METHOD FOR PROCESSING HYDROCARBON RAW MATERIALS Russian patent published in 2021 - IPC C10G7/00 C10G35/95 C10G59/02 

FIELD: hydrocarbon raw materials.

SUBSTANCE: invention relates to methods for processing hydrocarbon raw materials having a boiling point above 250°C for obtaining fuel fractions - high-octane gasoline fractions and kerosene and / or diesel fractions, and can be used in the oil and gas processing industries. The method is carried out by preliminary separation of raw materials in a separator at a temperature of 150-250°C with the release of a vaporous gasoline or naphtha fraction and a partially stripped liquid fraction of the raw material. Partially stripped raw material is subject to rectification in at least two rectification columns with separation of straight-run heavy gasoline fraction of raw material, and straight-run kerosene and / or diesel fraction, and residual fraction. The vaporous gasoline or gasoline-naphtha fraction isolated at the stage of separation of raw materials together with the heavy gasoline fraction isolated during the rectification of raw materials and possibly in a mixture with added oxygen-containing compounds is heated to the processing temperature and fed into the reactor or several reactors, where at a temperature of 320-480°С, excess pressure (preferably 1.0-3.0 MPa, and even better - 1.6-2.4 MPa) and mass feed rate of raw materials 1-6 h^-1. The mixture is subject to contact with a periodically regenerated zeolite-containing catalyst. The reaction products are cooled and separated by separation and rectification with the release of fraction (s) of hydrocarbon gases, possibly liquefied gas, high-octane gasoline fraction and secondary residual fraction. As a catalyst, systems containing zeolite or ferroaluminosilicate with the structure ZSM-5 or ZSM-11, incl. modified with metals of groups I-VIII or their compounds, are used.

EFFECT: reduction of the material load on the straight-run gasoline separation column, as a result of which energy consumption for cooling and heating of technological streams during fractionation of raw materials is reduced, as well as a decrease in the metal consumption of the column due to the use of a column of smaller diameter.

4 cl, 6 ex