| Titre : | Carbon dioxide - selective membranes for high - pressure synthesis gas purification (2011) |
| Auteurs : | He Bai, Auteur ; W. S. Winston Ho, Auteur |
| Type de document : | Article : texte imprimé |
| Dans : | Industrial & engineering chemistry research (Vol. 50 N° 21, Novembre 2011) |
| Article en page(s) : | pp. 12152-12161 |
| Note générale : | Chimie industrielle |
| Langues : | Anglais |
| Tags : | Gas purification Synthesis gas Carbon dioxide |
| Résumé : | The CO2-selective facilitated transport membranes baced on cross-linked poly(vinyl alcohol) (PVA) and sulfonated polybenzimidazole (SPBI) matrixes were synthesized and characterized for high-pressure synthesis gas purification. The cross-linked PVA-based membranes showed CO2/H2 selectivity higher than 30 and CO2 permeability as high as close to 1000 barrers for a membrane thickness of 15-30 μm at a feed pressure of 220 psia, which are desirable for the intended gas purification. The SPBI-based membranes generally showed lower separation performance because of their lower hydrophilicity. The cross-linked PVA-based membranes showed the best separation performance at 106 °C. However, the SPBI-1 copolymer-based membranes exhibited the best separation performance at 100 °C because of also their lower hydrophilicity. |
| DEWEY : | 660 |
| ISSN : | 0888-5885 |
| En ligne : | http://cat.inist.fr/?aModele=afficheN&cpsidt=24697532 |
