Extraction of Asphaltenes from Direct Coal Liquefaction Residue by Dialkylphosphate Ionic Liquids
文献类型：期刊论文
| 作者 | Nie, Yi; Bai, Lu; Dong, Haifeng; Zhang, Xiangping; Zhang, Suojiang |
| 刊名 | SEPARATION SCIENCE AND TECHNOLOGY
 |
| 出版日期 | 2012 |
| 卷号 | 47期号:2页码:386-391 |
| 关键词 | asphaltenes dialkylphosphate ionic liquids direct coal liquefaction residue extraction |
| ISSN号 | 0149-6395 |
| 通讯作者 | Zhang, SJ |
| 英文摘要 | Asphaltenes in direct coal liquefaction residue (DCLR) are important precursors for the preparation of carbon materials. Some traditional polar hydrocarbon solvents show the ability to extract asphaltenes from DCLR, but these solvents are volatile, toxic, and difficult to recycle. Dialkylphosphate ionic liquids (ILs) have been demonstrated to have the ability to extract asphaltenes fractions from DCLR environmentally friendly. In order to understand the relationship between the extractive performance and the structure of cations and anions of ILs, a series of N,N-dialkylimidazolium dialkylphosphate ILs were synthesized and used to extract asphaltenes from DCLR. The extracts were characterized by Elemental Analysis, FT-IR, C-13-NMR, etc. The results show that it is feasible to extract asphaltenes from DCLR by N, N-dialkylimidazolium dialkylphosphate ILs. The alkyl chain length of cations and anions of the ILs is one factor that influences the extraction yield and the physicochemical characteristics of the extracted asphaltenes, such as the atomic ratio of H/C, true density, aromaticity, and so on. The alkyl chain length of ILs might be modified successfully for controlling the physicochemical characteristics of the extracts from DCLR. |
| WOS标题词 | Science & Technology ; Physical Sciences ; Technology |
| 类目[WOS] | Chemistry, Multidisciplinary ; Engineering, Chemical |
| 研究领域[WOS] | Chemistry ; Engineering |
| 关键词[WOS] | ORGANIC-SOLVENTS ; DESULFURIZATION ; DISSOLUTION ; SIMULATION ; DILUTION ; NMR |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000302412700025 |
| 公开日期 | 2013-10-22 |
| 版本 | 出版稿 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/3855]  |
| 专题 | 过程工程研究所_多相复杂系统国家重点实验室 |
| 作者单位 | Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Nie, Yi,Bai, Lu,Dong, Haifeng,et al. Extraction of Asphaltenes from Direct Coal Liquefaction Residue by Dialkylphosphate Ionic Liquids[J]. SEPARATION SCIENCE AND TECHNOLOGY,2012,47(2):386-391. |
| APA | Nie, Yi,Bai, Lu,Dong, Haifeng,Zhang, Xiangping,&Zhang, Suojiang.(2012).Extraction of Asphaltenes from Direct Coal Liquefaction Residue by Dialkylphosphate Ionic Liquids.SEPARATION SCIENCE AND TECHNOLOGY,47(2),386-391. |
| MLA | Nie, Yi,et al."Extraction of Asphaltenes from Direct Coal Liquefaction Residue by Dialkylphosphate Ionic Liquids".SEPARATION SCIENCE AND TECHNOLOGY 47.2(2012):386-391. |
入库方式： OAI收割
来源：过程工程研究所
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