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

Kaluža, Luděk; Jirátová, Květa; Spojakina, A.; Balabánová, Jana; Gulková, Dana; Koštejn, Martin; Palcheva, R.; Tyuliev, G.; Fajgаr, Radek

doi:10.1007/s10562-023-04315-0

Cited by 3 publications

(1 citation statement)

References 53 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In particular, Kaluza et al modified the NiMo/Al 2 O 3 incorporating low concentrations of lithium [41]. The authors mentioned that the lithium presence cause a decrease in the acid properties of the catalysts and this was clearly reflected in the HDS of thiophene.…”

Section: Introductionmentioning

confidence: 99%

Systematic analysis of the gallium ions and structure-directing agents in the preparation of NiW HDS catalysts over mixed oxides of Al₂O₃-TiO₂

Guzmán-Cruz,

Pacheco-Sosa,

Morales de la Garza

et al. 2024

Mater. Res. Express

View full text Add to dashboard Cite

In this study, we prepared Al2O3-TiO2 (AT) mixed oxides to synthesize NiW catalysts for sulfur removal reactions. AT support samples were prepared using various surfactants. Additionally, gallium atoms (2.4 wt%) were introduced as an additive to coat the outer surface layers of the AT support that lacked Al3+ or Ti2+ cations. The characterization results showed substantial differences in textural properties, chemical composition, and surface acidity. XPS and High-resolution TEM results demonstrated that the NiW/AT-L-Ga sample has a better combination of dispersion, sulfidation, and promotion among materials. Sulfided NiW/AT-L-Ga catalyst had the highest catalytic activity. After incorporating Ga, XPS observed that the activity could be associated with an increase in the NiWS active phase; however, including a surfactant in the synthesis of the support allowed an increase in the amount of NiWS phase. Active phase was modeled considering the HRTEM results for the slab length, revealing the atoms at the border susceptible to promotion.

show abstract

Section: Introductionmentioning

confidence: 99%

Systematic analysis of the gallium ions and structure-directing agents in the preparation of NiW HDS catalysts over mixed oxides of Al₂O₃-TiO₂

Guzmán-Cruz,

Pacheco-Sosa,

Morales de la Garza

et al. 2024

Mater. Res. Express

View full text Add to dashboard Cite

show abstract

Hydro-deoxygenation of waste biomass pyrolysates on cobalt-sulfided catalyst for the production of BTX fuels

Ismail,

Ali,

Shittu

et al. 2024

Case Studies in Chemical and Environmental Engineering

View full text Add to dashboard Cite

The impact of the water phase in the gasoil fraction on the CoMo hydrotreating catalyst's performance

Bykova,

Nadeina,

Vatutina

et al. 2024

Fuel

View full text Add to dashboard Cite

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

Cited by 3 publications

References 53 publications

Systematic analysis of the gallium ions and structure-directing agents in the preparation of NiW HDS catalysts over mixed oxides of Al₂O₃-TiO₂

Systematic analysis of the gallium ions and structure-directing agents in the preparation of NiW HDS catalysts over mixed oxides of Al₂O₃-TiO₂

Hydro-deoxygenation of waste biomass pyrolysates on cobalt-sulfided catalyst for the production of BTX fuels

The impact of the water phase in the gasoil fraction on the CoMo hydrotreating catalyst's performance

Contact Info

Product

Resources

About

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

Cited by 3 publications

References 53 publications

Systematic analysis of the gallium ions and structure-directing agents in the preparation of NiW HDS catalysts over mixed oxides of Al2O3-TiO2

Systematic analysis of the gallium ions and structure-directing agents in the preparation of NiW HDS catalysts over mixed oxides of Al2O3-TiO2

Hydro-deoxygenation of waste biomass pyrolysates on cobalt-sulfided catalyst for the production of BTX fuels

The impact of the water phase in the gasoil fraction on the CoMo hydrotreating catalyst's performance

Contact Info

Product

Resources

About

Systematic analysis of the gallium ions and structure-directing agents in the preparation of NiW HDS catalysts over mixed oxides of Al₂O₃-TiO₂

Systematic analysis of the gallium ions and structure-directing agents in the preparation of NiW HDS catalysts over mixed oxides of Al₂O₃-TiO₂