| 摘要 |
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 m/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(CHO), Ni(CHO), H[Mo(CHO)O], and the sulphur is contained in form of a sulphate anion SO?in the following concentrations, wt %: Co(CHO) or Ni(CHO) - 7.3-16.6; H[Mo(CHO)O] - 17.3-30.0; SO?- 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, volume ratio hydrogen/material equal to 100-1000 m/min the presence of the catalyst described above.EFFECT: method enables to restore catalyst activity by more than 99%.10 cl, 3 tbl, 9 ex |
