P-24 微細藻類の水熱炭化によるバイオチャーの生成

抄録

Hydrothermal carbonization is a treatment method for heating a biomass in high pressure water to obtain a char product. In this study, hydrothermal carbonization of microalgae was carried out using ethanol and water. Ethanol boiling point is lower than that of water. So, it was expected that when mixed with water, the critical point moved to a lower temperature as compared with water alone. However, addition of ethanol is also considered to reduce reactivity. Therefore, in this experiment, the mixing ratio of ethanol during hydrothermal carbonization was changed, and the influence on char was confirmed.