51.石炭チャーのガス化速度に及ぼす雰囲気ガス及び灰分の影響

抄録

In this study, the effects of gasifying agent and mineral matter in the coal on the gasification rate of coal char at high temperature were examined. Rate of H_2O gasification was higher than that that of CO_2, gasification and both of gasification rates could be successfully expressed using Langmuir-type rate equations. Coal chars were also gasified in the mixture of H_2O and CO_2 and the gasification rate was almost the same as that observed in the mixture of H_2O and N_2. It was found that the cation in the coal has catalytic activity for the gasification, judging from the comparison of the gasification rates of chars prepared from raw and treated coals.