PROCEDURE FOR PROCESSING OIL RESIDUES Russian patent published in 2015 - IPC C10B55/00 C10C1/16 C10G9/00 

FIELD: oil and gas industry.

SUBSTANCE: invention can be used in oil-refining industry. The procedure for processing oil residues includes heating of the raw material (1) in the oven (2), delivery to the rectification tower (4) with formation of the secondary raw material, polycondensation of the thermally treated secondary raw material in the reactor (25, 26) with obtainment of the target products. The target products are pitch and coke received simultaneously in the same unit. The process cycle includes stages of pitching, coking, preparation of the reactor (25, 26) for shutdown and coke discharge, spare time and preparation of the reactor (25, 26) for start-up, which are performed in sequence in the same reactor (25, 26). At the coking stage the polycondensation product after the reactor (25, 26) is cooled by light gas oil up to temperature of 380-440°C and then stripping is performed in the evaporator (32) and vacuum column (41) with receipt of medium-temperature and high-temperature oil cokes respectively. At that when the preparation of the reactor (25) for shutdown and coke discharge is carried out in the second parallel reactor (26) the coking stage is carried out, thereafter further stages of the above cycle are performed in the second reactor, then the cycle is repeated in both reactors (25, 26).

EFFECT: invention allows reducing shutdown time of the units, complete mechanizing of the reactor cleaning process, increasing resources of the raw material due to residue products, expanding assortment of commercial products, reducing losses of oil products, improving environmental measures of the process, reducing operational and capital costs.

2 cl, 1 dwg, 2 tbl