PROCESSING METHOD OF CRUDE OIL PROCESSING RESIDUES Russian patent published in 2021 - IPC C10G69/02 

FIELD: oil and gas industry.

SUBSTANCE: invention relates to oil refining. Invention relates to a method for processing non-converted oil processing residues, which includes delayed coking to obtain coking distillates - light coking gas oil and coking naphtha, mixing them with distillates of other processes, combined hydrotreating and subsequent rectification to obtain a gasoline fraction, diesel fuel fractions, wherein in the process of rectification of hydrofining products, a fraction of gasoline with temperature from the beginning of boiling to 160°C, diesel fraction is a winter diesel fraction with a boiling point of 140°C to 300°C and summer diesel fraction with a boiling point of 240°C to 370°C, and as distillates of other processes, catalytic cracking light gasoil is used at their following ratio during hydrofining, wt%: easy coking gasoil of 50-80; Coking naphtha 5-20; easy catalytic cracking gasoil 10-30.

EFFECT: technical result is increased depth of processing of non-converted residues without use of expensive straight-run distillate to obtain winter diesel fraction with boiling point from 140°C to 300°C and a summer diesel fraction with a boiling point of 240°C to 370°C with low sulfur content, high cetane number and low filterability limit temperature.

1 cl, 2 tbl