Experimental Characterization of Metallic Iron Oxidation
Résumé
Metallic iron is a candidate for future renewable energetic production, as an aero-space propellant [1]. Besides, the use of pure iron as a renewable energetic material, in the Direct Reduction Iron (DRI) process (sponge iron) [2] for sustainable steel production, in the production of hydrogen gas under mild hydrothermal conditions (200 – 300 °C, in the presence of carbon dioxide) [3], and for energy storage systems [4] has increased the need for the chemical and physical characterization of the oxidation of fine powders in oxidant environments. Nevertheless, few studies have addressed this complex, multiphase phenomenon, including the homogeneous and heterogeneous reactions of pure metallic, dust
particles in air. To this scope, cone calorimeter tests focusing on the quantification of the heat release rate and the overall reactivity were performed in this work.