Abstract
Reduction experiments of hematite pellets with CO or CO-CO2 gas mixtures were carried out under Various experimental conditions. The hematite pellets were made of pyrite cinder and the porosity was approximately 13%.Observed reduction curves were simulated by the multi-interface model where rate parameters obtained by the technique of step-wise reduction of the pellets were used. Agreement between the calculated curves and observed data was satisfactory for the wide variety of experimental conditions as to reduction temperature (800-1000°C), gas composition (p (b) CO=0.47-1.0atm), gas flow rate (Q=0.5-3.6Nl/min), and pellet radius (r0=0.52-0.78cm).
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