Kinetic study on the reaction between CO_2-CO and wustite using the isotope exchange method  

作　　者：Teng Zhang Xiao-jun Hu Kuo-Chih Chou 

机构地区：[1]State Key Laboratory of Advanced Metallurgy,University of Science and Technology Beijing [2]School of Metallurgical and Ecological Engineering,University of Science and Technology Beijing

出　　处：《International Journal of Minerals,Metallurgy and Materials》2013年第2期125-130,共6页矿物冶金与材料学报（英文版）

基　　金：supported by the National Natural Science Foundation of China (Nos. 50874128 and 50834007)

摘　　要：To investigate the reaction between CO2-CO and wustite using the isotope exchange method at 1073, 1173, 1273, and 1373 K, the experiment apparatus was designed to simulate the fluidized bed. The chemical rate constant was estimated by considering the effect of gas phase mass transfer on the reaction. It is found that the chemical rate constant is inversely decreased with the increase in the ratio of CO2/CO by volume. The activation energy of reaction is in a linear relationship with the ratio of COs/CO by volume, and the average activation energy is 155.37 kJ/mol.To investigate the reaction between CO2-CO and wustite using the isotope exchange method at 1073, 1173, 1273, and 1373 K, the experiment apparatus was designed to simulate the fluidized bed. The chemical rate constant was estimated by considering the effect of gas phase mass transfer on the reaction. It is found that the chemical rate constant is inversely decreased with the increase in the ratio of CO2/CO by volume. The activation energy of reaction is in a linear relationship with the ratio of COs/CO by volume, and the average activation energy is 155.37 kJ/mol.

关 键 词：KINETICS isotope exchange rate constants WUSTITE activation energy 

分 类 号：O643.1[理学—物理化学] O613.71[理学—化学]