Dual-layer hollow fibers for gas separation processes produced by quadruple spinning
| Autor: | Rafael Aislan Amaral, Cristiano Piacsek Borges, Alberto Claudio Habert, N. R. J-D. Mermier |
|---|---|
| Rok vydání: | 2015 |
| Předmět: |
chemistry.chemical_classification
Chemistry Engenharia química Process Chemistry and Technology General Chemical Engineering Filtration and Separation 02 engineering and technology General Chemistry Polymer 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences 0104 chemical sciences chemistry.chemical_compound Chemical engineering Membrane Polymer chemistry Extrusion Fiber Gas separation 0210 nano-technology Layer (electronics) Spinning Polyurethane |
| Zdroj: | Repositório Institucional da UFRGS Universidade Federal do Rio Grande do Sul (UFRGS) instacron:UFRGS |
| ISSN: | 1520-5754 0149-6395 |
| DOI: | 10.1080/01496395.2015.1119851 |
| Popis: | A novel quadruple spinneret to produce dual-layer hollow fiber membranes by simultaneous spinning of two polymer solutions, using the dual precipitation bath technique is proposed. Hollow fibers aimed at gas separation processes were prepared in extrusion system specifically designed and built for this purpose. A polyurethane polymer was selected as the selective layer (outer-layer), while polyethersulfone was defined as the support (inner-layer). Activated carbon powder was added into the PU solution for further improvement of the transport properties. The hollow fibers showed good adhesion between the polymer layers and a defect-free selective layer. Representative results include a CO2/N2 selectivity of 43. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|