METHOD FOR PRODUCING ANODE COKE FROM CRUDE OIL Russian patent published in 2023 - IPC C10B55/00 C10G7/00 C10G9/00 

FIELD: oil refining.

SUBSTANCE: group of inventions is related in particular to methods for producing anode coke in a delayed coking unit (DCU). The method includes: loading hydrocarbon feedstock (1; 32) into a desalting unit (2; 33) to obtain a desalted crude oil stream (3; 34); redirection of the desalted stream (3; 34) to the preseparator chamber (4; 35) to obtain a stream of lighter fractions (5; 36) with a boiling point < 300°C and a stream of heavier fractions with a boiling point > 300°C; direction of flow of heavier fractions into the furnace (8; 39); feeding the heated stream (9; 40) leaving the furnace (8; 39) into coke drums (12/13; 43/44) to produce lighter hydrocarbons and coke by cracking; the direction of the flow leaving the drums (16; 47) into the main fractionating unit (17; 49) to produce light coking gas oil, heavy coking gas oil, petroleum fuel; mixing a stream of gaseous products (18; 50) from the main fractionation unit (17; 49) with a stream of lighter fractions (5; 36) with a boiling point < 300°C; transferring the crude petroleum coke (25; 57) obtained from the coke drum to a feed hopper (26; 58) and receiving a feed stream for calcination (27; 59); and calcination of crude petroleum coke (27; 59) in a furnace (28; 60) and transferring the calcined coke (29; 61) to a cooling unit (30; 62) to obtain anode coke (31; 63).

EFFECT: production of anode coke with a low content of impurities directly from crude oil in the ultrasonic unit and with higher quality, in which technological limitations in the operation of ultrasonic units associated with the processing of crude oil are eliminated, as well as the maximum recovery of lighter boiling fractions in the production of anode coke.

12 cl, 2 dwg, 12 tbl, 3 ex