用同位素交换技术研究了CO2-CO与铁氧化物体系的反应。考察了反应速率常数随反应气体流量的变化,介绍了处理同位素交换法所获得数据的两种方法:方法1从反应界面CO2分解反应的角度计算反应速率常数;方法2从反应界面CO生成反应的角度计算反应速率常数。根据对试验所测数据的计算,比较和分析了两种计算方法的不同,并对方法1进行了修正,得到了和方法2完全一致的计算结果。
Isotope exchange technique was used to study the reaction between CO2-CO and iron oxides system, the effect of the gas flow rate on the reaction rate constant was investigated, two methods that analysis the dates obtained by isotope exchange technique were introduced: The first way is to calculate reaction rate constant based on the CO2 dissociation reaction on the interface, and the second way is to calculate reaction rate constant based on the CO formation reaction on the interface. On the basis of the comparison of the calculated results, the different of two calculation ways was analyzed, and the first way was modified with the consistent results obtained by the second way.
参考文献
[1] | |
[2] | Cramb A W, Graham W R and Belton G R. .The interfacial kinetics of the reaction of CO2 with nickel Part I: The 14CO2-CO exchange reaction and the influence of sulful[J].Metall Trans B,1978,9(6):623-[2]Cramb A W, Belton G R.Studies of the interfacial kinetics of the reaction of CO2 with liquid iron by the14CO2-CO isotope exchange reaction[J].Metall Trans B,1981,12(4):699-[3]Sasaki Y, Hara S, Gaskell D R, et al.Isotope exchange studies of the rate of dissociation on liquid iron oxides and CaO-saturated calcium ferrites[J].Metall Trans B,1984,15(3):563-[4]Cramb A W, Belton G R.The interfacial kinetics of the reaction of CO2 with liquid nickel[J].Metall Trans B,1984,15(4):655-[5]EL-Rahaiby S K, Sasaki Y, Gaskell D R, et al.Interfacial rates of reaction of CO2 with liquid iron silicates, silica-saturated manganese silicates, and some calcium iron silicates[J].Metall Trans B,1986,17(2):307-[6]Fruehan R J, Antolin S.A study of the reaction of CO on liquid iron alloys[J].Metall Trans B,1987,18(2):415-[7]Sun S, Sasaki Y, Belton G R.On the interfacial rate of reaction of CO2 with a calcium ferrite melt[J].Metall Trans B,1988,19(6):959-[8]Cramb A W, Belton G R.Studies of the interfacial kinetics of the reaction of CO2 with liquid iron-nickel alloys at 1873K[J].Metall Trans B,1989,20(5):755-[9]Mori M, Morita K, Sano N.Determination the rate of CO2 dissociation on the surface of CaO-SiO2, CaO-Al2O3, CaO-SiO2-CaF2, and CaO-SiO2-FexO melts[J].ISIJ Inter,1996,36(6):624-[10]Sun S, Belton G R.The effect of surfactants on the interfacial rates of reaction of CO2 and CO with liquid iron oxide[J].Metall. Mater. Trans. B,1998,29(1):137-[11]Sasaki Y, Ishii K.The interfacial reaction of CO with liquid iron by 13C18O-12C16O isotope exchange reaction[J].ISIJ Inter,2004,44(2):439-[12]Barati M, Coley K S.Kinetics of CO2-CO reaction with CaO-SiO-FeOx melts[J].Metall. Mater. Trans. B,2005,36(2):169-[13]Matsuura H, Ishida I, Tsukihashi F.Effect of P2O5 addition on the rate of CO2 dissociation on the surface of FeOt-base molten oxides[J].ISIJ Inter,2005,44(9):1494-[14]Matsuura H, Tsukihashi F.Surface active effect of Na2O on the rate of CO2 dissociation on the surface of molten FeOx-Na2O and FeOx-SiO2-Na2O systems[J].ISIJ Inter,2005,45(7):1035-[15]Barati M, Chen E, Coley K.A comparison of the kinetics of the CO2-CO reaction with steelmaking and copper making slags [C]. [J].VII International Conference on Molten Slags Fluxes and Salts .The South African Institute of Mining and Metallurgy,2004,:393-[16]Barati M, Coley K S.A comprehensive kinetic model for the CO2-CO reaction with iron oxide containing slag[J].Metall. Mater. Trans. B,2006,37(1):61-[17]Hu X J, Matsuura H, Tsukihashi F.Interfacial reaction between CO2-CO gas and molten iron oxide containing P2O5[J].Metall. Mater. Trans. B,2006,37(3):395-[18]胡晓军.13CO2-CO同位素交换技术研究含铁氧化物熔渣表面CO2分解反应的动力学[J].中国稀土学报,2006,24(S):151-[19]Worral E J, Coley K S.Kinetics of the reaction of CO2/CO gas mixtures with iron oxide[J].Metall. Mater. Trans. B,2010,41(4):813- |
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