Preparation of EMIES/<italic style="font-style: italic">n</italic>C9H10O2-based deep eutectic solvents and its oxidative desulfurization activity

WANG Xinbo; ZHANG Yanping; LI Xiuping; ZHAO Rongxiang

doi:10.11949/j.issn.0438-1157.20181251

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

Energy and environmental engineering | 更新时间：2026-07-24

- Preparation of EMIES/nC₉H₁₀O₂-based deep eutectic solvents and its oxidative desulfurization activity
- CIESC Journal Vol. 70, Issue 4, Pages: 1567-1574(2019)
- 作者机构：
  
  辽宁石油化工大学化学化工与环境学部，辽宁抚顺 113001
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20181251
  CLC： TE 624
- Received：22 October 2018，
  
  Revised：2018-12-28，
  
  Online First：15 June 2020，
  
  Published：12 April 2019
- 稿件说明：
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王鑫博, 张延平, 李秀萍, 赵荣祥. EMIES/nC₉H₁₀O₂基低共熔溶剂的制备及其氧化脱硫活性的研究[J]. 化工学报, 2019, 70(4): 1567-1574 DOI: 10.11949/j.issn.0438-1157.20181251.

WANG Xinbo, ZHANG Yanping, LI Xiuping, ZHAO Rongxiang. Preparation of EMIES/nC₉H₁₀O₂-based deep eutectic solvents and its oxidative desulfurization activity[J]. CIESC Journal, 2019, 70(4): 1567-1574 DOI: 10.11949/j.issn.0438-1157.20181251.
王鑫博, 张延平, 李秀萍, 赵荣祥. EMIES/nC₉H₁₀O₂基低共熔溶剂的制备及其氧化脱硫活性的研究[J]. 化工学报, 2019, 70(4): 1567-1574 DOI: 10.11949/j.issn.0438-1157.20181251. DOI：

WANG Xinbo, ZHANG Yanping, LI Xiuping, ZHAO Rongxiang. Preparation of EMIES/nC₉H₁₀O₂-based deep eutectic solvents and its oxidative desulfurization activity[J]. CIESC Journal, 2019, 70(4): 1567-1574 DOI: 10.11949/j.issn.0438-1157.20181251. DOI：

摘要

通过简单加热1-乙基-3-甲基咪唑硫酸乙酯（EMIES）离子液体和3-苯丙酸（C

）的混合物，制备了一系列酸性低共熔溶剂EMIES/

（

=0.25

0.5

4）。通过FTIR，

H NMR和TGA的表征，确定EMIES/

的结构。以该低共熔溶剂为催化剂和萃取剂，H

为氧化剂，组成氧化-萃取脱硫体系，用于脱除模拟油中的硫化物。考察了原料配比、反应温度、氧硫比（O/S）、低共熔溶剂加入量和不同硫化物对脱硫性能的影响。结果表明，在EMIES和C

摩尔比为1∶1，反应温度为50℃，O/S比为8，低共熔溶剂加入量为1.5 g和模拟油5 ml的反应条件下，二苯并噻吩、4

6-二甲基二苯并噻吩和苯并噻吩的脱除率分别为94.8%、91.6%和46.4%。低共熔溶剂可循环使用6次，活性无明显下降。此外，对该氧化-萃取脱硫体系的脱硫机理进行了探讨。

Abstract

A series of acidic deep eutectic solvents (DESs) EMIES/

（

=0.25

0.5

4） were synthesized by simply heating t

he mixture of 1-ethyl-3-methylimidazolium ethylsulfate (EMIES) and 3-phenylpropionic acid (C

). The structure of EMIES/

was determined by FTIR

H NMR and TGA characterization. The extraction-oxidation desulfurization system was developed to remove sulfides from model oil using EMIES/

as the extractant and catalyst

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 C

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

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.

关键词

Keywords

references

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

DOI：10.11949/j.issn.0438-1157.20181251

摘要

Abstract

关键词

Keywords

references

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