BIOMASS HYDROLYSIS FOR OBTAINING HIGH-QUALITY LIQUID FUELS Russian patent published in 2015 - IPC C07C1/00 C10G1/00 

FIELD: chemistry.

SUBSTANCE: invention relates to versions of methods for obtaining liquid products from biomass. Method includes the following stages: a) biomass hydrolysis in reactor hydrolysis reservoir, containing molecular hydrogen and deoxigenation catalyst to obtain product, containing CO₂, CO and C₁-C₃ gas, partially deoxygenated hydrolysis product and charcoal, at hydrolysis reactor output; b) removal of said charcoal from said partially deoxygenated hydrolysis product; c) hydroconversion of said partially deoxygenated hydrolysis product in reactor hydroconversion reservoir with application of hydroconversion catalyst in presence of CO₂, CO and C₁-C₃ gas, generated at step a), to obtain in fact fully deoxygenated hydrocarbon liquid and gas mixture, containing CO, CO₂ and light hydrocarbon gases (C₁-C₃), d) steam reforming of, at least, part of said gas mixture to obtain molecular hydrogen of reforming and e) introduction of said molecular hydrogen of reforming into said reactor reservoir for said biomass hydrolysis. Steps a) and c) function under conditions, in which approximately 30-70% of oxygen in said biomass are converted into H₂O and approximately 30-70% of said oxygen are converted into CO and CO₂.

EFFECT: method makes it possible to maximise output with simultaneous preservation of high degree of oxygen removal.

44 cl, 8 dwg, 1 tbl