Speaker
Description
HIsarna ironmaking is a breakthrough smelting reduction technology with the potential to reduce CO₂ emissions by about 50% when operated with coal. However, further decarbonisation of the process requires replacing fossil carbon with carbon neutral alternatives like biochar. This study evaluates biochar production integration to the HIsarna pro-cess operations from the perspective of raw material consumption, unit wise energy requirements, and by-product utili-sation using a flowsheet modelling approach. The model demonstrates a strong thermal synergy between the ironmak-ing and pyrolysis processes, with HIsarna off-gas heat recovery and recycled pyrogas collectively satisfying the thermal demand of continuous slow pyrolysis process. The economic evaluation shows that the integrated system is profitable and the profitability structurally governed by co-product markets particularly CO₂ credits and bio-oil sales rather than biochar value itself.
| Speaker Company/University | TU Delft |
|---|---|
| Speaker Country | Netherlands |