| 基于离子液体氧化-萃取一步脱除二苯并噻吩的研究 |
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| 引用本文： | 刘习文,黎俊波,曹灿灿,余响林,潘志权.基于离子液体氧化-萃取一步脱除二苯并噻吩的研究[J].武汉大学学报(理学版),2012,58(4):291-296. |
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| 作者姓名： | 刘习文 黎俊波 曹灿灿 余响林 潘志权 |
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| 作者单位： | 1. 武汉工程大学绿色化工过程教育部重点实验室,湖北武汉430073／武汉工程大学化工与制药学院,湖北武汉430073
2. 武汉工程大学化工与制药学院,湖北武汉,430073 |
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| 基金项目： | 国家自然科学基金，湖北省自然科学基金，教育部重点实验室开放基金 |
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| 摘 要： | 以自制的硅胶表面担载树状钒配合物SG2.0-VⅤO2-PAMAM-MSA]为催化剂,研究了离子液体耦合过氧化叔丁醇(TBHP)形成氧化-萃取体系一步脱除二苯并噻吩(DBT)的反应.研究结果表明,离子液体Omim]PF6与氧化剂TBHP耦合使用时,在催化剂的催化作用下,DBT脱除率明显提高,且油品中的氧化产物二苯并噻吩亚砜(DBTO)和二苯并噻吩砜(DBTO2)迅速减少.当TBHP与DBT的摩尔比为3∶1,离子液体Omim]PF6与模拟油的体积比为1∶3,温度90℃,反应时间60min时,DBT的脱除率可达95.0%.该氧化-萃取体系重复使用6次后,其性能没有明显降低.
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| 关 键 词： | 离子液体 脱硫 氧化-萃取 过氧化叔丁醇 树状聚酰胺 |
One-Step Desulfurization with Oxidation-Extraction Based on the Ionic Liquid |
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| LIU Xiwen,LI Junbo,,CAO Cancan,YU Xianglin,PAN Zhiquan.One-Step Desulfurization with Oxidation-Extraction Based on the Ionic Liquid[J].JOurnal of Wuhan University:Natural Science Edition,2012,58(4):291-296. |
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| Authors: | LIU Xiwen LI Junbo CAO Cancan YU Xianglin PAN Zhiquan |
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| Institution: | 1,2(1.Key Laboratory for Green Chemical Process of Ministry of Education, Wuhan Institute of Technology,Wuhan 430073,China; 2.School of Chemical Engineering and Pharmacy,Wuhan Institute of Technology,Wuhan 430073,China) |
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| Abstract: | The ionic liquid coupling "oxidation-extraction" method has been used to remove dibenzothiophen(DBT) in model oil,using silica gel-supported dendrimer-like vanadium complex as catalyst and tert-butyl hydroperoxide(TBHP) as oxidant.Studies showed that the conversion rate of DBT was improved apparently and the oxidation products(DBTO and DBTO2) in model oil were also decreased quickly when the desulfurization system contained oxidant and ionic liquid synchronously.Moreover,the DBT removal rate can reach 95.0% when the oxidation temperature is 90 ℃,time is 60 min,O/S is 3∶1,and the volume ratio of PF6 to model oil is 1∶3.The oxidation activity did not have apparent decrease even after the coupling system had been recycled for six times. |
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| Keywords: | ionic liquid desulfurization oxidation-extraction tert-butyl hydroperoxide dendrimer-like poly-amidoamine |
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