BIOMASS DECOMPOSITION APPARATUS AND METHOD THEREOF, AND SUGAR-SOLUTION PRODUCTION SYSTEM USING BIOMASS MATERIAL

摘要

To include a hydrothermal decomposition unit 17 that transports a fed biomass material 11 from one side (a lower side) to the other side (an upper side) by a screw 14 in an apparatus body 13, feeds pressurized hot water 15, which is treat water, from the other side (the upper side) that is different from a feed position of the biomass material 11 into the apparatus body 13, hydrothermally decomposes the biomass material 11 while bringing the biomass material 11 into counter contact with the pressurized hot water 15, transfers hot-water soluble fractions into a hot-water effluent 16, which is pressurized hot water to be discharged, and separates a lignin component and a hemicellulose component from the biomass material 11, and also to include a biomass discharging unit 19 that discharges a biomass solid 18 from the other side (an upper side) of the apparatus body 13 under an increased pressure to put it under a normal pressure and a solid-liquid separator 20 that discharges the effluent 16 from the one side of the apparatus body 13. Further, a scraping unit 21 is provided at an end of a flight of the screw 14 positioned within an installation area of the solid-liquid separator 20.