Microstructural characterization and gas-solid reduction kinetics of iron ore fines at high temperature

Reduction kinetics of combusted iron powder using hydrogen

“…They suggested that the sharp decrease was due to solid state diffusion becoming the limiting factor. Their suggestion agrees with the model of Qu et al [46], in which solid state diffusion of oxygen becomes rate-limiting in the later stage of the reduction.…”

Numerical Analysis of the Dust Control Performance of a Counter-current Swirling Configuration in the Flash Ironmaking Reactor

“…The particle morphologies in the similar studies are also referred. 24,25,30,31) The significant slag-iron stratification also makes it easy to judge the reduction process of single particles. Therefore, we proposed a rough framework for the further mathematical modeling.…”

“…Summary of morphology and experimental conditions. 24,25,28,30,31) Forms Description Conditions Typical particles Un-melted…”

Towards more efficient control of the ironmaking blast furnace: modelling gaseous reduction of iron ores in H2-N2 atmosphere

“…There are various gas-solid systems in metals and materials processing industries, and gaseous reduction of iron ores has been paid extensive attention over the years, leading to numerous publications reporting experimental results and mathematical models [2][3][4][5][6][7]. In the field of ironmaking, the most frequently adopted mathematical models are the unreacted shrinking core model (USCM) and its refined variant, e.g., the grain model [8].…”