Optimal Choice of the Preparation Procedure and Precursor Composition for a Bulk Ni–Mo–W Catalyst | Sciact - CRIS-system of Boreskov Institute of Catalysis

Optimal Choice of the Preparation Procedure and Precursor Composition for a Bulk Ni–Mo–W Catalyst Full article

Journal

Inorganics
, E-ISSN: 2304-6740

Output data

Year: 2023, Volume: 11, Number: 2, Article number : 89, Pages count : 23 DOI: 10.3390/inorganics11020089

Tags

unsupported catalysts; precursors; bulk catalysts; hydrotreating; hydrodesulfurization; hydrodenitrogenation

Authors

Nadeina Ksenia A. ¹ , Budukva Sergey V. ¹ , Vatutina Yuliya V. ¹ , Mukhacheva Polina P. ¹ , Gerasimov Evgeniy Yu. ¹ , Pakharukova Vera P. ¹ , Prosvirin Igor P. ¹ , Larina Tatyana V. ¹ , Klimov Oleg V. ¹ , Noskov Aleksandr S. ¹ , Atuchin Victor V. ^2,3,4,5

Affiliations

1	Surface Science Laboratory, Boreskov Institute of Catalysis, SB RAS, Novosibirsk 630090, Russia
2	Laboratory of Optical Materials and Structures, Institute of Semiconductor Physics, SB RAS, Novosibirsk 630090, Russia
3	Research and Development Department, Kemerovo State University, Kemerovo 650000, Russia
4	Department of Industrial Machinery Design, Novosibirsk State Technical University, Novosibirsk 630073, Russia
5	R&D Center “Advanced Electronic Technologies”, Tomsk State University, Tomsk 634034, Russia

Funding (1)

Russian Science Foundation

22-73-10144

Among the known synthesis procedures and reagents for unsupported Ni–Mo–W catalysts, there is no consensus about optimal preparation conditions of their precursors. In the present work, Ni–Mo–W precursors were prepared via three preparation techniques—hydrothermal synthesis, precipitation method and spray drying—after the synthesis of complex compounds in solution. Ni–Mo–W precursors were studied by the XRD analysis, SEM methods, Raman and UV-vis spectroscopies and XPS measurements and used for the hydrotreatment of straight-run gasoil. Precursors prepared by hydrothermal synthesis contain particles with stacked plate shapes, while other methods provide spherical particles. The formation of different amounts of individual molybdates, tungstates or mixed phases such as W1−xMoxO3 possibly doped by Ni was detected. The precipitation technique results in the formation of spheres, with W located at the center and is unavailable for catalysis. The catalytic activity increased when all active metals are available for the feedstock, and a more mixed phase containing Ni, Mo and W is formed. This mixed phase is realized when the synthesis of the Ni–Mo–W precursors is carried out in solution followed by spray drying. The resulting catalyst has 1.2–4 times higher activity than catalysts prepared by other methods.

Nadeina K.A. , Budukva S.V. , Vatutina Y.V. , Mukhacheva P.P. , Gerasimov E.Y. , Pakharukova V.P. , Prosvirin I.P. , Larina T.V. , Klimov O.V. , Noskov A.S. , Atuchin V.V.
Optimal Choice of the Preparation Procedure and Precursor Composition for a Bulk Ni–Mo–W Catalyst
Inorganics. 2023. V.11. N2. 89 :1-23. DOI: 10.3390/inorganics11020089 WOS Scopus РИНЦ AN OpenAlex

Submitted:	Jan 27, 2023
Accepted:	Feb 16, 2023
Published print:	Feb 20, 2023
Published online:	Feb 20, 2023

Web of science:	WOS:000945037800001
Scopus:	2-s2.0-85148766270
Elibrary:	50437074
Chemical Abstracts:	2023:433635
OpenAlex:	W4321371709

DB	Citing
Scopus	5
Elibrary	5
OpenAlex	5
Web of science	4