Issue 11, 2007
From the journal:

Green Chemistry

Oxidative desulfurization of diesel fuel using a Brønsted acid room temperature ionic liquid in the presence of H2O2

Dishun Zhao,*ab   Jianlong Wanga  and  Erpeng Zhoua  

* Corresponding authors

a School of Chemical Engineering, Tianjin University, Tianjin, China

b School of Chemical and Pharmaceutical Engineering, Hebei University of Science and Technology, Shijiazhuang, China
E-mail: dishunzhao@yahoo.com.cn
Fax: +86 311-88632009
Tel: +86 311-88632009

Abstract

The Brønsted acid ionic liquid N-methyl-pyrrolidoniumtetrafluoroborate ([Hnmp]BF4) was utilized as the extractant and catalyst for extraction/oxidative desulfurization (ODS) of model oil and diesel fuel in the presence of H2O2 by a combination of both chemical oxidation and solvent extraction. A coordination compound was generated between hydrogen peroxide and the cation of the ionic liquid, and the hydrogen peroxide on the coordination compound decomposed to produce hydroxyl radicals. The sulfur-containing compounds in model oil or diesel fuel were extracted into the ionic liquid phase and oxidized to their corresponding sulfones by the hydroxyl radicals. The room temperature ionic liquid [Hnmp]BF4 can be recycled 7 times without a significant decrease in desulfurization.

Graphical abstract: Oxidative desulfurization of diesel fuel using a Brønsted acid room temperature ionic liquid in the presence of H2O2

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Article information

DOI
https://doi.org/10.1039/B706574D
Article type
Paper
Submitted
01 May 2007
Accepted
20 Jul 2007
First published
03 Aug 2007

Green Chem., 2007,9, 1219-1222

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Oxidative desulfurization of diesel fuel using a Brønsted acid room temperature ionic liquid in the presence of H2O2

D. Zhao, J. Wang and E. Zhou, Green Chem., 2007, 9, 1219 DOI: 10.1039/B706574D

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