| Journal: | Anais da Academia Brasileira de Ciencias |
| Database: | PERIÓDICA |
| System number: | 000420312 |
| ISSN: | 0001-3765 |
| Authors: | Biondo, Lucas D1 Duarte, Jocelet1 Zeni, Mara1 Godinho, Marcelo1 |
| Institutions: | 1Caxias do Sul University, Exact Sciences Center and Technologies, Caxias do Sul, Rio Grande do Sul. Brasil |
| Year: | 2018 |
| Season: | Jun |
| Volumen: | 90 |
| Number: | 2 |
| Pages: | 1855-1864 |
| Country: | Brasil |
| Language: | Inglés |
| Document type: | Artículo |
| Approach: | Analítico |
| English 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 CO 2 permeability through membrane was 18.8 Barrer at 35°C and 2 bar pressure, and this relationship between the pressure and the CO 2 permeability was described adequately by Dual-mode model. The absence of CH 4 permeability at 2 and 3 bar pressure, qualifies the PSf membrane for gases separation with high selectivity in this range |
| Disciplines: | Química, Ingeniería |
| Keyword: | Química de polímeros, Ingeniería química, Membranas asimétricas, Permeabilidad CO2 /CH4, Modelo de modo dual, Polisulfonas |
| Keyword: | Polymer chemistry, Chemical engineering, Asymmetric membranes, CO2/CH4 permeability, Dual-mode model, Polysulfone |
| Full text: | Texto completo (Ver PDF) |
