CFD study of hydrogen injection through tuyeres into ironmaking blast furnaces

Hydrogen can be injected into blast furnaces (BFs) via tuyeres and fully replace pulverised coal injection (PCI) for lowering carbon emission, but hydrogen combustion in the raceway may affect raceway shape and size considerably. In this study, a three-dimensional (3D) transient CFD model is used for describing the complicated multiphase flow and thermochemical behaviours related to hydrogen combustion in the raceway of BFs, including the...