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Heterogeneous Catalysts SILP with Phosphotungstic Acid for Oxidative Desulfurization: Effect of Ionic Liquid

Authors
  • Bryzhin, A. A.1
  • Buryak, A. K.2
  • Gantman, M. G.3
  • Zelikman, V. M.1
  • Shilina, M. I.1
  • Tarkhanova, I. G.1
  • 1 Department of Chemistry, Moscow State University, Moscow, 119991, Russia , Moscow (Russia)
  • 2 Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, Moscow, 119071, Russia , Moscow (Russia)
  • 3 Helmholtz Institut Erlangen-Nürnberg for Renewable Energy, Erlangen, 91058, Germany , Erlangen (Germany)
Type
Published Article
Journal
Kinetics and Catalysis
Publisher
Pleiades Publishing
Publication Date
Sep 01, 2020
Volume
61
Issue
5
Pages
775–785
Identifiers
DOI: 10.1134/S0023158420050018
Source
Springer Nature
Keywords
License
Yellow

Abstract

AbstractSILP (supporting ionic liquid phase) catalysts for peroxide thiophene oxidation were obtained on silica gel, they included imidazole cations with sulfonic acid group and phosphotungstate anions. The composition of the active phase and the surface structure of the catalysts are characterized by a set of modern physicochemical methods, including mass spectrometry using the SALDI technique. It was found that the organic cation structure affects the stability of heteropolyanions, decomposition processes in the SILP and the catalytic properties of the samples. SILP catalysts are effective in desulfurization of the diesel fraction and provide fuel with an S content of less than 10 ppm.

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