Next Article in Journal
Conditions Optimization and Physiochemical Analysis of Oil Obtained by Catalytic Pyrolysis of Scrap Tube Rubber Using MgO as Catalyst
Next Article in Special Issue
Application of Response Surface Methodology for Preparation of ZnAC2/CAC Adsorbents for Hydrogen Sulfide (H2S) Capture
Previous Article in Journal
Gold Nanoparticle-Decorated Bi2S3 Nanorods and Nanoflowers for Photocatalytic Wastewater Treatment
Previous Article in Special Issue
Valorization of Raw and Calcined Chicken Eggshell for Sulfur Dioxide and Hydrogen Sulfide Removal at Low Temperature
 
 
Article

Polyoxometalate Dicationic Ionic Liquids as Catalyst for Extractive Coupled Catalytic Oxidative Desulfurization

School of Materials and Chemical Engineering, Hubei University of Technology, Wuhan 430068, China
*
Author to whom correspondence should be addressed.
Academic Editor: Oxana Kholdeeva
Catalysts 2021, 11(3), 356; https://doi.org/10.3390/catal11030356
Received: 1 February 2021 / Revised: 4 March 2021 / Accepted: 6 March 2021 / Published: 9 March 2021
(This article belongs to the Special Issue Catalysts and Processes for H2S Conversion to Sulfur)
Wettability is an important factor affecting the performance of catalytic oxidative desulfurization. In order to develop an efficient catalyst for the extractive coupled catalytic oxidative desulfurization (ECODS) of fuel oil by H2O2 and acetonitrile, a novel family of imidazole-based polyoxometalate dicationic ionic liquids (POM-DILs) [Cn(MIM)2]PW12O40 (n = 2, 4, 6) was synthesized by modifying phosphotungstic acid (H3PW12O40) with double imidazole ionic liquid. These kinds of catalysts have good dispersity in oil phase and H2O2, which is conducive to the deep desulfurization of fuel oil. The catalytic performance of the catalysts was studied under different conditions by removing aromatic sulfur compound dibenzothiophene (DBT) from model oil. Results showed that [C2(MIM)2]PW12O40 had excellent desulfurization efficiency, and more than 98% of DBT was removed under optimum conditions. In addition, it also exhibited good recyclability, and activity with no significant decline after seven reaction cycles. Meanwhile, dibenzothiophene sulfone (DBTO2), the only oxidation product of DBT, was confirmed by Gas Chromatography-Mass Spectrometry (GC-MS), and a possible mechanism of the ECODS process was proposed. View Full-Text
Keywords: polyoxometalate; dicationic ionic liquids; extraction; oxidative desulfurization; dibenzothiophene polyoxometalate; dicationic ionic liquids; extraction; oxidative desulfurization; dibenzothiophene
Show Figures

Graphical abstract

MDPI and ACS Style

Li, J.; Guo, Y.; Tan, J.; Hu, B. Polyoxometalate Dicationic Ionic Liquids as Catalyst for Extractive Coupled Catalytic Oxidative Desulfurization. Catalysts 2021, 11, 356. https://doi.org/10.3390/catal11030356

AMA Style

Li J, Guo Y, Tan J, Hu B. Polyoxometalate Dicationic Ionic Liquids as Catalyst for Extractive Coupled Catalytic Oxidative Desulfurization. Catalysts. 2021; 11(3):356. https://doi.org/10.3390/catal11030356

Chicago/Turabian Style

Li, Jingwen, Yanwen Guo, Junjun Tan, and Bing Hu. 2021. "Polyoxometalate Dicationic Ionic Liquids as Catalyst for Extractive Coupled Catalytic Oxidative Desulfurization" Catalysts 11, no. 3: 356. https://doi.org/10.3390/catal11030356

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop