METHOD OF HYDRO-TREATMENT OF HYDROCRACKING RAW MATERIALS Russian patent published in 2018 - IPC C10G45/08 B01J31/22 B01J21/02 B01J21/04 B01J23/04 

FIELD: technological processes.

SUBSTANCE: invention relates to methods for producing a hydrocracking feedstock. Hydrotreating process is described which consists in converting petroleum fractions having a boiling point higher than 360 °C, containing up to 3.5 % sulfur and up to 0.2 % nitrogen at a temperature of 360–420 °C, pressure 9.0–20.0 MPa, consumption of raw materials 0.5–1.5 h^-1, a hydrogen / feed volume ratio of 800–2,000 nm³/m³ in the presence of a heterogeneous catalyst containing, mass%: [Ni(H₂O)₂]₂[Mo₄O₁₁(C₆H₅O₇)₂] 29.0–36.0; boron in the form of surface compounds 0,4–1,6; carrier – the rest; wherein the carrier comprises, mass%: aluminum borate Al₃BO₆ with the structure of norbergite – 5.0–25.0; sodium – no more than 0,03; γ-Al₂O₃ – the rest. Aluminum borate Al₂BO₆ with the structure of norbergite is a particle with dimensions from 10 to 200 nm, characterized by interplanar distances of 3.2 and 2.8 Å, with an angle between them of 53.8°, and boron in the form of surface compounds is characterized by absorption bands of 930–1040, 1,230, 1,385–1,450 and 3,695 cm^-1 in IR spectra. Catalyst contains strong Broensted acidic sites, determined by the IR method from low-temperature adsorption data of CO, 2–6 mcmol/g (PA (affinity to the proton) = 1,180–1,200 kJ/mol) and Bronsted acidic sites of medium strength 30–60 mcmol/g (PA = 1,250–1,260 kJ/mol), and has a specific surface of 130–180 m²/g, a pore volume of 0.35–0.65 cm³/g, an average pore diameter of 10–15 nm, and is a particle with a section in the form of a circle, trefoil or quatrefoil. Technical result is the production of a hydrocracking feedstock with a low sulfur and nitrogen content during the hydrotreating of petroleum fractions, having a boiling point higher than 360 °C, containing up to 3.5 % sulfur and up to 0.2 % nitrogen.

EFFECT: obtaining a hydrocracking feedstock with a low sulfur and nitrogen content.

6 cl, 2 tbl, 7 ex