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 SOx 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.

Coletti, A., Sabuzi, F., Floris, B., Galloni, P., Conte, V. (2018). Efficient and sustainable V-catalyzed oxidative desulfurization of fuels assisted by ionic liquids. JOURNAL OF FUEL CHEMISTRY & TECHNOLOGY, 46(9), 1121-1129 [10.1016/S1872-5813(18)30045-8].

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

F Sabuzi;B Floris;P Galloni
;
V Conte
2018

Abstract

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 SOx 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.
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore CHIM/06 - Chimica Organica
English
https://www.sciencedirect.com/science/article/pii/S1872581318300458
Coletti, A., Sabuzi, F., Floris, B., Galloni, P., Conte, V. (2018). Efficient and sustainable V-catalyzed oxidative desulfurization of fuels assisted by ionic liquids. JOURNAL OF FUEL CHEMISTRY & TECHNOLOGY, 46(9), 1121-1129 [10.1016/S1872-5813(18)30045-8].
Coletti, A; Sabuzi, F; Floris, B; Galloni, P; Conte, V
Articolo su rivista
File in questo prodotto:
File Dimensione Formato  
j fuel chem technol 2018 p1121.pdf

accesso solo dalla rete interna

Licenza: Copyright dell'editore
Dimensione 786.51 kB
Formato Adobe PDF
786.51 kB Adobe PDF   Visualizza/Apri   Richiedi una copia

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/205996
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 11
  • ???jsp.display-item.citation.isi??? ND
social impact