2-22　数値シミュレーションによる石炭ガス化炉内のスート生成量評価

抄録

Integrated coal gasification combined cycle (IGCC) has high thermal efficiency and can make a significant contribution to reduce CO₂ emissions. Among them, Oxy-fuel IGCC with CO₂ capture, which is currently under development, can dramatically reduce CO₂ emissions with keeping high thermal efficiency. One of the main components in IGCC is a coal gasifier, and it is important to gasify solid carbon resources efficiently in a gasifier. Especially, since soot is less reactive than char, prediction of its production is important for accurate prediction of the gasifier performance. In order to predict the amount of soot production, a numerical analysis combined with a reduced chemical mechanism and CFD was performed for a gasifier. As a result, the prospect that the soot formation in a gasifier can be predicted by numerical analysis can be obtained.