Oxidative Desulfurization of Dibenzothiophene Catalyzed by VO(acac)2 in Ionic Liquids at Room Temperature
Oxidative Desulfurization of Dibenzothiophene Catalyzed by VO(acac)2 in Ionic Liquids at Room Temperature
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DOI：
10.1080/10916466.2010.545790
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发表时间：
2013-06
影响因子：
1.5
通讯作者：
W. Zhu;D. Xu;H. Li;Y. Ding;M. Zhang;H. Liu;Y. Chao
中科院分区：
文献类型：
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作者：
W. Zhu;D. Xu;H. Li;Y. Ding;M. Zhang;H. Liu;Y. Chao
采用VO(acac)2、30% H2O2和1-丁基-3-甲基咪唑四氟硼酸盐（[Bmim]BF4）组成的简单萃取-催化氧化脱硫（ECODS）体系，在室温下深度脱除模拟油中的二苯并噻吩（DBT）。最佳条件为：[n(H2O2)/n(DBT)/n（催化剂）= 100:20:1]，模型油= 5 mL，离子液体[IL] = 1 mL，温度为30℃，时间为2 hr。采用ECODS系统，DBT的硫去除率可达99.6%，优于单纯萃取法（15.6%）和无催化剂氧化法（17.1%）。IL可循环使用5次而活性无明显下降。
A simple extraction and catalytic oxidative desulfurization (ECODS) system composed of VO(acac)2, 30% H2O2, and 1-butyl-3-methylimidazolium tetrafluoroborate ([Bmim]BF4) has been found to be suitable for the deep removal of dibenzothiophene (DBT) in model oil at room temperature. The optimal conditions were as follows: [n(H2O2)/n(DBT)/n(catalyst) = 100:20:1], model oil = 5 mL, ionic liquid [IL] = 1 mL, T = 30°C, t = 2 hr. With the ECODS system, the sulfur removal of DBT could reach 99.6%, which was superior to that of the simple extraction with IL (15.6%) or oxidation without catalyst (17.1%). The IL could be recycled five times without a significant decrease in activity.