Gas-solid reduction kinetic model of MgO-fluxed pellets
来源期刊：International Journal of Minerals Metallurgy and Materials2014年第1期
论文作者：Qiang-jian Gao Feng-man Shen Xin Jiang Guo Wei Hai-yan Zheng
文章页码：12 - 17
摘 要：The reduction process of MgO-fluxed pellets was investigated and compared with traditional acidic pellets in this paper.Based on the piston flow concept and experimental data,a kinetic model fitting for the gas-solid phase reduction of pellets in tubular reactors（blast furnace,BF） was built up,and the equations of reduction reaction rate were given for pellets.A series of reduction experiments of pellets were carried out to verify the model.As a result,the experimental data and calculated result were fitted well.Therefore,this model can well describe the gas-solid phase reduction process and calculate the reduction reaction rate of pellets.Besides,it can give a better explanation that the reduction reaction rate（reducibility） of MgO-fluxed pellets is better than that of traditional acidic pellets in BF.
Qiang-jian Gao，Feng-man Shen，Xin Jiang，Guo Wei，Hai-yan Zheng
School of Materials and Metallurgy,Northeastern University
摘 要：The reduction process of MgO-fluxed pellets was investigated and compared with traditional acidic pellets in this paper.Based on the piston flow concept and experimental data,a kinetic model fitting for the gas-solid phase reduction of pellets in tubular reactors（blast furnace,BF） was built up,and the equations of reduction reaction rate were given for pellets.A series of reduction experiments of pellets were carried out to verify the model.As a result,the experimental data and calculated result were fitted well.Therefore,this model can well describe the gas-solid phase reduction process and calculate the reduction reaction rate of pellets.Besides,it can give a better explanation that the reduction reaction rate（reducibility） of MgO-fluxed pellets is better than that of traditional acidic pellets in BF.
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