Blast Furnace Dynamics

The blast furnace process relies heavily on coal, which plays a dual role by both providing heat and facilitating chemical reactions that produce CO2. While coal’s solid form allows for mechanical control within the furnace, alternatives like natural gas can only partially substitute for its functions. The discussion also highlights the significance of the blast furnace in steel production, accounting for around 90% of new steel, and sets the stage for exploring decarbonization pathways like hydrogen in the DRI process.