Abstract
It is important for environmental protection to use waste materials effectively. In this work, we conducted fundamental researches on the application of carbonaceous materials from waste as a reductant for iron oxide. Carbonaceous materials from waste (carbonized municipal waste, carbonized biomass, canbonized sewage sludge) were mixtured with hematite reagent The mixtures were heated up at the temperatures of 1000-1200℃ in N_2 gas by using thermo gravimetric analysis (TG) or batch furnace. In the reduction experiments, weight changes and concentrations of generated gases from samples were measured by electric balance and micro gas chromatograph, respectively. Weight changes ratio was calculated to compare reaction rate and reactive character.
