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New Bimetallic Hydrotreating Catalyst MoWS2 Based on Heteropoly Acid SiMo3W9 and Mesostructured Silicate COK-12

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Abstract

Bimetallic catalysts MoW/СОK-12 are synthesized on the basis of mesostructured silicate COK‑12 prepared from sodium silicate aqueous solution using the Keggin structure hetero polyacid H4Si-Mo3W9O40 as an oxide precursor of the sulfide active phase and with the use of the mechanical mixture of two monometallic hetero polyacids (H4SiMo12O40 and H4SiW12O40) at a molar ratio of Mo/W = 3/9. Alumina-based analogs with the same surface metal content are used as reference samples. The test samples are analyzed by low-temperature nitrogen adsorption and high-resolution transmission electron microscopy. The catalytic activity is studied in the combined hydrotreatment of dibenzothiophene and naphthalene and in the hydrodesulfurization of 4,6-dimethyldibenzothiophene in a flow unit. It is shown that the use of mesostructured silicate COK-12 as a support leads to an increase in catalytic activity in target hydrotreating reactions.

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  1. U.S. Energy Information Administration. #IEO2019. International Energy Outlook 2019 with projections to 2050. 2019. P.118. https://www.eia.gov/outlooks/ieo/pdf/ieo2019.pdf.

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Funding

This work was supported by the Ministry of Education and Science of the Russian Federation (project no. 14.586.21.0054, unique project identifier RFM-EFI58617X0054) and the Ministry of Foreign Affairs and International Development (France) and the Ministry of National Education, Higher Education, and Science (France) within the framework of the Partenariats Hubert Curien (PHC) program Kolmogorov for 2017–2019.

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Correspondence to P. A. Nikul’shin.

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CONFLICT OF INTEREST

The authors declare that there is no conflict of interest to be disclosed in this paper.

ADDITIONAL INFORMATION

A.S. Koklukhin, ORCID: https://orcid.org/0000-0002-4737-120X

M.S. Nikul’shina, ORCID: https://orcid.org/0000-0001-7081-7049

A.V. Mozhaev, ORCID: https://orcid.org/0000-0003-3781-6073

P. Blanchard, ORCID: https://orcid.org/0000-0003-0055-396X

C. Lancelot, ORCID: https://orcid.org/0000-0002-0691-0721

C. Lamonier, ORCID: https://orcid.org/0000-0002-5100-8139

P.A. Nikul’shin, ORCID: https://orcid.org/0000-0002-3243-7835

Additional information

Translated by T. Soboleva

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Koklyukhin, A.S., Nikul’shina, M.S., Mozhaev, A.V. et al. New Bimetallic Hydrotreating Catalyst MoWS2 Based on Heteropoly Acid SiMo3W9 and Mesostructured Silicate COK-12. Pet. Chem. 60, 616–621 (2020). https://doi.org/10.1134/S0965544120050047

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