Protic ionic liquids extract asphaltenes from direct coal liquefaction residue at room temperature
文献类型：会议论文
| 作者 | Bai, L. ; Nie, Y. ; Li, Y. ; Dong, H. F. ; Zhang, X. P. |
| 出版日期 | 2013 |
| 会议名称 | 6th Asia Pacific Chemical Reaction Engineering Symposium (APCRE) |
| 会议日期 | SEP 18-21, 2011 |
| 会议地点 | Beijing, PEOPLES R CHINA |
| 关键词 | Direct coal liquefaction residue Ionic liquids Asphaltenes Extraction ARGONNE PREMIUM COALS PHYSICOCHEMICAL PROPERTIES SOLVENTS DISSOLUTION COMPONENTS PETROLEUM MIXTURES PYRIDINE OILS NMR |
| 页码 | 94-100 |
| 其他题名 | Fuel Process. Technol. |
| 中文摘要 | Asphaltenes in direct coal liquefaction residue (DCLR) are highly aromatic and polydisperse mixtures, which are important precursors for producing high value-added carbon materials. In this research, a series of protic ionic liquids (PILs) with organic carboxylate anions were synthesized and applied to extract asphaltenes from DCLR at room temperature. The extracts were characterized by elemental analysis, FTIR, C-13-NMR, quinoline insolubles tests and so on. The results show that asphaltenes with the potential of precursors of carbon materials can be separated from DCLR at room temperature using PILs and the solid-liquid separation is carried out facilely due to the lower viscosities of PILs. The influences of PILs structures on extraction yields and atomic ratios of H/C were also investigated. As alkyl chain length of PILs anions increases, extraction yields of asphaltenes increase while H/C ratios decrease. Moreover, extraction yields vary with various cations of PILs and increase according to the order of N-methylimidazolium ([MIM](+)) < triethylammonium ([TEtA](+)) < 3-methylpyridinium ([MPy](+)), but H/C ratios decrease following the order of N-methylimidazolium ([MIM](+)) > triethylammonium ([TEtA](+)) > 3-methylpyridinium ([MPy](+)). The asphaltenes extracted from DCLR with PILs have the excellent properties for preparing carbon materials, such as lower H/C ratios, higher aromaticities, lower sulfur contents and nearly no quinoline insolubles. (C) 2012 Elsevier B.V. All rights reserved. |
| 收录类别 | CPCI |
| 会议网址 | |
| 会议录 | Fuel Processing Technology
 |
| 语种 | 英语 |
| 源URL | [http://ir.ipe.ac.cn/handle/122111/11065]  |
| 专题 | 过程工程研究所_研究所（批量导入） |
| 推荐引用方式 GB/T 7714 |
Bai, L.,Nie, Y.,Li, Y.,et al. Protic ionic liquids extract asphaltenes from direct coal liquefaction residue at room temperature[C]. 见:6th Asia Pacific Chemical Reaction Engineering Symposium (APCRE). Beijing, PEOPLES R CHINA. SEP 18-21, 2011. |
入库方式： OAI收割
来源：过程工程研究所
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