1-04　コークスの反応性に及ぼす熱処理バイオマス配合の影響

抄録

To reduce carbon dioxide (CO₂) emission, replacement of coal used for cokemaking to carbon-neutral material such as “biomass” is required. However, one difficulty in using biomass for cokemaking is the increase in coke reactivity of CO₂ gasification reaction due to biomass addition. Therefore, effects of heat-treated biomass addition on coke reactivity and control methods for the reactivity were investigated. Obtained results demonstrated that the addition of heat-treated biomass increased the coke reactivity. On the other hand, increase in coking temperature and reflectance of coal (Ro) decreased the coke reactivity. Based on the X-ray diffraction analysis, it was suggested that decrease in the coke reactivity with increase in coking temperature and Ro is attributable to increase in the coke crystalline.