高等学校化学学报2016，Vol.37Issue(12)：2184-2190,7.DOI:10.7503/cjcu20160539
有机-无机杂多酸类离子液体催化汽油超声氧化脱硫
Oxidative Desulfurization of Gasoline Catalyzed by Organic-inorganic Heteropoly Acid Ionic Liquids Under Ultrasound†
摘要
Abstract
A series of Organic⁃inorganic heteropoly acid ionic liquids was synthesized and used for catalyzing oxidative desulfurization of simulated gasoline under ultrasound. With the help of ultrasonic wave, the reaction time was largely reduced, and the desulfurization efficiency was also raised. The results showed that Zr0�25[BMIM]HPW12O40 exhibits the best catalytic activity. The effects of ultrasonic power, ultrasonic/clearance time, the amount of catalyst, reaction temperature, reaction time, and the amount of H2 O2 on the desulfurization rate were fully investigated. The selected optimal conditions were as follows: n(Cat.)=0�008 mmol, V( H2 O2 )=40μL, V( simulated oil)=10 mL, V( acetonitrile)=1 mL, reaction temperature 25℃, reaction time 10 min, the ultrasonic power 300 W, the ultrasonic time 2 s, and the ultrasonic off⁃time 1. 5 s. Under the optimal conditions, the sulfur removal of DBT could reach 97. 8%. The solid catalyst Zr0�25[BMIM]HPW12O40 could be directly separated out after the reaction, and could be reused after the vacuum drying. The results showed that Zr0�25 [ BMIM ] HPW12 O40 also exhibited good recyclability. After 5 recycles, the desulfurization rate still could reach 81.9%. By using Zr0�25[BMIM]HPW12O40 as catalyst, the reaction activity decreased in the order of DBT>4, 6⁃DMDBT>ethyl thioether>phenyl thioether>n⁃butyl mercaptan>methyl phenyl thioether>BT>thiophene.关键词
杂多酸离子液体/氧化脱硫/萃取脱硫/超声/二苯并噻吩Key words
Heteropoly acid ionic liquid/Oxidative desulfurization/Extractive desulfurization/Ultrasound/Dibenzothiophene分类
化学化工引用本文复制引用
于凤丽,谢盼辉,朱国强,袁冰,解从霞,于世涛..有机-无机杂多酸类离子液体催化汽油超声氧化脱硫[J].高等学校化学学报,2016,37(12):2184-2190,7.基金项目
国家自然科学基金（批准号21476120）、山东省重点发展计划项目（批准号2015GGX107008）和山东省泰山学者工程专项经费（批准号ts201511033）资助．? Supported by the National Natural Science Foundation of China（No．21476120）， the Emphasis Development Plan of Shandong Province， China（No．2015GGX107008） and the Engineering Special Funding of Shandong Taishan Scholar， China（No．ts201511033）． （）
