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| 离子液体脱除汽油中含硫化合物的研究 | |
| 引用本文： | 赵地顺,周二鹏,王建龙,尹继丰.离子液体脱除汽油中含硫化合物的研究[J].化学工程,2010,38(1). |
| 作者姓名： | 赵地顺 周二鹏 王建龙 尹继丰 |
| 作者单位： | 1. 天津大学,化工学院,天津,300072;河北科技大学,化学与制药工程学院,河北,石家庄,050018 2. 天津大学,化工学院,天津,300072 3. 河北科技大学,化学与制药工程学院,河北,石家庄,050018 |
| 基金项目： | 国家自然科学基金资助项目(20576026) |
| 摘 要： | Brφnsted酸性吡咯烷酮离子液体N-甲基-2-吡咯烷酮氟硼酸盐(Hnmp]BF4)为萃取剂和催化剂,质量分数30%双氧水为氧化剂,将萃取脱硫和氧化脱硫相结合,对含有噻吩的模型油和FCC汽油进行萃取氧化脱硫研究。考察了氧与硫摩尔比、温度等对脱硫率的影响。结果表明:Hnmp]BF4既是萃取剂又是催化剂,与H2O2作用产生的羟基自由基能将模型油中的噻吩和FCC汽油中的含硫化合物氧化,离子液体再生4次后脱硫性能开始下降,汽油的脱硫率达到82.7%。 |
| 关 键 词： | 离子液体 过氧化氢 萃取 噻吩 氧化脱硫 |
Desulfurization of gasoline with ionic liquid |
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| ZHAO Di-shun,ZHOU Er-peng,WANG Jian-long,YIN Ji-feng.Desulfurization of gasoline with ionic liquid[J].Chemical Engineering,2010,38(1). | |
| Authors: | ZHAO Di-shun ZHOU Er-peng WANG Jian-long YIN Ji-feng |
| Affiliation: | 1.School of Chemical Engineering and Technology;Tianjin University;Tianjin 300072;China;2.School of Chemical and Pharmaceutical Engineering;Hebei University of Science and Technology;Shijiazhuang 050018;Hebei Province;China |
| Abstract: | The oxidative desulfurization of FCC gasoline and model oil containing thiophene was studied, and the mass fraction 30% aqueous solution of H_2O_2 was used as oxidant. Thiophene was removed from the model oil by a combination of both chemical oxidation and solvent extraction with the Br(o)nsted acidic ionic liquids N-methyl-pyrrolidonium tetraflouoroborate (Hnmp]BF4). The effects of molar ratio of oxygen to sulfur and the reaction temperature on thiophene oxidation were investigated. The results show that Hnmp]BF_4 is as both extractant and catalyst. The hydroxyl free radicals produced in the H_2O_2-Hnmp]BF_4 system can oxidize organosulfur compounds in the model oil and gasoline. The ionic liquid Hnmp]BF_4 can be recycled 4 times without a significant decrease in desulfurization. The desulfurization of gasoline can reach 82.7%. |
| Keywords: | ionic liquids hydrogen peroxide extraction thiophene oxidative desulfurization |
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