固体バイオマス燃料の燃焼挙動評価と速度論解析

抄録

Nowadays the demand for energy resource in the world has been becoming large and this trend will continue in the near future. Nevertheless, consumptions of fossil fuels should be decreased to achieve carbon neutral society until 2050. Under the circumstances, utilization of various biomass resources is gathering attention. Therefore, combustion behaviors of biomass resources need to be elucidated in detail for highly efficient use of them as an alternative to fossil fuels. The purpose of this study is to measure the combustion rate of biomass under isothermal conditions, which is close to the combustion conditions of an actual industrial furnace, and then to clarify the reaction kinetics dividing volatile emission and char combustion steps. The combustion behaviors of black pine pellets, which was a typical biomass fuel, were elucidated in the isothermal combustion experiment. A butch furnace equipped with an electronic balance was used to examine the effects of the experimental temperature and the oxygen concentration in the atmospheric gas. Furthermore, based on experimental results, kinetic analysis was performed to determine the appropriate model among Volumetric model, Shrinking core model, and Random pore model.