Catalysis Letters, Vol.127, No.3-4, 368-376, 2009
Slurry Impregnation of ZrO2 Extrudates: Controlled EggShell Distribution of MoO3, Hydrodesulfurization Activity, Promotion by Co
Catalysts with eggshell/uniform Mo concentration profiles were prepared by a reaction of ZrO2 and ZrO(OH)(2) extrudates with an aqueous slurry of MoO3. The thickness of the shell was regulated by the amount of MoO3. CoCO3 was adsorbed onto MoO3/ZrO2 from its aqueous slurry. The ZrO2-supported catalysts were compared to their TiO2-supported and industrial reference Al2O3-supported counterparts in a model reaction of benzothiophene hydrodesulfurization.
Keywords:MoO3/ZrO2;Eggshell Mo catalyst;CoMo/ZrO2;CoMo/TiO2;Slurry impregnation;Benzothiophene hydrodesulfurization