Simultaneous Hydrothermal Pretreatment and Ball Milling of Bamboo
Ryunosuke MATSUMOTO, Machi KANNA, Yukihiko MATSUMURA
Bamboo is an attractive alternative and renewable fuel source compared to fossil fuels. However, there is a requirement for increasing the efficiency and reducing the costs associated with the methods by which bamboo is processed. Bamboo was simultaneously treated by ball milling and hydrothermal pretreatment, using a rotatable autoclave, which is heated by an electric furnace. The product was then enzymatically treated in order to yield glucose. The effects of biomass content, target temperature, and ball loading for the simultaneous hydrothermal pretreatment and ball milling on the product yields were determined. The highest total glucose yield was obtained for biomass loading of 0.10 kg/kg, target temperature of 200 °C, and ball loading of 1.0 kg. The reaction rate parameters were determined based on a reaction network proposed in a previous study. We observed that the ratio of each reaction rate is the same over a range temperature in hydrothermal treatment.
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