期刊
JOURNAL OF MEMBRANE SCIENCE
卷 390, 期 -, 页码 93-98出版社
ELSEVIER
DOI: 10.1016/j.memsci.2011.11.024
关键词
ZIF-8; ZIF membrane; Molecular sieving; Propylene/propane separation; Hydrothermal seeded growth
资金
- King Abdullah University of Science and Technology (KAUST)
The separation of propylene/propane mixtures is one of the most important but challenging processes in the petrochemical industry. A novel zeolitic imidazole framework (ZIF-8) membrane prepared by a facile hydrothermal seeded growth method showed excellent separation performances for a wide range of propylene/propane mixtures. The membrane showed a permeability of propylene up to 200 barrers and a propylene to propane separation factor up to 50 at optimal separation conditions, well surpassing the upper-bound trade-off lines of existing polymer and carbon membranes. The experimental data also showed that the membranes had excellent reproducibility, long-term stability and thermal stability. (C) 2011 Elsevier B.V. All rights reserved.
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