Effect of Diethylene Glycol on the Formation of the Oxide Precursor of the Nickel–Molybdenum Hydrotreating Catalyst Full article
Journal |
Russian Journal of Applied Chemistry
ISSN: 1070-4272 , E-ISSN: 1608-3296 |
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Output data | Year: 2022, Volume: 95, Number: 7, Pages: 929-933 Pages count : 5 DOI: 10.1134/s1070427222070023 | ||||||
Tags | NiMoP/Al2O3 catalyst; oxide precursor; diethylene glycol; hydrodesulfurization; differential dissolution; Raman spectroscopy | ||||||
Authors |
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Affiliations |
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Funding (1)
1 | Russian Science Foundation | 22-13-00371 |
Abstract:
The effect of diethylene glycol addition on the formation of oxide precursors of nickel–molybdenum sulfide hydrotreating catalysts was studied by Raman spectroscopy and differential dissolution. The NiMoP/Al2O3 catalyst was prepared by impregnation of γ-alumina with an aqueous solution obtained by successive dissolution of H3PO4, MoO3, and Ni(OH)2 in water. To prepare the NiMoP-diethylene glycol/Al2O3 catalyst, diethylene glycol was added to the impregnation solution. On contact of the impregnation solution with γ-alumina, the HxP2Mo5O23(6−x)− heteropolyanions initially present in the solution decompose to form polymolybdates. Without organic additive, the heptamolybdate anion (Mo7O246−) is formed, whereas the use of diethylene glycol leads to the formation of polymolybdates of different structures, mainly with high degree of polymerization. In contrast to Mo7O246−, such polymolybdates are probably incapable of interacting with the support surface to generate aluminum molybdates that do not form the most active “NiMoS” phase.
Cite:
Nuzhdin A.L.
, Vlasova E.N.
, Dovlitova L.S.
, Volodin V.A.
, Bukhtiyarova G.A.
Effect of Diethylene Glycol on the Formation of the Oxide Precursor of the Nickel–Molybdenum Hydrotreating Catalyst
Russian Journal of Applied Chemistry. 2022. V.95. N7. P.929-933. DOI: 10.1134/s1070427222070023 WOS Scopus РИНЦ
Effect of Diethylene Glycol on the Formation of the Oxide Precursor of the Nickel–Molybdenum Hydrotreating Catalyst
Russian Journal of Applied Chemistry. 2022. V.95. N7. P.929-933. DOI: 10.1134/s1070427222070023 WOS Scopus РИНЦ
Original:
Нуждин А.Л.
, Власова Е.Н.
, Довлитова Л.С.
, Володин В.А.
, Бухтиярова Г.А.
Влияние диэтиленгликоля на формирование оксидного прекурсора никель-молибденового катализатора гидроочистки
Журнал прикладной химии. 2022. Т.95. №7. С.845-850. DOI: 10.31857/S0044461822070027 РИНЦ
Влияние диэтиленгликоля на формирование оксидного прекурсора никель-молибденового катализатора гидроочистки
Журнал прикладной химии. 2022. Т.95. №7. С.845-850. DOI: 10.31857/S0044461822070027 РИНЦ
Dates:
Submitted: | Jul 1, 2022 |
Published print: | Jul 1, 2022 |
Accepted: | Sep 23, 2022 |
Published online: | Jan 12, 2023 |
Identifiers:
Web of science | WOS:000913155400002 |
Scopus | 2-s2.0-85146303523 |
Elibrary | 50305692 |
Chemical Abstracts | 2023:109643 |
OpenAlex | W4320070470 |
Citing:
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