New Molybdenum-Containing Mesoporous Catalysts for Fast Oxidation of Sulfur-Containing Substrates

O. O. Gul; Гуль О. О.; P. D. Polikarpova; Поликарпова П. Д.; A. V. Akopyan; Акопян А. В.; A. V. Anisimov; Анисимов А. В.

doi:10.31857/S0453881123010021

New Molybdenum-Containing Mesoporous Catalysts for Fast Oxidation of Sulfur-Containing Substrates

Autores: Gul O.¹, Polikarpova P.¹, Akopyan A.¹, Anisimov A.¹
Afiliações:
1. Lomonosov Moscow State University, Department of Petroleum Chemistry and Organic Catalysis, Faculty of Chemistry
Edição: Volume 64, Nº 1 (2023)
Páginas: 22-30
Seção: ARTICLES
URL: https://journals.rcsi.science/0453-8811/article/view/137003
DOI: https://doi.org/10.31857/S0453881123010021
EDN: https://elibrary.ru/KGESVN
ID: 137003

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Resumo

The possibility of using molybdenum-containing catalysts based on SBA-15 synthesized in one stage by the co-condensation method were used in the process of oxidation of various organosulfur compounds for the first time. The composition and structure of the obtained materials are reliably confirmed by a set of modern physicochemical methods: low-temperature nitrogen adsorption/desorption, XRD, TEM, IR spectroscopy. The effect of the amount of the active phase and influence of the conditions of the process on the oxidation of a model mixture of dibenzothiophene was investigated. It was shown that obtained catalyst continues to retain its activity at least during 4 cycles without significant loss of activity. The synthesized catalyst containing 5 wt % of molybdenum makes it possible to achieve 100% conversion of dibenzothiophene in 5 minutes under the following conditions: 0.5 wt % 5%Mo-SBA-15, H₂O₂ : S = 6 : 1 (mol.), T = 80°C.

Palavras-chave

Oxidative desulfurization, DBT, oxidation of sulfur compounds, co-condensation method, SBA-15

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