METHOD FOR CATALYTIC PROCESSING OF VEGETABLE OILS INTO HYDROCARBONS OF DIESEL FRACTION Russian patent published in 2023 - IPC C10G3/00 C10L1/04 

FIELD: fuel production.

SUBSTANCE: production of hydrocarbon fuels obtained from renewable raw materials of plant origin. The invention relates to a method for the catalytic processing of vegetable oils into hydrocarbons of the diesel fraction, including one-stage processing by deoxygenation of raw materials in a supercritical solvent at a temperature from 240 to 280°C in the presence of a solvent in a supercritical state and a heterogeneous catalyst, while processing is carried out at an initial nitrogen pressure of 1.9-2.1 MPa for 1-3 hours at a stirring speed from 450 min^-1 to 550 min^-1, the reaction mixture contains 0.05-0.15 g of heterogeneous catalyst, 0.5-1.5 g of vegetable oil and 20-30 ml of solvent, the solvent is a mixture of 2-propanol and n-hexane in a volume ratio of 30-50:70-50 vol.%, and the heterogeneous catalyst contains 1 wt.% palladium, 3 wt.% copper (I) oxide as the active phase and 96 wt.% hypercrosslinked polystyrene as a carrier.

EFFECT: increase in the yield of hydrocarbons in the diesel fraction of oil, a decrease in the pressure of the deoxygenation process and no need to use hydrogen-containing gas.

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