METHOD FOR PRODUCTION OF ALL-YEAR UNIFIED DIESEL FUEL Russian patent published in 2021 - IPC C10G45/06 C10G45/62 

FIELD: chemistry; technological processes.

SUBSTANCE: invention relates to a method of producing all-year unified diesel fuel from middle distillate fractions of atmospheric distillation of oil, which are hydrotreated in the presence of aluminum cobalt-molybdenum or aluminum nickel-molybdenum catalysts, obtained product after hydrotreatment is hydroisomerised in presence of platinum-containing catalyst, anti-wear additive is added to hydroisomerisation product. Hydrotreating process is carried out at pressure of 6.5–9.0 MPa to content in product after hydrofining of sulfur not higher than 10 mg/kg, nitrogen – not more than 1 mg/kg, aromatic hydrocarbons – not more than 16 wt.%, hydroisomerisation process is carried out at pressure 4.1–4.9 MPa, volumetric feed rate 1.8–2.5 h^-1, ratio of hydrogen-containing gas to product 190–290, addition to the hydroisomerisation product is added kerosene of hydrofining of other oil products in amount of 0.1–10.0 wt.% and a cetane improve additive in amount of 1,000–2,000 mg/kg.

EFFECT: obtaining all-season unified fuel, which has considerably better low-temperature properties and higher flash point, as well as reduced production costs, reduced amount of hydrogen used, reduced power consumption of the method.

1 cl, 1 tbl, 1 dwg