SYSTEM AND PROCESS FOR PRODUCING ORGANIC RAW MATERIAL FROM RAW BIOMASS MATERIAL

摘要

A production system which comprises: a pretreatment device (12) in which a raw biomass material (11) is pulverized; a hydrothermal decomposer (14) in which the pulverized biomass (13) is hydrothermally decomposed while being brought into countercurrent contact with pressurized hot water (15) and a lignin component and a hemicellulose component are transferred to the pressurized hot water (15) to thereby separate the lignin component and hemicellulose component from the biomass solid; a first enzymatic decomposer (19-1) in which cellulose contained in the biomass solid matter (17) discharged from the hydrothermal decomposer is treated with an enzyme (18) to enzymatically decompose the cellulose into a sugar solution containing hexoses; a fermenter (21) in which the sugar solution (20) obtained in the first enzymatic decomposer (19-1) is fermented to produce ethanol; and a purifier (25) in which the alcohol fermentation broth (22) is purified to separate it into the ethanol (23) and a residue (24).