3-2-2　赤外線照射下でのセルロース急速熱分解によるレボグルコサン生成

抄録

Levoglucosan (LG) is an important primary pyrolysis product from cellulose in fast pyrolysis, but secondary pyrolysis reactions tend to reduce the yield. In the present study, cellulose was pyrolyzed by infrared heating under nitrogen flow. Because the nitrogen was not efficiently heated, the gaseous LG would be immediately cooled. The maximum yield of LG was 52.7 wt% under optimized conditions in this study. In addition, a new mechanism was clarified in which the pyrolysis of cellulose proceeded within a narrow region of carbonized material that absorbed infrared irradiation more efficiently. This is a feature of infrared heating, and high yields of LG were obtained regardless of the sample size.