PROCESSING METHOD OF NON-CONVERTED RESIDUES OF OIL REFINING PROCESSES Russian patent published in 2020 - IPC C10G69/02 

FIELD: oil and gas industry.

SUBSTANCE: invention relates to oil processing, specifically to a method for processing non-converted residues of oil processing. Invention relates to a method for processing non-converted residues of oil processing processes includes delayed coking to obtain coking distillates – light coking gasoil and coking naphtha, mixing them with distillates of other processes, combined hydrotreating and subsequent rectification to obtain a gasoline fraction, a diesel fuel fraction, at that, in the process of rectification of hydrotreated products, a fraction of gasoline is selected – 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 a summer diesel fraction with a boiling point of 240 °C to 370 °C, and as distillates of other processes, catalytic cracking light gasoil and viscosity breaking light gasoil are used at their following ratio during hydrofining, wt%: coking light gasoil 50–80; coking naphtha 5–20; catalytic cracking light gasoil 5-30; viscosity breaking light gasoil 5–20.

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

1 cl, 2 tbl