| abstract |
Hydroprocessing catalysts have been developed. The catalyst is a crystalline transition metal molybdotungstate material or a metal sulfide derived therefrom, or both. Hydroprocessing using crystalline transition metal molybdotungstate materials includes hydrodenitrification, hydrodesulfurization, hydrodemetallation, hydrodesilication, hydrodearomatization, and hydroisomers. Hydroisomerization, hydrotreating, hydrofining, and hydrocracking may be included. |