Impact of Al and Ti ions on the dispersion and performance of supported NiMo(W)/SBA-15 catalysts in the HDS and HYD reactions

SBA-15 Mesoporous Silica as Catalytic Support for Hydrodesulfurization Catalysts—Review

“…Ti-SBA-15-supported NiMo and NiW sulfide catalysts exhibited the enhancement of the activity in HDS and HDN reactions with respect to Ti-free counterparts [32]. This is because an enhancement of the active phase dispersion leads to an increase of the support acidity.…”

“…During the last two decades, various mesoporous structures have been synthesized, which can be roughly classified into three categories based on the pore types: nearly spherical cage, cylindrical channel and bi-continuous channel [19]. Among different ordered mesoporous silicas, SBA-type silicas are the most frequently studied [13,14,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,…”

Tuning Hydrodesulfurization Active‐Phase Dispersion using Optimized Mesoporous Titania‐Doped Silica Supports

“…Furthermore, the incorporation of Ti within the SBA structure was attempted by several groups, with Si/Ti ratios between 80 and 20. [34][35][36][37] However, the incorporated amounts were quite low, and the highest incorporated TiO 2 content was 6.2 wt % (Si/Ti = 20). The Ti-containing supports appeared to be more active than their Ti-free counterparts in thiophene HDS, [34] dibenzothiophene (DBT) HDS [35,36] and biphenyl hydrogenation.…”

Synthesis of TiO2 nanoparticles on mesoporous aluminosilicate Al-SBA-15 in supercritical CO2 for photocatalytic decolorization of methylene blue

“…Actually, direct-synthesis method is more favorable because it will not only enhance the hydrothermal stability and create new acid cites, but also extend the specific surface area to a certain extent [14]. These traits enable Al-SBA-15 as a suitable catalyst and support [13][14][15][16][17].…”