CATALYST FOR HYDROFINING HYDROCARBON MATERIAL, METHOD OF PREPARING SAID CATALYST AND HYDROFINING PROCESS Russian patent published in 2010 - IPC B01J23/882 B01J23/883 B01J21/02 B01J21/04 B01J37/02 C10G45/08 B01J38/62 

FIELD: chemistry.

SUBSTANCE: invention relates to catalysts for preparing petroleum fractions with low content of sulphur and nitrogen, methods of preparing such catalysts and processes for hydrofining hydrocarbon material. The invention describes a catalyst for hydrofining hydrocarbon material, having pore volume of 0.3-0.7 ml/g, specific surface area of 200-350 m²/g and average pore diametre of 9-13 nm, and containing a boron compound and a bimetallic complex compound [M(H₂O)_x(L)_y]₂[Mo₄O₁₁(C₆H₅O₇)₂], where: M=Co²⁺ and/or Ni²⁺; L is a partially deprotonated form of citric acid C₆H₈O₇; x=0 or 2; y=0 or 1; - 30-45 wt %, a boron compound in amount of 1.06-3.95 wt %, Al₂O₃ -51.05-68.94 wt %, which corresponds to the following content in a catalyst annealed at 550°C, wt %: MoO₃ - 14.0-23.0; CoO and/or NiO - 3.6-6.0; B₂O₃ -0.6-2.6 Al₂O₃ - the rest. The catalyst is prepared through saturation of aluminium oxide with a pre-synthesised solution of a bimetallic complex compound [M(H₂O)_x(L)_y]₂[Mo₄O₁₁(C₆H₅O₇)₂] and a boron compound, wherein concentration of the bimetallic compound in the solution provides 40-45 wt % bimetallic complex compound in the ready catalyst. The process of hydrofining hydrocarbon material is carried out at temperature 320-400°C, pressure 0.5-10 MPa, weight flow rate of material of 0.5-5 h^-1, volume ratio hydrogen/material equal to 100-1000 m³/m³ in the presence of the catalyst described above.

EFFECT: maximum catalyst activity in target reactions taking place when hydrofining hydrocarbon material, which ensures obtaining petroleum products with low residual content of sulphur.

8 cl, 8 ex, 2 tbl