Investigation of Alternative Reducing Agent Injection into the Raceway of Blast Furnaces using CFD

CFD-models have been developed, implemented and validated to study the injection of plastics and heavy oil into the blast furnace raceway. Separate sets of conservation equations are solved for solid and gas phases, accounting also for heterogeneous transport phenomena. The model predictions deliver detailed insight to local conditions in the blast furnace and will be used for the optimisation of operating conditions, also aiming at further improvement of plant efficiency and economics.