| 摘要 |
The present invention relates to a method for producing a catalyst based on tungsten intended for a hydrotreatment process or a hydrocracking process. The present invention relates to a method for producing a catalyst for performing hydrogenation reactions in the hydrotreatment process and hydrocracking process. The catalyst has at least one W=O or W-OR bond or at least one W+S bond or W-SR bond [R = C_xH_y, x >= 1 and ( x - 1 ) <= y <= ( 2x + 1 ) or R = Si (OR′)_3 or R = Si(R′)_3, wherein R′ = C_x′H_y′, x′ >= 1 and ( x′ - 1 ) <= y′ <= ( 2x′ + 1 )], and is produced from at least one mononuclear precursor based on tungsten in a monomer or dimer shape and selectively from at least one promoter from VIII family. The precursors are deposited on an oxide carrier, and the carrier is appropriate to a process in which the same is used. The catalyst is advantageously sulfurized before being disposed in the process. |
