Enrichment of Hydrogen from a Hydrogen/Propylene Gas Mixture Using ZIF-8/Water-Glycol Slurry
In this work, zeolitic imidazolate framework-8 (ZIF-8), a subclass of metal organic frameworks (MOFs), was dispersed in a water-glycol solution to form a porous slurry. Using this porous slurry, a tail gas mixture containing hydrogen/propylene was separated. Experiments were performed to investigate...
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MDPI AG
2018-07-01
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| Series: | Energies |
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| Online Access: | http://www.mdpi.com/1996-1073/11/7/1890 |
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| author | Hai Li Xueteng Gao Chongzhi Jia Wan Chen Bei Liu Lanying Yang Changyu Sun Guangjin Chen |
| author_facet | Hai Li Xueteng Gao Chongzhi Jia Wan Chen Bei Liu Lanying Yang Changyu Sun Guangjin Chen |
| author_sort | Hai Li |
| collection | DOAJ |
| description | In this work, zeolitic imidazolate framework-8 (ZIF-8), a subclass of metal organic frameworks (MOFs), was dispersed in a water-glycol solution to form a porous slurry. Using this porous slurry, a tail gas mixture containing hydrogen/propylene was separated. Experiments were performed to investigate the effects of using only the solid ZIF-8 material, a ZIF-8/water slurry, a ZIF-8/glycol slurry, or a ZIF-8/water-glycol slurry on the selectivity of the separation. The experimental results show that the slurry made from ZIF-8/water-glycol (20%) achieves good gas separation. The respective influences of the solid content, initial pressure, and temperature on the separation performance were also investigated in detail. We found that lower temperature, a ZIF-8 mass fraction of 20 wt %, and a higher operation pressure are suitable for the recovering of hydrogen from a H2/C3H6 mixture. The selectivity of C3H6 over H2 reaches 128 at 680 kPa initial pressure. The slurries were completely reusable for at least three cycles. The structure of the ZIF-8 material was not altered after repeated separation, meaning the material can likely be reused more than three times on an industrial scale. |
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| format | Article |
| id | doaj.art-bc585af1e6784a1b8e9fce62b2941bc3 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-13T00:46:59Z |
| publishDate | 2018-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-bc585af1e6784a1b8e9fce62b2941bc32022-12-22T03:09:58ZengMDPI AGEnergies1996-10732018-07-01117189010.3390/en11071890en11071890Enrichment of Hydrogen from a Hydrogen/Propylene Gas Mixture Using ZIF-8/Water-Glycol SlurryHai Li0Xueteng Gao1Chongzhi Jia2Wan Chen3Bei Liu4Lanying Yang5Changyu Sun6Guangjin Chen7State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, ChinaState Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, ChinaState Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, ChinaState Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, ChinaState Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, ChinaState Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, ChinaState Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, ChinaState Key Laboratory of Heavy Oil Processing, China University of Petroleum, Beijing 102249, ChinaIn this work, zeolitic imidazolate framework-8 (ZIF-8), a subclass of metal organic frameworks (MOFs), was dispersed in a water-glycol solution to form a porous slurry. Using this porous slurry, a tail gas mixture containing hydrogen/propylene was separated. Experiments were performed to investigate the effects of using only the solid ZIF-8 material, a ZIF-8/water slurry, a ZIF-8/glycol slurry, or a ZIF-8/water-glycol slurry on the selectivity of the separation. The experimental results show that the slurry made from ZIF-8/water-glycol (20%) achieves good gas separation. The respective influences of the solid content, initial pressure, and temperature on the separation performance were also investigated in detail. We found that lower temperature, a ZIF-8 mass fraction of 20 wt %, and a higher operation pressure are suitable for the recovering of hydrogen from a H2/C3H6 mixture. The selectivity of C3H6 over H2 reaches 128 at 680 kPa initial pressure. The slurries were completely reusable for at least three cycles. The structure of the ZIF-8 material was not altered after repeated separation, meaning the material can likely be reused more than three times on an industrial scale.http://www.mdpi.com/1996-1073/11/7/1890porous slurryadsorptionZIF-8separationhydrogen |
| spellingShingle | Hai Li Xueteng Gao Chongzhi Jia Wan Chen Bei Liu Lanying Yang Changyu Sun Guangjin Chen Enrichment of Hydrogen from a Hydrogen/Propylene Gas Mixture Using ZIF-8/Water-Glycol Slurry Energies porous slurry adsorption ZIF-8 separation hydrogen |
| title | Enrichment of Hydrogen from a Hydrogen/Propylene Gas Mixture Using ZIF-8/Water-Glycol Slurry |
| title_full | Enrichment of Hydrogen from a Hydrogen/Propylene Gas Mixture Using ZIF-8/Water-Glycol Slurry |
| title_fullStr | Enrichment of Hydrogen from a Hydrogen/Propylene Gas Mixture Using ZIF-8/Water-Glycol Slurry |
| title_full_unstemmed | Enrichment of Hydrogen from a Hydrogen/Propylene Gas Mixture Using ZIF-8/Water-Glycol Slurry |
| title_short | Enrichment of Hydrogen from a Hydrogen/Propylene Gas Mixture Using ZIF-8/Water-Glycol Slurry |
| title_sort | enrichment of hydrogen from a hydrogen propylene gas mixture using zif 8 water glycol slurry |
| topic | porous slurry adsorption ZIF-8 separation hydrogen |
| url | http://www.mdpi.com/1996-1073/11/7/1890 |
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