Amine-functionalized (Al) MIL-53/VTEC™ mixed-matrix membranes for H2/CO2 mixture separations at high pressure and high temperature
| Autor: | Grace Jones D. Kalaw, Kenneth J. Balkus, Edson V. Perez, John P. Ferraris, Inga H. Musselman |
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| Rok vydání: | 2017 |
| Předmět: |
Mixed matrix
Chemistry Analytical chemistry Filtration and Separation 02 engineering and technology Permeation 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Biochemistry 0104 chemical sciences Membrane Permeability (electromagnetism) High pressure Barrer General Materials Science Amine gas treating Physical and Theoretical Chemistry 0210 nano-technology |
| Zdroj: | Journal of Membrane Science. 530:201-212 |
| ISSN: | 0376-7388 |
| DOI: | 10.1016/j.memsci.2017.02.003 |
| Popis: | VTEC™ PI-1388 and 20 wt% (Al) NH2-MIL-53/VTEC™ PI-1388 mixed-matrix membranes (MMMs) with different thicknesses were tested for gas permeation of H2 and CO2 from 5 to 30 bar and from 35 to 300 °C. 50/50 H2/CO2 mixtures were also tested at 30 bar and 250 °C with stage cuts that ranged from 0.05 to 1. Gas permeation data show that the affinity of (Al) NH2-MIL-53 for VTEC™ PI-1388 is strong enough to perform gas separations under these conditions. At 30 bar and at temperatures above 200 °C, the performance of the MMMs for H2/CO2 separation improved significantly with increasing temperature. Specifically, the H2 permeability of the MMM at 300 °C increased by 70% with respect to that of VTEC™ PI-1388 (VTEC™ PI-1388: H2 = 85 Barrer, H2/CO2 = 4.0; MMM: H2 = 144 Barrer, H2/CO2 = 5.8). Gas mixture separations using VTEC™ PI-1388 and the MMM depended on the stage cut and reached a maximum H2/CO2 separation of 7.2 for VTEC™ PI-1388 and 7.5 for the MMM at a stage cut of 0.05. |
| Databáze: | OpenAIRE |
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