METHOD OF PRODUCING LIQUID HYDROCARBON MIXTURES BY HYDROCONVERSION OF LIGNOCELLULOSE BIOMASS Russian patent published in 2015 - IPC C10G1/00 C10G3/00 C10G45/00 C10G69/02 

FIELD: chemistry.

SUBSTANCE: method of producing liquid hydrocarbon mixtures is carried out via hydroconversion of lignocellulose biomass in a solvent medium in the presence of a dispersed catalyst precursor. The method includes drying the biomass; grinding the biomass; preparing a paste from the ground biomass, solvent and dispersed catalyst precursor; hydroconversion of the prepared paste; separating the obtained products in a system of separators; the method is characterised by that the solvent used is an organic solvent having viscosity of 0.5-2.5 Pa·s at 60-90°C, which contains 2-5.5 wt % sulphur and 5-25 wt % polycyclic aromatic hydrocarbons and/or derivatives thereof, and grinding of the biomass and preparation of said paste is carried out via dispersion with mechanical activation of the biomass in a solvent medium containing a catalyst precursor, wherein the prepared paste is first heated in an inert atmosphere to temperature of 330-380°C and pressure of 0.2-0.5 MPa until removal of the basic amount of oxygen in the biomass in the form of CO, CO₂ and H₂O, followed by hydroconversion.

EFFECT: high output of liquid products of hydroconversion of the biomass, higher conversion of the biomass and simpler process.

10 cl, 10 tbl, 2 dwg, 7 ex