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Novel Molybdenite-Based Nanopowder Catalysts for Hydrodesulfurization
https://orcid.org/http://orcid.org/0000-0003-2441-8148
https://orcid.org/http://orcid.org/0000-0003-3906-8101
https://orcid.org/http://orcid.org/0000-0003-4028-4354
https://orcid.org/http://orcid.org/0000-0002-7569-0902
https://orcid.org/http://orcid.org/0000-0002-0351-5128
https://orcid.org/http://orcid.org/0000-0002-3137-3796
https://orcid.org/http://orcid.org/0000-0003-1660-5568
https://orcid.org/http://orcid.org/0000-0002-3999-1855
Novel bulk single-component sulfide catalysts were prepared under the conditions of solid-phase dispersion of МoS2 molybdenite at various mechanical treatment times and various amounts of polar and nonpolar liquid microadditives. The chemical degradation of the samples in the air was found to lead to the formation of surface sulfate anions that shield catalytically active Mo sites. Indirect correlations of the hydrodesulfurization ability of MoS2 powders with the concentration of sulfate anions on their surface, and with the aqueous pH in the powder suspensions, including the dielectric permittivity of the organic dopants, can serve as reference indicators of high catalytic activity in the model reaction of dibenzothiophene hydrogenolysis. The study identified the most active sample able to run for an extended time during multiple cycles without losing its catalytic properties. Also, the paper discusses the dibenzothiophene conversion routes, the product composition, the probable structure of active sites in the catalysts, and the desulfurization degree of diesel fuel components.
Novel Molybdenite-Based Nanopowder Catalysts for Hydrodesulfurization
https://orcid.org/http://orcid.org/0000-0003-2441-8148
https://orcid.org/http://orcid.org/0000-0003-3906-8101
https://orcid.org/http://orcid.org/0000-0003-4028-4354
https://orcid.org/http://orcid.org/0000-0002-7569-0902
https://orcid.org/http://orcid.org/0000-0002-0351-5128
https://orcid.org/http://orcid.org/0000-0002-3137-3796
https://orcid.org/http://orcid.org/0000-0003-1660-5568
https://orcid.org/http://orcid.org/0000-0002-3999-1855
Novel bulk single-component sulfide catalysts were prepared under the conditions of solid-phase dispersion of МoS2 molybdenite at various mechanical treatment times and various amounts of polar and nonpolar liquid microadditives. The chemical degradation of the samples in the air was found to lead to the formation of surface sulfate anions that shield catalytically active Mo sites. Indirect correlations of the hydrodesulfurization ability of MoS2 powders with the concentration of sulfate anions on their surface, and with the aqueous pH in the powder suspensions, including the dielectric permittivity of the organic dopants, can serve as reference indicators of high catalytic activity in the model reaction of dibenzothiophene hydrogenolysis. The study identified the most active sample able to run for an extended time during multiple cycles without losing its catalytic properties. Also, the paper discusses the dibenzothiophene conversion routes, the product composition, the probable structure of active sites in the catalysts, and the desulfurization degree of diesel fuel components.
Novel Molybdenite-Based Nanopowder Catalysts for Hydrodesulfurization
https://orcid.org/http://orcid.org/0000-0003-2441-8148
https://orcid.org/http://orcid.org/0000-0003-3906-8101
https://orcid.org/http://orcid.org/0000-0003-4028-4354
https://orcid.org/http://orcid.org/0000-0002-7569-0902
https://orcid.org/http://orcid.org/0000-0002-0351-5128
https://orcid.org/http://orcid.org/0000-0002-3137-3796
https://orcid.org/http://orcid.org/0000-0003-1660-5568
https://orcid.org/http://orcid.org/0000-0002-3999-1855
Novel bulk single-component sulfide catalysts were prepared under the conditions of solid-phase dispersion of МoS2 molybdenite at various mechanical treatment times and various amounts of polar and nonpolar liquid microadditives. The chemical degradation of the samples in the air was found to lead to the formation of surface sulfate anions that shield catalytically active Mo sites. Indirect correlations of the hydrodesulfurization ability of MoS2 powders with the concentration of sulfate anions on their surface, and with the aqueous pH in the powder suspensions, including the dielectric permittivity of the organic dopants, can serve as reference indicators of high catalytic activity in the model reaction of dibenzothiophene hydrogenolysis. The study identified the most active sample able to run for an extended time during multiple cycles without losing its catalytic properties. Also, the paper discusses the dibenzothiophene conversion routes, the product composition, the probable structure of active sites in the catalysts, and the desulfurization degree of diesel fuel components.
Novel Molybdenite-Based Nanopowder Catalysts for Hydrodesulfurization
Pet. Chem.
Fedushchak, T. A. (Autor:in) / Uimin, M. A. (Autor:in) / Maikov, V. V. (Autor:in) / Akimov, A. S. (Autor:in) / Zhuravkov, S. P. (Autor:in) / Vosmerikov, A. V. (Autor:in) / Prosvirin, I. P. (Autor:in) / Velichkina, L. M. (Autor:in) / Stepanov, A. A. (Autor:in) / Kogan, V. M. (Autor:in)
Petroleum Chemistry ; 61 ; 794-805
01.07.2021
12 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Erratum to: Novel Molybdenite-Based Nanopowder Catalysts for Hydrodesulfurization
| Springer Verlag | 2021
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Molybdenite in the mount Perry district
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