CATALYST, METHOD FOR PREPARATION THEREOF AND METHOD OF PRODUCING LOW-SULPHUR DIESEL FUEL Russian patent published in 2013 - IPC B01J23/882 B01J37/02 C10G45/08 B01J21/04 B01J21/06 

FIELD: chemistry.

SUBSTANCE: invention relates to catalysts for hydrofining diesel fuel, methods of preparing said catalysts and methods of producing low-sulphur diesel fuel. Described is a catalyst which contains the compound [Co(C₆H₆O₇)]₂[Mo₄O₁₁(C₆H₅O₇)₂] in amount of 30-45 wt %, titanium dioxide 0.8-6.0 wt %, Al₂O₃ 51.0-69.2 wt %, which corresponds to the content of the following in a catalyst which is calcined at 550°C, wt %: MoO₃ - 14.0-23.0; CoO - 3.6-6.0; TiO₂ - 1.1-6.2; Al₂O₃ - the balance; having pore volume of 0.3-0.6 ml/g, specific surface area of 150-220 m²/g and mean pore diameter of 8-15 nm, moulded into particles in form of a tri-lobe shape with diameter of 1.0-1.5 mm, having bulk mechanical strength according to Shell SMS 1471 of not less than 1.5 MPa. The method of preparing the catalyst involves making a support containing, wt %: TiO₂ - 1.5-7.5; Al₂O₃ - the balance; having specific surface area of 170-240 m²/g, pore volume of 0.5-0.95 cm³/g and mean pore diameter of 8-15 nm, by moulding paste obtained by mixing powdered AlOOH and TiO₂ with water, nitric acid or ammonia, followed by drying and calcination; applying the compound [Co(C₆H₆O₇)]₂[Mo₄O₁₁(C₆H₅O₇)₂] onto the obtained support by incipient wetness impregnation or from excess solution, and drying. The process of producing low-sulphur diesel fuel is carried out in the presence of the catalyst described above.

EFFECT: obtaining a catalyst with high mechanical strength, having maximum activity in desired reactions occurring when hydrofining hydrocarbon material.

7 cl, 5 ex