Citation: Alessia Coletti, Federica Sabuzi, Barbara Floris, Pierluca Galloni, Valeria Conte. Efficient and sustainable V-catalyzed oxidative desulfurization of fuels assisted by ionic liquids[J]. Journal of Fuel Chemistry and Technology, ;2018, 46(9): 1121-1129. shu

Efficient and sustainable V-catalyzed oxidative desulfurization of fuels assisted by ionic liquids

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Department of Chemical Science and Technologies, University of Rome Tor Vergata, via della Ricerca Scientifica snc, Rome 00133, Italy
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BT-InnoVaChem srl, Academic Spin-Off, c/o University of Rome Tor Vergata, via della Ricerca Scientifica snc, Rome 00133, Italy

Corresponding author: Pierluca Galloni, p.galloni@bt-innovachem.com Valeria Conte, valeria.conte@uniroma2.it
Received Date: 14 June 2018
Revised Date: 6 August 2018

Fund Project: The project was supported by the University of Rome "Tor Vergata", SUSCARE project. Alessia Coletti and Federica Sabuzi contributed equally to the manuscript

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Fuel desulfurization is an appealing topic for the chemical industry since severe environmental regulations regarding SO₂ emissions have been legislated in many countries. In order to reduce the amount of sulfur-containing compounds in fuels, responsible for high SO_x emission levels, a green chemistry approach is compulsory. In this paper, vanadium salen and salophen complexes were used in the oxidation of a model aromatic sulfide, such as dibenzothiophene (DBT), in the presence of H₂O₂ as green oxidant. The oxidative process was successfully coupled with the extraction of the oxidized compounds by ionic liquids. The system resulted highly selective for sulfide oxidation, showing poor reactivity toward the oxidation of alkenes and allowing a significant reduction of S content in a model benzine. To note, the use of microwave in place of standard heating allowed to obtain 98% of DBT oxidation and almost complete sulfur extraction in the model fuel in 1000 s. For these reasons, this system was considered an easy, rapid and clean process to achieve fuel desulfurization.
- fuel desulfurization,
- V-catalysis,
- sustainability,
- ionic liquids,
- microwaves
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