PRODUCTION METHOD OF LOW SULFUR DIESEL FUEL Russian patent published in 2017 - IPC C10G45/08 B01J23/882 B01J32/00 B01J21/02 B01J21/04 B01J35/00 

FIELD: chemistry.

SUBSTANCE: described the method of hydrofining the mixed and straight run diesel fractions with high sulfur content at the temperature of 340-380°C, the pressure 3.5-8.0 MPa, the raw materials mass consumption of 1.0-2.5 h^-1, volume ratio hydrogen/raw materials 300-500 m³/m³ in the presence of the heterogeneous catalyst, containing wt %: [Co (H₂O)₂(C₆H₅O₇)]₂[Mo₄O₁₁(C₆H₅O₇)₂] 33.0-43.0%; carrier - the rest. The carrier contains, wt %: aluminium borate Al₃BO₆ with the norbergite structure - 5.0-25.0; sodium - no more than 0.03; γ-Al₂O₃ - the rest; that after sulphidizing according to the known methods corresponds to the content, wt %: Mo - 10.0-14.0; Co - 3.0-4.3; S = 6.7-9.4; carrier - the rest. The carrier contains, wt %: aluminium borate Al₃BO₆ with the norbergite structure - 5.0-25.0; sodium - not more than 0.03; γ-Al₂O₃ - the rest. The aluminium borate Al₃BO₆ with the norbergite structure, including in the catalyst content, is the particles with dimensions from 10 to 200 nm, characterized by interplanar distances of 3.2 and 2.8 A, with the angle between them of 53.8°.

EFFECT: diesel fuel production, containing less than 10 ppm of sulfur during the hydrotreatment of straight-run and mixed diesel fractions with the high sulfur content.

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