Zeolitic Imidazolate Framework Membranes for Light Olefin/Paraffin Separation

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 separat...

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Bibliographic Details
Published inCrystals (Basel) Vol. 9; no. 1; p. 14
Main Authors Ma, Xiaoli, Liu, Defei
Format Journal Article
LanguageEnglish
Published Basel MDPI AG 01.01.2019
Subjects
Adsorption
Chemistry
Counterdiffusion
Crystallization
Distillation
Ethane
Ethylene
ethylene/ethane separation
Gas permeation
Ligands
Membrane reactors
Membrane separation
Membranes
Metal-organic frameworks
Microfluidics
Paraffins
Permeability
Polymers
Pore size
Porosity
Propane
Propylene
propylene/propane separation
Separation
Solvents
Synthesis
Thermal stability
Zeolites
zeolitic imidazolate frameworks
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Summary: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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ISSN:2073-4352
2073-4352
DOI:10.3390/cryst9010014