The Effect of Lithium on NiMo/Al2O3 Hydrotreating Catalysts Prepared from Heteropolycompounds.

0570564 - ÚCHP 2025 RIV US eng J - Journal Article
Kaluža, Luděk - Jirátová, Květa - Spojakina, A.A. - Balabánová, Jana - Gulková, Daniela - Koštejn, Martin - Palcheva, R. - Tyuliev, G. - Fajgar, Radek
The Effect of Lithium on NiMo/Al2O3 Hydrotreating Catalysts Prepared from Heteropolycompounds.
Catalysis Letters. Roč. 154, č. 2 (2024), s. 430-447. ISSN 1011-372X. E-ISSN 1572-879X
Institutional support: RVO:67985858
Keywords : NiMo/Al2O3 catalysts * lithium * nickel heteropolymolybdate
OECD category: Chemical process engineering
Impact factor: 2.8, year: 2022
Method of publishing: Limited access

Recently, simultaneous hydrotreatment of various petroleum fractions and plant feedstocks has been in demand. NiMo catalysts can be active in these processes. Therefore, supported NiMo oxide catalysts were prepared by impregnating an alumina support with Anderson’s molybdenum salt (ammonium salt of nickel heteropolymolybdate (NH4)4NiMo6O24H6) and lithium carbonate. The prepared catalysts were tested in hydrodesulfurization (HDS) of thiophene and parallel HDS/HDO (hydrodeoxygenation) of 1-benzothiophene and octanoic acid. Experimental data showed a positive effect of lithium on the parallel HDS/HDO reactions and a negative effect on the HDS of thiophene. A significant effect of lithium on the acidity and reducibility of the NiMo/Al2O3 catalyst as well as the contribution of an Anderson-type heteropolycompound was demonstrated.
Permanent Link: https://hdl.handle.net/11104/0341865