SUGAR SOLUTION MANUFACTURING APPARATUS, FERMENTATION SYSTEM, SUGAR SOLUTION MANUFACTURING METHOD, AND FERMENTATION METHOD

摘要

An alcohol manufacturing system (10A) of the present invention has a sugar solution manufacturing apparatus (11A), an alcohol fermentation tank (12), a distillation column (13), and an alcohol tank (14). The sugar solution manufacturing apparatus (11A) is characterized in having: a separation device (15) for separating an edible raw material (21) having a carbohydrate-based raw material, and a nonedible raw material (22) having a cellulose-based biomass raw material containing a lignin component and a hemicellulose component; a sugar solution adjustment unit (16A) for producing a sugar solution (23) derived from the edible raw material (21); a nonedible raw material saccharification unit (17A) for saccharifying the product of hot water treatment of the biomass obtained by separation of the nonedible raw material (22) in the separation device (15) and manufacturing a dilute sugar solution (30); and a dilute sugar solution feed pipe (L21) for feeding to the sugar solution adjustment unit (16A) the dilute sugar solution (30) obtained in the nonedible raw material saccharification unit (17A). This makes it possible to reduce costs together with improving the production efficiency of the sugar solution (23).