| abstract |
Hydrotreatment catalysts have been developed. The catalyst is a crystalline transition metal molybdenum tungstate material and / or a metal sulfide derived from it. Hydrogenation treatments using crystalline transition metal molybdenum tungstate materials include hydrogen denitrification, hydrodesulfurization, hydrodemetallization, hydrogen desilicate acid, hydrogen dearomatic, hydrogen isomerization, hydrogen treatment, and hydrogen purification. , And hydrocracking. [Selection diagram] Fig. 1 |