LowCarbon Production of Iron Steel: Technology Options
WEBMar 8, 2021 · In a gasbased DRI production process, up to 30% natural gas can be substituted by hydrogen directly without changing the process [(Midrex H2, 2020)]. Preheating and other pretreatment of injected hydrogen might be needed depending on hydrogen quality and quantity [(Vogl et al., 2018)]. ... or 380 kWh/t production for coal .