METHOD OF DEEP OXIDATION-ABSORPTION DESULPHURISATION OF LIQUID HYDROCARBON FUELS, AND SORBENTS FOR ITS IMPLEMENTATION Russian patent published in 2013 - IPC C10G25/00 C10G25/05 B01J20/02 

FIELD: oil and gas industry.

SUBSTANCE: invention refers to petrochemistry, and namely to the process of deep desulphurisation of diesel hydrocarbon fuels. The invention refers to the method of deep oxidation-absorption desulphurisation of liquid hydrocarbon fuels, which involves preparation of a loose sorbent by mixing high-porous absorbents with nitric-acid salt of metal and further treatment of liquid hydrocarbons with the above sorbent, in which the sorbent can contain the binding agent as well, at that, the high-porous absorbent has been chosen from the group of bentonite, montmorillonite, absorbent carbon or high-porous silicon, and nitric-acid salt of metal has been chosen from the group of ferric nitrate, nickel nitrate, copper nitrate; prior to the treatment of liquid hydrocarbons, mixture of the sorbent ingredients is granulated to the particle sizes of 1-5 mm with specific sorbent surface of 50-600 m²/g; at that, treatment is performed by passing the flow of liquid hydrocarbons through a layer of granulated sorbent with volumetric velocity of not more than 100 h^-1. The invention also refers to compositions of sorbents used for the method's realisation.

EFFECT: increasing the efficiency of liquid hydrocarbon fuel cleaning from sulphur containing compounds and providing the continuous process.

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