抄録
We examined the influence of carbonaceous structural change and ash behavior affecting reactivity. We developed a novel analysis method using LRS (Laser Raman Spectroscopy) and EDX (Energy Dispersive X-ray diffraction) for this examination. From these observations, Si and Al existence accorded with the rate of non-graphitic carbon at higher conversion of carbonaceous material. On the other hand, our previous results have shown that the ratio of graphitic carbon increases regardless of ash as gasification reactions proceed. Based on these results we inferred that Si and Al existence suppressed char conversion, so the reaction gas was unable to contact with the carbon. The effect of Fe for catalyst was also investigated and it showed catalytic activity for gasification in some cases.
