New Bimetallic Hydrotreating Catalyst MoWS<sub>2</sub> Based on Heteropoly Acid SiMo<sub>3</sub>W<sub>9</sub> and Mesostructured Silicate COK-12: Fid-Bau Portal

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

Koklyukhin, A. S. / Nikul’shina, M. S. / Mozhaev, A. V. / Blanchard, P. / Lancelot, C. / Lamonier, C. / Nikul’shin, P. A.

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

Koklyukhin, A. S. / Nikul’shina, M. S. / Mozhaev, A. V. / Blanchard, P. / Lancelot, C. / Lamonier, C. / Nikul’shin, P. A.

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.

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

Koklyukhin, A. S. / Nikul’shina, M. S. / Mozhaev, A. V. / Blanchard, P. / Lancelot, C. / Lamonier, C. / Nikul’shin, P. A.

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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Titel:

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

Weitere Titelangaben:

Pet. Chem.

Beteiligte:

Koklyukhin, A. S. (Autor:in) / Nikul’shina, M. S. (Autor:in) / Mozhaev, A. V. (Autor:in) / Blanchard, P. (Autor:in) / Lancelot, C. (Autor:in) / Lamonier, C. (Autor:in) / Nikul’shin, P. A. (Autor:in)

Erschienen in:

Petroleum Chemistry ; 60 ; 616-621

Erscheinungsdatum:

01.05.2020

Format / Umfang:

6 pages

ISSN:

1555-6239 , 0965-5441

DOI:

https://doi.org/10.1134/S0965544120050047

Medientyp:

Aufsatz (Zeitschrift)

Format:

Elektronische Ressource

Sprache:

Englisch

Schlagwörter:

mesostructured silicate COK-12 , heteropoly acid , MoWS<sub>2</sub> active phase , 4,6-dimethyldithiobenzothiophene Chemistry , Industrial Chemistry/Chemical Engineering , Chemistry and Materials Science

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