| Autor: |
Mingke Yang, Huishan Wang, Julian Y. Zuo, Chun Deng, Bei Liu, Liya Chai, Kun Li, Han Xiao, Peng Xiao, Xiaohui Wang, Wan Chen, Xiaowan Peng, Yu Han, Zixuan Huang, Baocan Dong, Changyu Sun, Guangjin Chen |
| Rok vydání: |
2021 |
| Předmět: |
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| Zdroj: |
Nature communications. 13(1) |
| ISSN: |
2041-1723 |
| Popis: |
n-butane and isobutane are important petrochemical raw materials. Their separation is challenging because of their similar properties, including boiling point. Here, we report a zeolitic imidazolate framework-8 (ZIF-8)/N,N-Dimethylpropyleneurea (DMPU)-water slurry as sorption material to separate butane mixtures. The isobutane/n-butane selectivity of ZIF-8/DMPU-water slurries is as high as 890 with high kinetic performance, which transcends the upper limit of various separation materials or membranes reported in the literature. More encouragingly, a continuous pilot separation device was established, and the test results show that the purity and recovery ratio of isobutane product are 99.46 mol% and 87%, respectively, which are superior to the corresponding performance (98.56 mol% and 54%) of the industrial distillation tower. To the best of our knowledge, the use of metal-organic frameworks (MOFs) for gas separation in pilot scale remains underexplored, and thus this work provides a step forward to the commercial application of MOFs in gas separation. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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