3-1-1 竹のトレファクションにおける伝熱特性およびガス生成に関する研究

抄録

The heat and mass transfer characteristics during torrefaction of packed bed of bamboo powder have been investigated. Packed bed of bamboo powder was heated with and without the presence of carrier gas. For the heating without carrier gas, the temperature rise and final temperature varied depends on the locations inside the packed bed. Thus, it is difficult to evaluate the relationship between the chemical reaction and the temperature. Meanwhile, for the heating with carrier gas, the temperature rise were identical, resulting thermal decomposition in every locations occurred simultaneously, resulting the thermal reaction behavior became more obvious. The almost constant gas generation after the peak was considered as the result of thermal decomposition of hemicellulose, which occurred gently at temperature range 400 K < T < 550 K, as shown in the thermogravimetric result.