Abstract
CO2 emissions from ironmaking processes should be reduced to avoid global warming. One promising solution is the effective utilization of organic waste materials in ironmaking processes. In this study, fundamental research on the application of organic waste materials, carbonized municipal waste (CMW) and carbonized woody biomass (CWB), as reducing agents was conducted experimentally to make metal iron from iron oxide. In the reduction experiments of the mixture of iron oxide (Fe2O3) with reducing agents (CMW, CWB, coal and graphite), metal iron was obtained with CMW and CWB. This is because the reactivity of fixed carbon in CMW and CWB is higher than that in coal and graphite. As a result, CMW and CWB are usable as reducing agents to make reduced iron.