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Adsorption and Diffusion – Basis for Molecular Understanding of Permeation through Molecular Sieve Membranes
In three case studies, (i) 1‐butene/i‐butene separation on a ZSM‐5 membrane, (ii) carbon dioxide/methane, and (iii) ethene/ethane separations on a zeolitic imidazolate framework 8 (ZIF‐8) type metal organic framework (MOF) membrane, it is demonstrated that the membrane selectivity for the separation of a gas mixtures can be well described and even predicted by the interplay of mixture adsorption and mixture diffusion according to the simple relation membrane selectivity = adsorption selectivity × diffusion selectivity. The mixed gas adsorption and diffusion data which are necessary for the above calculation can be derived cost and time effective by sorption uptake/desorption studies on giant single crystals with IR microscopy (IRM) detection.
Adsorption and Diffusion – Basis for Molecular Understanding of Permeation through Molecular Sieve Membranes
In three case studies, (i) 1‐butene/i‐butene separation on a ZSM‐5 membrane, (ii) carbon dioxide/methane, and (iii) ethene/ethane separations on a zeolitic imidazolate framework 8 (ZIF‐8) type metal organic framework (MOF) membrane, it is demonstrated that the membrane selectivity for the separation of a gas mixtures can be well described and even predicted by the interplay of mixture adsorption and mixture diffusion according to the simple relation membrane selectivity = adsorption selectivity × diffusion selectivity. The mixed gas adsorption and diffusion data which are necessary for the above calculation can be derived cost and time effective by sorption uptake/desorption studies on giant single crystals with IR microscopy (IRM) detection.
Adsorption and Diffusion – Basis for Molecular Understanding of Permeation through Molecular Sieve Membranes
Chmelik, Christian (author) / Voß, Hartwig (author) / Bux, Helge (author) / Caro, Jürgen (author)
Chemie Ingenieur Technik ; 83 ; 104-112
2011-01-01
9 pages
Article (Journal)
Electronic Resource
English
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