Study on Carbonation Reaction Kinetics of Ferrous Dust
SHI Yan LIU Wen-hui HU Chang-qing
College of Material and Metallurgy, Northeastern University Hebei Key Laboratory of Modern Metallurgy Technology, Hebei United University Hebei Key Laboratory of Modern Metallurgy Technology, Hebei United University
Abstract：The carbonation reaction kinetics of ferrous dust was studied using thermal experiment for carbonate pellets. The un-reacted shrinking core model for carbonation reaction was set. The influence of reaction temperature on reaction kinetics parameters in the reaction control stage was analyzed. The results showed that raising reaction temperature was beneficial to transformation of carbonation pellets. While the temperature rising from 400℃ to 600℃, the conversion rate of CaO increased obviously, and reached the highest at 800℃. The total rate of carbonation reaction was controlled by internal diffusion and interfacial chemical reaction together. The reaction was controlled by chemical reaction in the initial reaction stage, the reaction rate was faster. Then the reaction was controlled by internal diffusion, the rate slowed down. At the temperatures of 200~800℃, its activation energy was 11.09 kJ/mol.
石焱 刘文会 胡长庆. 含铁粉尘碳酸化反应动力学研究[J]. , 2013, 13(1): 83-87.
SHI Yan LIU Wen-hui HU Chang-qing. Study on Carbonation Reaction Kinetics of Ferrous Dust. , 2013, 13(1): 83-87.
2013, Vol. 13 
