Efficient and reversible capture of SO2 by pyridinium-based ionic liquids
文献类型：期刊论文
| 作者 | Zeng, Shaojuan1,2; Gao, Hongshuai1; Zhang, Xiaochun1; Dong, Haifeng1; Zhang, Xiangping1; Zhang, Suojiang1 |
| 刊名 | CHEMICAL ENGINEERING JOURNAL
 |
| 出版日期 | 2014-09-01 |
| 卷号 | 251期号:1页码:248-256 |
| 关键词 | Pyridinium Ionic liquids Sulfur dioxide Capture Reversible |
| ISSN号 | 1385-8947 |
| 其他题名 | Chem. Eng. J. |
| 中文摘要 | A series of thermally stable pyridinium-based ionic liquids (ILs), including [C4Py][BF4], [C6Py][BF4], [C8Py][BF4], [(C4MPy)-M-3][BF4], [(C6MPy)-M-3][BF4], [(C8MPy)-M-3][BF4], [C4Py][SCN] and [C4Py][Tf2N], were firstly applied as new absorbents for SO2 capture. It was found that among the investigated ILs [C4Py][SCN] has the highest absorption capacity of 0.841 gSO(2) gIL(-1) under ambient conditions, which is much higher than that of the most reported imidazolium-based ILs. The selectivity for SO2/CO2, SO2/N-2 and SO2/O-2 was also studied and the higher selectivity for SO2 to other gases using the [C4Py][SCN] was achieved. Moreover, how the water content affects the absorption capacity of SO2 was further investigated. The absorption mechanism was studied using Fr-IR and NMR spectroscopy, as well as Quantum Chemical calculation and Molecular Dynamic (MD) simulation. It was demonstrated that the physical absorption occurs in pyridinium-based ILs for SO2 capture. Comparing with cation of IL, anion plays a dominant role in SO2 absorption, which was proved both by the interaction enthalpy of IL-SO2 using Quantum Chemical calculation and the experimental results. MD simulation results further confirmed that the higher absorption capacity of SO2 in [C4Py][SCN] is mostly attributed to the stronger electrostatic interaction between the anion and SO2. In addition, the [C4Py][SCN] can still keep the stable absorption performance after five cycles of absorption and desorption, implying the pyridinium-based us show great potentials as cost effective and green absorbents for SO2 capture applications. (C) 2014 Elsevier B.V. All rights reserved. |
| 英文摘要 | A series of thermally stable pyridinium-based ionic liquids (ILs), including [C4Py][BF4], [C6Py][BF4], [C8Py][BF4], [(C4MPy)-M-3][BF4], [(C6MPy)-M-3][BF4], [(C8MPy)-M-3][BF4], [C4Py][SCN] and [C4Py][Tf2N], were firstly applied as new absorbents for SO2 capture. It was found that among the investigated ILs [C4Py][SCN] has the highest absorption capacity of 0.841 gSO(2) gIL(-1) under ambient conditions, which is much higher than that of the most reported imidazolium-based ILs. The selectivity for SO2/CO2, SO2/N-2 and SO2/O-2 was also studied and the higher selectivity for SO2 to other gases using the [C4Py][SCN] was achieved. Moreover, how the water content affects the absorption capacity of SO2 was further investigated. The absorption mechanism was studied using Fr-IR and NMR spectroscopy, as well as Quantum Chemical calculation and Molecular Dynamic (MD) simulation. It was demonstrated that the physical absorption occurs in pyridinium-based ILs for SO2 capture. Comparing with cation of IL, anion plays a dominant role in SO2 absorption, which was proved both by the interaction enthalpy of IL-SO2 using Quantum Chemical calculation and the experimental results. MD simulation results further confirmed that the higher absorption capacity of SO2 in [C4Py][SCN] is mostly attributed to the stronger electrostatic interaction between the anion and SO2. In addition, the [C4Py][SCN] can still keep the stable absorption performance after five cycles of absorption and desorption, implying the pyridinium-based us show great potentials as cost effective and green absorbents for SO2 capture applications. (C) 2014 Elsevier B.V. All rights reserved. |
| WOS标题词 | Science & Technology ; Technology |
| 类目[WOS] | Engineering, Environmental ; Engineering, Chemical |
| 研究领域[WOS] | Engineering |
| 关键词[WOS] | FLUE-GAS ; HIGHLY EFFICIENT ; DESULFURIZATION PROCESS ; DRY-DESULFURIZATION ; BINARY-MIXTURES ; SOLUBILITY ; ABSORPTION ; IMIDAZOLIUM ; CO2 ; TEMPERATURE |
| 收录类别 | SCI |
| 原文出处 | |
| 语种 | 英语 |
| WOS记录号 | WOS:000338802500029 |
| 公开日期 | 2014-08-28 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/11021]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 作者单位 | 1.Chinese Acad Sci, Inst Proc Engn, Beijing Key Lab Ion Liquids Clean Proc, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Coll Chem & Engn, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zeng, Shaojuan,Gao, Hongshuai,Zhang, Xiaochun,et al. Efficient and reversible capture of SO2 by pyridinium-based ionic liquids[J]. CHEMICAL ENGINEERING JOURNAL,2014,251(1):248-256. |
| APA | Zeng, Shaojuan,Gao, Hongshuai,Zhang, Xiaochun,Dong, Haifeng,Zhang, Xiangping,&Zhang, Suojiang.(2014).Efficient and reversible capture of SO2 by pyridinium-based ionic liquids.CHEMICAL ENGINEERING JOURNAL,251(1),248-256. |
| MLA | Zeng, Shaojuan,et al."Efficient and reversible capture of SO2 by pyridinium-based ionic liquids".CHEMICAL ENGINEERING JOURNAL 251.1(2014):248-256. |
入库方式： OAI收割
来源：过程工程研究所
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