FIELD: chemistry.
SUBSTANCE: present invention describes a method of producing hydrocarbon raw material for synthesis of biofuel from lignin. The method involves hydrotreatment of lignin-containing raw material to obtain raw material for biofuel. The lignin-containing raw material contains lignin which is separated from black liquor from a pulping method. The lignin is separated from black liquor from a pulping method by injecting carbon dioxide (CO2) gas. The lignin-containing raw material further contains still residues from an oil refining plant.
EFFECT: as a result of hydrotreatment of lignin contained in raw material for biofuel, oxygen content and average molecular weight of the latter decreases compared to lignin.
8 cl, 6 dwg
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