DIESEL FUEL HYDROSKIMMING METHOD Russian patent published in 2020 - IPC C10G65/16 C10G65/12 C10G45/02 

FIELD: technological processes.

SUBSTANCE: invention describes a method for hydroskimming diesel fuel, involving heating raw material in form of a straight-run fraction of diesel fuel and / or corresponding fractions of secondary processes and / or mixture thereof in a tubular furnace, mixing it with hydrogen-containing gas, catalytic hydrodesulphurisation of obtained mixture in two series-connected reactors to obtain purified hydrogenated product and subsequent fractionation of purified hydrogenated in rectification column, purifying hydrogen-containing gas in an absorption column from hydrogen sulphide, characterized in that the feedstock is mixed with a hydrogen-containing gas and hydrogen, are subjected to preliminary heating in recuperative heat exchangers and preliminary catalytic hydrogenation in additional reactor, wherein in the second of two series-connected reactors there is provided catalytic hydrodearomatisation of hydrogenated product coming from the first of two series-connected reactors.

EFFECT: disclosed is a method for hydroskimming diesel fuel, which provides longer service life of catalysts and purification of initial diesel fuel from organosulphur compounds.

11 cl, 1 dwg