Continuous Separation of Light Olefin/Paraffin Mixtures on ZIF-4 by Pressure Swing Adsorption and Membrane Permeation
In this study, two zeolitic imidazolate frameworks (ZIFs) called ZIF-4 and ZIF-zni (zni is the network topology) were characterized by sorption studies regarding their paraffin/olefin separation potential. In particular, equilibrated pure and mixed gas adsorption isotherms of ethane and ethene were...
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| Format: | Article |
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MDPI AG
2018-04-01
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| Series: | Molecules |
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| Online Access: | http://www.mdpi.com/1420-3049/23/4/889 |
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| author | Maximilian Hovestadt Sebastian Friebe Lailah Helmich Marcus Lange Jens Möllmer Roger Gläser Alexander Mundstock Martin Hartmann |
| author_facet | Maximilian Hovestadt Sebastian Friebe Lailah Helmich Marcus Lange Jens Möllmer Roger Gläser Alexander Mundstock Martin Hartmann |
| author_sort | Maximilian Hovestadt |
| collection | DOAJ |
| description | In this study, two zeolitic imidazolate frameworks (ZIFs) called ZIF-4 and ZIF-zni (zni is the network topology) were characterized by sorption studies regarding their paraffin/olefin separation potential. In particular, equilibrated pure and mixed gas adsorption isotherms of ethane and ethene were recorded at 293 K up to 3 MPa. ZIF-4 exhibits selectivities for ethane in the range of 1.5–3, which is promising for continuous pressure swing adsorption (PSA). ZIF-4 shows high cycle stability with promising separation potential regarding ethane, which results in purification of the more industrial desired olefin. Furthermore, both ZIF materials were implemented in Matrimid to prepare a mixed matrix membrane (MMM) and were used in the continuous separation of a propane/propene mixture. The separation performance of the neat polymer is drastically increased after embedding porous ZIF-4 crystals in the Matrimid matrix, especially at higher feed pressures (3–5 barg). Due to the smaller kinetic diameter of the olefin, the permeability is higher compared to the paraffin. |
| first_indexed | 2024-04-12T07:33:45Z |
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| id | doaj.art-7308a7d5edd94783a73e2eb47db5689b |
| institution | Directory Open Access Journal |
| issn | 1420-3049 |
| language | English |
| last_indexed | 2024-04-12T07:33:45Z |
| publishDate | 2018-04-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Molecules |
| spelling | doaj.art-7308a7d5edd94783a73e2eb47db5689b2022-12-22T03:42:00ZengMDPI AGMolecules1420-30492018-04-0123488910.3390/molecules23040889molecules23040889Continuous Separation of Light Olefin/Paraffin Mixtures on ZIF-4 by Pressure Swing Adsorption and Membrane PermeationMaximilian Hovestadt0Sebastian Friebe1Lailah Helmich2Marcus Lange3Jens Möllmer4Roger Gläser5Alexander Mundstock6Martin Hartmann7Erlangen Catalysis Resource Center (ECRC), Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Egerlandstr. 3, 91058 Erlangen, GermanyInstitute of Physical Chemistry and Electrochemistry, Leibniz University Hannover, Callinstrasse 3A, 30167 Hannover, GermanyInstitute of Physical Chemistry and Electrochemistry, Leibniz University Hannover, Callinstrasse 3A, 30167 Hannover, GermanyInstitut für Nichtklassische Chemie e.V. (INC), Permoserstraße 15, 04318 Leipzig, GermanyInstitut für Nichtklassische Chemie e.V. (INC), Permoserstraße 15, 04318 Leipzig, GermanyInstitut für Nichtklassische Chemie e.V. (INC), Permoserstraße 15, 04318 Leipzig, GermanyInstitute of Physical Chemistry and Electrochemistry, Leibniz University Hannover, Callinstrasse 3A, 30167 Hannover, GermanyErlangen Catalysis Resource Center (ECRC), Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Egerlandstr. 3, 91058 Erlangen, GermanyIn this study, two zeolitic imidazolate frameworks (ZIFs) called ZIF-4 and ZIF-zni (zni is the network topology) were characterized by sorption studies regarding their paraffin/olefin separation potential. In particular, equilibrated pure and mixed gas adsorption isotherms of ethane and ethene were recorded at 293 K up to 3 MPa. ZIF-4 exhibits selectivities for ethane in the range of 1.5–3, which is promising for continuous pressure swing adsorption (PSA). ZIF-4 shows high cycle stability with promising separation potential regarding ethane, which results in purification of the more industrial desired olefin. Furthermore, both ZIF materials were implemented in Matrimid to prepare a mixed matrix membrane (MMM) and were used in the continuous separation of a propane/propene mixture. The separation performance of the neat polymer is drastically increased after embedding porous ZIF-4 crystals in the Matrimid matrix, especially at higher feed pressures (3–5 barg). Due to the smaller kinetic diameter of the olefin, the permeability is higher compared to the paraffin.http://www.mdpi.com/1420-3049/23/4/889ZIF-4olefin/paraffin separationpressure swing adsorption (PSA)membrane permeation |
| spellingShingle | Maximilian Hovestadt Sebastian Friebe Lailah Helmich Marcus Lange Jens Möllmer Roger Gläser Alexander Mundstock Martin Hartmann Continuous Separation of Light Olefin/Paraffin Mixtures on ZIF-4 by Pressure Swing Adsorption and Membrane Permeation Molecules ZIF-4 olefin/paraffin separation pressure swing adsorption (PSA) membrane permeation |
| title | Continuous Separation of Light Olefin/Paraffin Mixtures on ZIF-4 by Pressure Swing Adsorption and Membrane Permeation |
| title_full | Continuous Separation of Light Olefin/Paraffin Mixtures on ZIF-4 by Pressure Swing Adsorption and Membrane Permeation |
| title_fullStr | Continuous Separation of Light Olefin/Paraffin Mixtures on ZIF-4 by Pressure Swing Adsorption and Membrane Permeation |
| title_full_unstemmed | Continuous Separation of Light Olefin/Paraffin Mixtures on ZIF-4 by Pressure Swing Adsorption and Membrane Permeation |
| title_short | Continuous Separation of Light Olefin/Paraffin Mixtures on ZIF-4 by Pressure Swing Adsorption and Membrane Permeation |
| title_sort | continuous separation of light olefin paraffin mixtures on zif 4 by pressure swing adsorption and membrane permeation |
| topic | ZIF-4 olefin/paraffin separation pressure swing adsorption (PSA) membrane permeation |
| url | http://www.mdpi.com/1420-3049/23/4/889 |
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