REGENERATED CATALYST FOR HYDROFINING HYDROCARBON MATERIAL, METHOD OF REGENERATING DEACTIVATED CATALYST AND PROCESS OF HYDROFINING HYDROCARBON MATERIAL Russian patent published in 2013 - IPC B01J23/94 C10G45/08 B01J23/88 B01J21/00 B01J27/53 B01J31/04 B01J38/12 B01J38/62 B01J37/02 

FIELD: chemistry.

SUBSTANCE: invention relates to a regenerated hydrofining catalyst, a method of regenerating deactivated catalysts and a method of hydrofining oil distillates. Described is a regenerated catalyst for hydrofining hydrocarbon material, having pore volume of 0.3-0.8 ml/g, specific surface area of 150-280 m²/g, average pore diameter of 6-15 nm, which contains molybdenum, cobalt or nickel, sulphur and a support, wherein the molybdenum, cobalt or nickel is contained in the catalyst in form of nitrate complexes of compounds Co(C₆H₆O₇), Ni(C₆H₆O₇), H₄[Mo₄(C₆H₅O₇)₂O₁₁], and the sulphur is contained in form of a sulphate anion SO₄ ^-2 in the following concentrations, wt %: Co(C₆H₆O₇) or Ni(C₆H₆O₇) - 7.3-16.6; H₄[Mo₄(C₆H₅O₇)₂O₁₁] - 17.3-30.0; SO₄ ^-2 - 0.25-2.70; support - the balance; cobalt or nickel citrates can be coordinated to molybdenum citrate. Described is a method of regenerating a catalyst for hydrofining hydrocarbon material according to which a deactivated catalyst is fired and then saturated with citric acid solution and the dried in conditions which enable to obtain the catalyst described above. Described is a method of hydrofining hydrocarbon material at temperature of 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: method enables to restore catalyst activity by more than 99%.

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