| 离子液体；石油沥青质的新型溶剂 |
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| 引用本文： | 刘艳升,胡玉峰,王海波,徐春明,纪德军,孙研,郭天民. 离子液体；石油沥青质的新型溶剂[J]. 中国化学工程学报, 2005, 13(4): 564-567 |
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| 作者姓名： | 刘艳升 胡玉峰 王海波 徐春明 纪德军 孙研 郭天民 |
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| 作者单位： | [1]State Key Laboratory of Heavy Oil Processing, University of Petroleum, Beijing 102200, China [2]High Pressure Fluid Phase Behavior ＆ Property Research Laboratory, University of Petroleum, Beijing 102200, China |
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| 基金项目： | 国家自然科学基金，CNPC创新基金 |
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| 摘 要： | The dissolution of petroleum asphaltenes with ionic liquids is studied for the first time. The results show that the ionic liquids could be used as novel solvents for asphaltenes. The important parameters governing the ability of ionic liquids for dissolution of asphaltenes are discussed. It is found that, the ionic liquids based on the cations containing a conjugated aromatic core or the anions which are strong hydrogen bond acceptors are most effective, whereas the ionic liquids containing ＇non coordinating＇ anions such as [BF4]^- and [PF6]^- are nonsolvents for asphaltenes. Increase in the effective anion charge density enhances the ability of ionic liquids to break the extensive asphaltene associations and thus enhances the solubility of asphaltenes in the ionic liquid. The dissolution ability of ionic liquid decreases apparently with increasing the substituted alkyl chain length of its cationic head ring. Temperature is found to play an important role on dissolution of asphaltenes, and the dissolution can be significantly imoroved bv microwave heatinz.
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| 关 键 词： | 石油 沥青 溶剂 离子液体 |
| 收稿时间： | 2004-11-24 |
| 修稿时间： | 2004-11-242005-04-22 |
Ionic Liquids: Novel Solvents for Petroleum Asphaltenes |
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| LIU,nbsp,Yansheng,HU,nbsp,Yufeng,WANG,nbsp,Haibo,XU,nbsp,Chunming,JI,nbsp,Dejun,SUN,nbsp,Yan,GUO,nbsp,Tianmin. Ionic Liquids: Novel Solvents for Petroleum Asphaltenes[J]. Chinese Journal of Chemical Engineering, 2005, 13(4): 564-567 |
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| Authors: | LIU Yansheng HU Yufeng WANG Haibo XU Chunming JI Dejun SUN Yan GUO Tianmin |
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| Affiliation: | LiuYanSheng;HuYuFeng;WangHaiBo;XuChunMing;JiDeJun;SunYan;GuoTianMin |
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| Abstract: | The dissolution of petroleum asphaltenes with ionic liquids is studied for the first time. The results show that the ionic liquids could be used as novel solvents for asphaltenes. The important parameters governing the ability of ionic liquids for dissolution of asphaltenes are discussed. It is found that, the ionic liquids based on the cations containing a conjugated aromatic core or the anions which are strong hydrogen bond acceptors are most for asphaltenes. Increase in the effective anion charge density enhances the ability of ionic liquids to break the extensive asphaltene associations and thus enhances the solubility of asphaltenes in the ionic liquid. The dissolution ability of ionic liquid decreases apparently with increasing the substituted alkyl chain length of its cationic head ring. Temperature is found to play an important role on dissolution of asphaltenes, and the dissolution can be significantly improved by microwave heating. |
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| Keywords: | asphaltenes ionic liquids solvents |
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