METHOD OF OBTAINING HYDROTREATED DIESEL FUEL Russian patent published in 2018 - IPC C10G45/08 B01J23/882 B01J27/53 B01J27/19 B01J31/22 B01J31/40 

FIELD: technological processes.

SUBSTANCE: invention relates to methods for hydrotreating diesel fuels based on the use of regenerated hydrotreating catalysts. Method is described for hydrotreating diesel fuel at a temperature of 340–390 °C, pressure 3–9 MPa, volumetric consumption of raw materials 1.0–2.5 h^-1, volume ratio hydrogen/raw materials 300–600 m³/m³ in the presence of a regenerated hydrotreating catalyst having a pore volume of 0.3–0.8 ml/g, specific surface area 150–280 m²/g, an average pore diameter of 6–15 nm, including molybdenum, cobalt, phosphorus, sulfur and a carrier, molybdenum, cobalt and phosphorus are contained in the catalyst in the form of a mixture of complex compounds Co(C₆H₆O₇), H₄[Mo₄(C₆H₅O₇)₂O₁₁], H₃[Co(OH)₆Mo₆O₁₈], H₆[P₂Mo₅O₂₃], sulfur is contained in the form of sulfate anion SO₄^2-, phosphorus is contained in the form of the phosphate anion PO₄^3- in the following concentrations, wt. %: Co(C₆H₆O₇) – 6.3–13.0; H₄[Mo₄(C₆H₅O₇)₂O₁₁] – 8.6–11.2; H₃[Co(OH)₆Mo₆O₁₈] – 6.2–7.7; H₆[P₂Mo₅O₂₃] – 4.0–10.2; SO₄^2- – 0.7–2.6; PO₄^3- – 0.5–4.4; carrier – the rest.

EFFECT: production of hydrotreated diesel fuel with low sulfur and nitrogen content in the presence of regenerated catalysts.

3 cl, 2 tbl, 4 ex