Preparation of EMIES/nC9H10O2-based deep eutectic solvents and its oxidative desulfurization activity

被引：0
|
作者：
Wang X. [1 ]
Zhang Y. [1 ]
Li X. [1 ]
Zhao R. [1 ]
机构：
[1] College of Chemistry, Chemical Engineering and Environmental Engineering, Liaoning Shihua University, Fushun, 113001, Liaoning
来源：
Huagong Xuebao/CIESC Journal | 2019年 / 70卷 / 04期
关键词：
Catalysis; Deep eutectic solvents; Recovery; Solvent extraction;
D O I：
10.11949/j.issn.0438-1157.20181251
中图分类号：
学科分类号：
摘要：
A series of acidic deep eutectic solvents (DESs) EMIES/nC9H10O2(n=0.25, 0.5, 1, 2, 4) were synthesized by simply heating the mixture of 1-ethyl-3-methylimidazolium ethylsulfate (EMIES) and 3-phenylpropionic acid (C9H10O2). The structure of EMIES/nC9H10O2 was determined by FTIR, 1H NMR and TGA characterization. The extraction-oxidation desulfurization system was developed to remove sulfides from model oil using EMIES/nC9H10O2 as the extractant and catalyst, H2O2 as the oxidation. The influences of raw material ratio, reaction temperature, O/S ratio, amount of DESs and different sulfide on the desulfurization performance were investigated. The experimental results demonstrated the optimal reaction conditions were molar ratio of EMIES to C9H10O2 of 1:1, temperature of 50℃, O/S ratio of 8, the amount of DESs of 1.5 g and 5 ml model oil. Removal rate of DBT, 4, 6-DMDBT and BT reached 94.8%, 91.6% and 46.4%, respectively, under the optimal condition. The DESs can be reused for 6 times without significant decrease in activity. In addition, the desulfurization mechanism of the oxidation-extraction desulfurization system was discussed. © All Right Reserved.
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页码：1567 / 1574
页数：7
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