysulfone, Science |
| الوصف: | ABSTRACT An asymmetric membrane of polysulfone (PSf) was synthesized by phase inversion method. Permeation experiments were carried out between 2 to 5 bar pressure, and at temperatures 20 to 45°C. The dense-selective layer of PSf membrane presents regular thickness (about 5 µm), and was not possible to observe the formation of macrovoids in porous layer. The CO2 permeability through membrane was 18.8 Barrer at 35°C and 2 bar pressure, and this relationship between the pressure and the CO2 permeability was described adequately by Dual-mode model. The absence of CH4 permeability at 2 and 3 bar pressure, qualifies the PSf membrane for gases separation with high selectivity in this range. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 1678-2690 0001-3765 |
| Relation: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652018000401855&lng=en&tlng=en; https://doaj.org/toc/1678-2690 |
| DOI: | 10.1590/0001-3765201820170221 |
| URL الوصول: | https://doaj.org/article/ada8a4924c0349b2ac9f30febe014f1f |
| رقم الأكسشن: | edsdoj.8a4924c0349b2ac9f30febe014f1f |
| قاعدة البيانات: | Directory of Open Access Journals |
| تدمد: | 16782690 00013765 |
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| DOI: | 10.1590/0001-3765201820170221 |