Impact of ionic liquids on silver thermoplastic polyurethane composite membranes for propane/propylene separation |
| |
| Institution: | 1. The QUILL Research Centre, School of Chemistry and Chemical Engineering, Queen’s University, Stranmillis Road, Belfast, Northern Ireland BT9 5AG, UK;2. Department of Chemical Engineering, Texas A&M University at Qatar, P.O. Box 23874, Doha, Qatar;3. Department of Chemical Engineering, Qatar University, P.O. Box 2713, Doha, Qatar;4. Université François Rabelais, Laboratoire PCM2E, Parc de Grandmont, 37200 Tours, France |
| |
| Abstract: | This work describes newly synthesized composite polymeric membranes and their utilization in propane/propylene separation in a gas mixture. The nonporous composite polymers were successfully synthesized by using thermoplastic polyurethane (TPU) and several silver salts/silver salts with ionic liquids (ILs). Our studies showed that silver bis(trifluoromethanesulfonyl)imide (AgTf2N]) containing membranes outperformed other silver salt containing membranes in terms of selectivity. In addition, to this finding, ILs, as additives for the membranes, enhanced the selectivity by facilitating improved coordination of the olefin with the silver ions in the dense composite polymers. |
| |
| Keywords: | Membrane separation Composite polymer Ionic liquids Propane/propylene separation |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
