界面非平衡氧传递过程动力学的解析  

KINETIC ANALYSIS ON NON-EQUILIBRIUM PROCESS OF OXYGEN TRANSFER AT INTERFACE

作　　者：胡晓军[1] 松浦宏行[2] 月桥文孝 周国治[1] 

机构地区：[1]北京科技大学理化系,北京100083 [2]东京大学大学院新领域刨成科学研究科

出　　处：《金属学报》2007年第8期829-833,共5页Acta Metallurgica Sinica

基　　金：国家自然科学基金委员会;上海宝钢集团公司"钢铁联合研究基金"项目50104002;日本学术振兴会项目资助

摘　　要：将氧通过界面反应在两相间的传递过程简化为界面化学反应和扩散传质两个步骤,对此过程的动力学进行了数学解析.得到了一个新的动力学模型.同时显示,反应过程中界面氧浓度随反应过程的进行不断发生变化,这表明该界面反应是一个非平衡过程.应用得到的动力学模型对几个体系的动力学实验数据进行了拟合,符合很好,根据拟合的参数可以很好地解释实验现象.初步讨论了模型参数的意义和对动力学过程的影响.Divided into two steps of a chemicai reaction and a mass transfer process, the interfaciai kinetics of oxygen transfer between two phases has been resolved mathematically, and a kinetic model has also been obtained. It was shown that the interfaciai concentration of oxygen is varied with the process, so the oxygen transfer can be considered as a non-equilibrium process. By this model, the experimental data of some systems had been fitted. The results show that it is in good accordance with the experimental data and that the obtained parameters can explain the experimental phenomena well. In addition, the preliminary discussion on the meaning of parameters and their effect on the kinetics had been made.

关 键 词：界面过程 氧传递 非平衡 动力学 

分 类 号：TF01[冶金工程—冶金物理化学] O643.12[理学—物理化学]