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| 离子液体的结构及其汽油萃取脱硫性能 | |
| 引用本文： | 张成中,黄崇品,李建伟,乔聪震.离子液体的结构及其汽油萃取脱硫性能[J].化学研究,2005,16(1):23-25. |
| 作者姓名： | 张成中 黄崇品 李建伟 乔聪震 |
| 作者单位： | 1. 中国石油锦州石油化工公司,辽宁,锦州,121001 2. 北京化工大学,可控化学反应科学与技术基础教育部重点实验室,北京,100029 3. 河南大学,化学化工学院,河南,开封,475001 |
| 基金项目： | 国家自然科学基金重大项目(20490209). |
| 摘 要： | 用不同金属氯化物与氯代甲基咪唑合成离子液体,采用快原子轰击谱测定了这些离子液体的结构,并评价了这些离子液体对汽油萃取脱硫的能力.实验结果表明,由CuCl合成的离子液体中存在稳定的CuCl-2 ,Cu2Cl-3 和Cu3Cl-4 阴离子.这些阴离子可能通过Cu(I)与S的π络合作用而使离子液体具有较高的萃取脱硫效率.经六次萃取后,汽油中的硫含量可以从 650 μg·g-1降至 20~30μg·g-1. |
| 关 键 词： | 离子液体 脱硫 汽油 萃取 |
| 文章编号： | 1008-1011(2005)01-0023-03 |
| 修稿时间： | 2004年12月20 |
Structures and Extractive Desulfurization Ability of Ionic Liquids |
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| ZHANG Cheng-zhong,HUANG Chong-pin,LI Jian-wei,QIAO Cong-zhen.Structures and Extractive Desulfurization Ability of Ionic Liquids[J].Chemical Research,2005,16(1):23-25. | |
| Authors: | ZHANG Cheng-zhong HUANG Chong-pin LI Jian-wei QIAO Cong-zhen |
| Affiliation: | ZHANG Cheng-zhong~1,HUANG Chong-pin~2,LI Jian-wei~2,QIAO Cong-zhen~3 |
| Abstract: | Different ionic liquids were synthesized by mixing 1-butyl-3-methylimidazolium chloride with different metal chlorides and their structures were studied by fast atom bombardment mass spectrometry. It was found that Cu(I) anionic species like CuCl~-_2, Cu_2Cl~-_3 and Cu_3Cl~-_(4) existed in the ionic liquid and these anions were moisture-insensitive and stable in the air. CuCl based ionic liquid exhibited remarkable desulfurization ability in desulfurization of gasoline when used as extraction absorbent. After six stages of extraction, the sulfur content in gasoline was reduced to 20 μg·g~(-1)～30μg·g~(-1) from 650μg·g~(-1). Such effectivity of sulfur removal by 2CuCl/BMImCl ionic liquids may be contributed to the π-complexation of Cu(I) with thiophene, which showed a promising approach for deep desulfurization of motor fuel. |
| Keywords: | ionic liquids desulfurization gasoline extraction |
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