期刊
CHEMICAL ENGINEERING JOURNAL
卷 333, 期 -, 页码 276-279出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.cej.2017.09.125
关键词
Pebax-1657; Facilitated transport; Olefin; Membrane; Separation
资金
- Energy Efficiency & Resources grant from the Korea Institute of Energy Technology Evaluation and Planning (KETEP) - Korean Government via the Ministry of Trade, Industry and Energy [20122010100040]
- Basic Science Research Program through the National Research Foundation of Korea (NRF) - Ministry of Science, ICT and Future Planning [2017R1D1A1B03032583]
Poly (ether-block-amide) resin-1657 (Pebax-1657)/AgBF4/Al(NO3)(3) electrolyte membranes were prepared for olefin/paraffin separation. To solve the low permeance of facilitated transport membranes consisting of polymer/AgBF4/Al(NO3)(3), Pebax-1657 to have 40% amide groups and 60% ether groups was selected as polymer matrix for high permeance. As a result, the selectivity (propylene/propane) and mixed gas permeance of Pebax-1657/AgBF4/Al(NO3)(3) electrolyte membranes were observed as 8.8 and 22.5 GPU, respectively. The enhanced permeance compared to the performance reported in previous membranes consisting of polymer/AgBF4/Al(NO3)(3) was attributable to the flexible segments of ether groups in Pebax-1657. Furthermore, the prepared Pebax-1657/AgBF4/Al(NO3)(3) electrolyte membranes showed the long-term stability by stabilizing effect of Al(NO3)(3) on silver ions as olefin carriers.
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