Isothermal Reduction Kinetics of CaO-2Fe_2O_3 by Thermogravimetric Analysis

摘要

Isothermal reduction kinetics of CF_2 by 30% CO and 70% N_2 at 1123, 1173 and 1223 K was investigated by TGA in this study. The reduction rate analysis indicated that reduction of CF_2 comprises three stages during the whole reduction process, Apparent activation energy of samples CF_2 reduction is 34.37 kJ/mol. The In-In analysis implied the reduction of CF_2 was expressed initially by a 2D subsequently by 3D shrinking layer reaction.