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Experimental and Theoretical Analysis of the Influence of Different Linker Molecules in Imidazolate Frameworks Potsdam (IFP-n) on the Separation of Olefin-Paraffin Mixtures

  • Four metal organic frameworks with similar topology but different chemical environment inside the pore structure, namely, IFP-1, IFP-3, IFP-5, and IFP-7, have been investigated with respect to the separation potential for olefin paraffin mixtures as well as the influence of the different linkers on adsorption properties using experiments and Monte Carlo simulations. All IFP structures show a higher adsorption of ethane compared to ethene with the exception of IFP-7 which shows no selectivity in breakthrough experiments. For propane/propane separation, all adsorbents show a higher adsorption for the olefin. The experimental results agree quite well with the simulated values except for the IFP-7, which is presumably due to the flexibility of the structure. Moreover, the experimental and simulated isotherms were confirmed with breakthrough experiments that render IFP-1, IFP-3, and IFP-5 as suitable for the purification of ethene from ethane.

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Author:Maximilian Hovestadt, Stephan Bendt, Suvendu Sekhar Mondal, Karsten BehrensGND, Florian Reif, Merle Dopken, Hans-Jürgen Holdt, Frerich J. Keil, Martin Hartmann
Pubmed Id:http://www.ncbi.nlm.nih.gov/pubmed?term=28793757
Parent Title (English):Langmuir
Publisher:American Chemical Society
Place of publication:Washington
Document Type:Article
Year of first Publication:2017
Year of Completion:2017
Release Date:2020/04/20
First Page:11170
Last Page:11179
Funder:German Science Foundation (Deutsche Forschungsgemeinschaft, DFG) [KE 464/12-3, HA 2527/12-3]
Organizational units:Mathematisch-Naturwissenschaftliche Fakultät / Institut für Chemie
Peer Review:Referiert