Efficient ethylene/ethane separation by rare earth metal-containing ionic liquids in N,N-dimethylformamide
文献类型：期刊论文
| 作者 | Cheng, Yanyan1,2,3,4; Li, Fujian1,2,3; Wu, Qingrong1,3; Peng, Kuilin1,3; Fan, Bangyu1,2,3; Bai, Yinge1,3; Wang, Zhongzhi1,2,3,4; Zhang, Nian1,2,3; Zhang, Xiangping1,2,3,4 |
| 刊名 | SEPARATION AND PURIFICATION TECHNOLOGY
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| 出版日期 | 2023-04-01 |
| 卷号 | 310页码:10 |
| ISSN号 | 1383-5866 |
| 关键词 | Ethylene ethane separation Rare earth metal Ionic liquids Absorption Density functional theory |
| DOI | 10.1016/j.seppur.2023.123094 |
| 英文摘要 | Metal-containing ionic liquids (MILs) have been considered as promising solvents for ethylene/ethane (C2H4/ C2H6) separation. With multiple 4f and 5d empty electronic orbitals, special electronic configuration and abundant electron energy levels, rare earth elements have potential to be great electron acceptor of C2H4. Herein, a new strategy of rare earth metal ionic liquids (REMILs), 1-butyl-3-methylimidazolium tri-fluoromethanesulfonate containing erbium ([Bmim][TFO]/Er(TFO)3) in N, N-dimethylformamide (DMF) was exploited to separate C2H4/C2H6 for the first time. The complexation between Er3+ and C2H4 and interactions in absorbents were adopted to achieve fast and selective C2H4 absorption. The physical properties of the absorbents were measured and studied firstly. The addition of 20 wt% DMF in REMILs was optimized with a decrease in viscosity of 6-7 times at 293 K. The absorption parameters, such as Er3+ concentration, temperature and regeneration of absorbents were also investigated systematically. The results showed that the selectivity of C2H4/ C2H6 was enhanced with increasing Er3+ concentration. The solubility of C2H4 in [Bmim][TFO]/Er(TFO)3 + 20 wt% DMF was 0.95 mg/g with C2H4/C2H6 selectivity of 10 (at 303 K, 0.1 MPa), much higher than that of conventional ILs. The interaction energy (Delta E) of Er3+-C2H4 was more negative than Er3+-C2H6 through density functional theory (DFT). Furthermore, the rare earth absorbents exhibited excellent reversibility after five cycles. In summary, this work provides a potential method for efficient separating C2H4/C2H6 via REMILs in DMF solution. |
| WOS关键词 | DEEP EUTECTIC SOLVENTS ; OLEFIN-PARAFFIN SEPARATION ; PI-COMPLEXATION ; ABSORPTION ; SOLUBILITY ; MEMBRANES ; ETHANE ; MIXTURES ; CHLORIDE ; POLYMER |
| 资助项目 | National Natural Science Foundation of China[22108277] ; Special Research Assistant Project of the Chinese Academy of Sciences ; Innovation Academy for Green Manufacture[IAGM2020DB03] |
| WOS研究方向 | Engineering |
| 语种 | 英语 |
| 出版者 | ELSEVIER |
| WOS记录号 | WOS:000921970100001 |
| 资助机构 | National Natural Science Foundation of China ; Special Research Assistant Project of the Chinese Academy of Sciences ; Innovation Academy for Green Manufacture |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/56863]  |
| 通讯作者 | Li, Fujian; Zhang, Xiangping |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, Beijing Key Lab Ionic Liquids Clean Proc, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Ganjiang Innovat Acad, Ganzhou 341000, Peoples R China 3.Chinese Acad Sci, Innovat Acad Green Manufacture, Beijing 100190, Peoples R China 4.Univ Sci & Technol China, Sch Rare Earths, Ganzhou 341000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Cheng, Yanyan,Li, Fujian,Wu, Qingrong,et al. Efficient ethylene/ethane separation by rare earth metal-containing ionic liquids in N,N-dimethylformamide[J]. SEPARATION AND PURIFICATION TECHNOLOGY,2023,310:10. |
| APA | Cheng, Yanyan.,Li, Fujian.,Wu, Qingrong.,Peng, Kuilin.,Fan, Bangyu.,...&Zhang, Xiangping.(2023).Efficient ethylene/ethane separation by rare earth metal-containing ionic liquids in N,N-dimethylformamide.SEPARATION AND PURIFICATION TECHNOLOGY,310,10. |
| MLA | Cheng, Yanyan,et al."Efficient ethylene/ethane separation by rare earth metal-containing ionic liquids in N,N-dimethylformamide".SEPARATION AND PURIFICATION TECHNOLOGY 310(2023):10. |
入库方式： OAI收割
来源：过程工程研究所
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