Biocarbon Suitability Evaluation for Direct Injection in Blast Furnace Ironmaking

This study evaluates the feasibility of substituting pulverized coal with solid biocarbon for direct injection in blast furnace ironmaking, aiming to reduce greenhouse gas (GHG) emissions. A commercial biocarbon sample is systematically assessed for its physical, chemical, and grindability characteristics across varying substitution levels. Combustion performance is quantified using the CanmetENERGY‐Ottawa injection rig, revealing that biocarbon incorporation enhances injectant burnout. Analysis of combustion residues indicate favorable reactivity and carbon structure, supporting its suitability for blast furnace conditions. Heat and mass balance modeling further demonstrates that up to 27% GHG emission reduction can be achieved without compromising furnace operation, confirming biocarbon's potential as a viable low‐carbon alternative in ironmaking.