1-02　流動層におけるOxy石炭燃焼挙動の解明

抄録

Oxy-Fuel combustion is one of the techniques to achieve carbon dioxide capture and storage (CCS). Meanwhile, fluidized bed combustion has the advantage of increasing combustion efficiency due to particle flow. Oxy-fuel coal combustion in a fluidized bed is a relatively new study, so the combustion behavior remains unclear. In this study, we investigated Oxy-fuel coal combustion behavior by comparing three combustion atmospheres, air, CO₂-O₂ and Oxy-Fuel using bubbling fluidized bed reactor. Especially in this research, we focused on the production of SOx, and in Oxy-fuel combustion, the concentration of SO₂ increased due to the effect of recirculation. Regarding SO₃ generation in Oxy-fuel combustion, the concentration became high due to the influence of SO₂ circulation and H₂O circulation.