Aspherix® and CFDEM®coupling allow for the high-fidelity simulation of multi-phase thermochemical processes, seamlessly integrating fluid dynamics, particle motion, and chemical kinetics. By capturing the intricate interplay of gas-phase hydrogen fluidization, heat transfer, and heterogenous chemical reactions, the software creates a predictive digital twin of the reduction furnace. This integrated workflow enables engineers to precisely evaluate the initial stages of hematite reduction, optimize gas consumption, and minimize trial-and-error prototyping, ultimately accelerating the scale-up of sustainable steelmaking technologies.