The effect of lithium on NiMo/Al2O3 hydrotreating catalysts prepared from heteropolycompounds
Recently, simultaneous hydrotreatment of various petroleum fractions and plant feedstocks has been in demand. Nickel-molybdenum catalysts can be active in these processes. Therefore, NiMo oxide catalysts have been prepared by impregnating an alumina support with Anderson molybdenum salt and lithium carbonate. The prepared catalysts were tested in the hydrodesulfurization (HDS) of thiophene and the parallel hydrodeoxygenation (HDO) 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 heteropolymer compound was demonstrated.
- Kaluža L., Jirátová K., Spojakina A.A., Balabánová J., Gulková D., Koštejn M., Palcheva R., Tyuliev G., Fajgar R.: The Effect of Lithium on NiMo/Al2O3 Hydrotreating Catalysts Prepared from Heteropolycompounds. Catal. Lett. 154, 430-447, 2024. DOI