Abstract: The present study investigates the effects of heat treatment temperature on the physicochemical properties of bulk granular Ni–Mo–W catalysts. A series of bulk catalysts were synthesized and characterized by X-ray diffraction analysis, low-temperature nitrogen adsorption/desorption, CHNS elemental analysis, Raman spectroscopy, and X-ray photoelectron spectroscopy. To evaluate the catalytic activity in hydrodesulfurization and hydrodenitrogenation reactions, the catalyst samples were tested in hydrotreating of vacuum gasoil. It was found that the bulk granular catalysts calcined at 400°C and lower temperatures were mainly X-ray amorphous. In the samples calcined above 400°C, a nickel molybdate phase was predominant. In these samples, the content of an active sulfide phase after sulfidation was lower than that in the samples prepared from X-ray amorphous oxide precursors. The test data showed that the catalyst calcined at 300ºC exhibited the highest activity in the hydrodesulfurization of vacuum gasoil.

Cite: Mukhacheva P.P. , Vatutina Y.V. , Nadeina K.A. , Budukva S.V. , Pakharukova V.P. , Danilova I.G. , Panafidin M.A. , Klimov O.V. , Noskov A.S.
Effects of Heat Treatment Temperature on the Physicochemical Properties and Catalytic Performance of Bulk Ni–Mo–W Catalysts
Petroleum Chemistry. 2023. V.63. N11. P.1302–1310. DOI: 10.1134/S0965544124010043 WOS Scopus РИНЦ ANCAN OpenAlex

Dates:

Published print:	Dec 1, 2023
Submitted:	Feb 28, 2024
Accepted:	Mar 7, 2024
Published online:	Apr 1, 2024

Identifiers:

Web of science:	WOS:001195382600003
Scopus:	2-s2.0-85189183091
Elibrary:	65595858
Chemical Abstracts:	2024:721843
Chemical Abstracts (print):	186:269649
OpenAlex:	W4393381305

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