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Article

Oxidative Desulfurization of Fuel Oil by Pyridinium-Based Ionic Liquids

by
Dishun Zhao
1,2,*,
Yanan Wang
1 and
Erhong Duan
3
1
School of Chemical Engineering, Tianjin University, Tianjin, 300072, China
2
School of Chemistry and Pharmaceutical Engineering, Hebei University of Science and Technology, Shi jiazhuang 050018, China
3
School of Environmental Science and Engineering, Hebei University of Science and Technology, Shijiazhuang 050018, China
*
Author to whom correspondence should be addressed.
Molecules 2009, 14(11), 4351-4357; https://doi.org/10.3390/molecules14114351
Submission received: 9 September 2009 / Revised: 8 October 2009 / Accepted: 19 October 2009 / Published: 28 October 2009
(This article belongs to the Collection Ionic Liquids)
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Abstract

In this work, an N-butyl-pyridinium-based ionic liquid [BPy]BF4 was prepared. The effect of extraction desulfurization on model oil with thiophene and dibenzothiophene (DBT) was investigated. Ionic liquids and hydrogen peroxide (30%) were tested in extraction-oxidation desulfurization of model oil. The results show that the ionic liquid [BPy]BF4 has a better desulfurization effect. The best technological conditions are: V(IL)/V(Oil) /V(H2O2) = 1:1:0.4, temperature 55 °C, the time 30 min. The ratio of desulfurization to thiophene and DBT reached 78.5% and 84.3% respectively, which is much higher than extraction desulfurization with simple ionic liquids. Under these conditions, the effect of desulfurization on gasoline was also investigated. The used ionic liquids can be recycled up to four times after regeneration.
Keywords: ionic liquids; extraction-oxidation; desulfurization; pyridinium-based ionic liquids; extraction-oxidation; desulfurization; pyridinium-based

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MDPI and ACS Style

Zhao, D.; Wang, Y.; Duan, E. Oxidative Desulfurization of Fuel Oil by Pyridinium-Based Ionic Liquids. Molecules 2009, 14, 4351-4357. https://doi.org/10.3390/molecules14114351

AMA Style

Zhao D, Wang Y, Duan E. Oxidative Desulfurization of Fuel Oil by Pyridinium-Based Ionic Liquids. Molecules. 2009; 14(11):4351-4357. https://doi.org/10.3390/molecules14114351

Chicago/Turabian Style

Zhao, Dishun, Yanan Wang, and Erhong Duan. 2009. "Oxidative Desulfurization of Fuel Oil by Pyridinium-Based Ionic Liquids" Molecules 14, no. 11: 4351-4357. https://doi.org/10.3390/molecules14114351

APA Style

Zhao, D., Wang, Y., & Duan, E. (2009). Oxidative Desulfurization of Fuel Oil by Pyridinium-Based Ionic Liquids. Molecules, 14(11), 4351-4357. https://doi.org/10.3390/molecules14114351

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