8th International Congress on Science and Technology of Ironmaking - ICSTI 2018

Substitution of pulverized coal injection by solid biocarbon fuel has the potential to achieve substantial reduction in GHG emissions from blast furnace ironmaking. A techno-economic model was developed to evaluate the value-in-use of solid biocarbon to facilitate the selection of solid biocarbon for replacement of pulverized coal injection. The value-in-use of solid biocarbon is strongly influenced by its O/C mass ratio as it dictates the cost of raw materials required to support the blast furnace ironmaking process and potential GHG emissions achievable. The major barrier to industrial-scale implementation is the insufficient solid biocarbon production capacity needed to meet the high demand of the industrial steel sector. In order to overcome this challenge, the entire supply chain of suitable biocarbon needs to be developed and expanded.