FIELD: technological processes.
SUBSTANCE: invention relates to a method for carbon-enriched biomass material producing, to a material produced by this method, and to its use. Method for carbon-enriched biomass material producing comprises the stags of: (i) providing the lignocellulosic material as a feedstock, (ii) subjecting the said feedstock to a treatment at temperatures in the range of from 120 °C to 320 °C in the presence of a sub-stoichiometric amount of oxygen at an O2 or O2 equivalents concentration in the range of 0.15–0.45 mol/kg of dried lignocellulosic material provided that the complete combustion of the lignocellulosic material requires a stoichiometric amount of oxygen in a sealed reaction vessel, (iii) opening the said reaction vessel, and (iv) recovering the solid product from the reaction mixture.
EFFECT: carbon-enriched biomass material production with reduced content of by-product organic products.
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