3. The interaction of carbon with mixtures of Iron compounds and mineral matters during pyrolysis/gasification at high temperature

Abstract

Reactions between coal char and mineral matters such as pyrite. quartz. alumina and kaolinite were investigated by heating up to 1600℃ in Ar atmosphere. by using thermo gravimetric analysis combined with off-gas analysis. Addition of pyrite and iron oxide affected the reactions of char/quartz and char/kaolinite and the carbothermal reaction initiated at about 1150℃ that was lower than those for quartz/char mixture by about 150℃ and for kaolinite/char mixture by about 100℃. respectively. Carbothermal reaction was occurred. not only the case of slow heating but in rapid heating.