期刊
CRYSTALS
卷 9, 期 1, 页码 -出版社
MDPI
DOI: 10.3390/cryst9010014
关键词
metal-organic frameworks; zeolitic imidazolate frameworks; membranes; propylene; propane separation; ethylene; ethane separation
资金
- University of Wisconsin-Milwaukee
Propylene/propane and ethylene/ethane separations are performed by energy-intensive distillation processes, and membrane separation may provide substantial energy and capital cost savings. Zeolitic imidazolate frameworks (ZIFs) have emerged as promising membrane materials for olefin/paraffin separation due to their tunable pore size and chemistry property, and excellent chemical and thermal stability. In this review, we summarize the recent advances on ZIF membranes for propylene/propane and ethylene/ethane separations. Membrane fabrication methods such as in situ crystallization, seeded growth, counter-diffusion synthesis, interfacial microfluidic processing, vapor-phase and current-driven synthesis are presented. The gas permeation and separation characteristics and membrane stability are also discussed.
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