Effect of the Nature of the Additives of Metal Cations (Sr, Ba, and La) on the Properties of Co–Mo Hydrodesulfurization Catalysts Full article
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Kinetics and Catalysis
ISSN: 0023-1584 , E-ISSN: 1608-3210 |
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| Output data | Year: 2011, Volume: 52, Number: 4, Pages: 579-594 Pages count : 16 DOI: 10.1134/S0023158411030128 | ||
| Tags | High Resolution Transmission Electron Microscopy; Hydrodesulfurization; High Resolution Transmission Electron ; Microscopy Image; Hydrofining | ||
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Abstract:
The effect of the nature of the support modified with the ions of alkaline earth and rare earth elements (Sr, Ba, and La) on the properties of Co-Mo catalysts for the hydrodesulfurization of dibenzothiophene (DBT), 4-methyldibenzothiophene (4-MDBT), and 4,6-dimethyldibenzothiophene (4,6-DMDBT) was studied using a set of physicochemical and catalytic techniques. It was found that the introduction of modifying additives decreased the surface concentration of Lewis acid sites (LASs) and increased the concentration of basic sites (BSs) in aluminum-containing supports; these changes were more significant upon modification with lanthanum and strontium. The modification affected the distribution and degree of dispersion of Co-Mo-S sulfide packets. It was found that the rate constants of DBT and 4-MDBT conversion increased with decreasing total surface concentration of both LASs and BSs on the support. The highest rate constant of 4,6-DMDBT conversion was reached at an optimum concentration of weak Lewis sites on Co-Mo catalysts, whose support was modified with strontium or barium.
Cite:
Korneeva E.V.
, Ivanova A.S.
, Bukhtiyarova G.A.
, Aleksandrov P.V.
, Zaikovskii V.I.
, Prosvirin I.P.
, Noskov A.S.
Effect of the Nature of the Additives of Metal Cations (Sr, Ba, and La) on the Properties of Co–Mo Hydrodesulfurization Catalysts
Kinetics and Catalysis. 2011. V.52. N4. P.579-594. DOI: 10.1134/S0023158411030128 WOS Scopus РИНЦ ANCAN OpenAlex
Effect of the Nature of the Additives of Metal Cations (Sr, Ba, and La) on the Properties of Co–Mo Hydrodesulfurization Catalysts
Kinetics and Catalysis. 2011. V.52. N4. P.579-594. DOI: 10.1134/S0023158411030128 WOS Scopus РИНЦ ANCAN OpenAlex
Original:
Корнеева Е.В.
, Иванова А.С.
, Бухтиярова Г.А.
, Александров П.В.
, Зайковский В.И.
, Просвирин И.П.
, Носков А.С.
Влияние природы добавки катионов металлов (Sr, Ba, La) на свойства Co-Mo-катализаторов гидрообессеривания
Кинетика и катализ. 2011. Т.52. №4. С.589-604. РИНЦ
Влияние природы добавки катионов металлов (Sr, Ba, La) на свойства Co-Mo-катализаторов гидрообессеривания
Кинетика и катализ. 2011. Т.52. №4. С.589-604. РИНЦ
Dates:
| Submitted: | Jul 5, 2010 |
| Published print: | Jul 1, 2011 |
| Published online: | Aug 7, 2011 |
Identifiers:
| Web of science: | WOS:000293639300018 |
| Scopus: | 2-s2.0-80051628305 |
| Elibrary: | 18058822 |
| Chemical Abstracts: | 2011:985797 |
| Chemical Abstracts (print): | 155:566583 |
| OpenAlex: | W1966687482 |