1-01　Pulverization behaviors during gasification reaction of coke at high temperatures

Abstract

In response to the need for a low-carbon society, the steel manufacturing industry, which is a major producer of carbon dioxide, has introduced hydrogen to replace some fossil fuels. Since the degradation behavior of coke is one of the factors that deteriorate the efficiency of the blast furnace, it is important to understand the degradation behavior of coke during the H₂O gasification process at hydrogen enriched blast furnace. In this study, to find the effect of temperature on degradation behavior between CO₂ gasification and H₂O gasification, gasification experiments were conducted in CO₂ and H₂O atmospheres at different temperatures in 20% conversion ratio. Moreover, to investigate the pore behavior, we used the SEM to observe the cross-section of cokes.