Ru-La_2O_3/Al_2O_3催化剂上CO选择氧化本征反应动力学  

On the Intrinsic Reaction Kinetics of Selective Oxidation of CO on Ru-La_2O_3/Al_2O_3 Catalyst Bed

作　　者：陈喜蓉[1] 陈早明[2] 余长林[1] 

机构地区：[1]江西理工大学材料与化学工程学院,江西赣州341000 [2]江西理工大学工程研究院,江西赣州341000

出　　处：《有色金属科学与工程》2011年第1期28-31,共4页Nonferrous Metals Science and Engineering

基　　金：江西理工大学博士启动基金资助项目(09033)

摘　　要：采用浸渍法制备了用于CO选择氧化的Ru-La2O3/Al2O3催化剂,研究了CO在Ru-La2O3/Al2O3催化剂床层上的CO选择氧化本征动力学.结果表明,在消除内外扩散的条件下,CO在Ru-La2O3/Al2O3催化剂床层的本征反应是一个表面反应控制的一级反应,反应的活化能为76.24kJ/mol.Ru-La2O3/ Al2O3catalyst for the CO removal via selective catalytic oxidation was prepared by means of impregnation,and the corresponding intrinsic reaction kinetics was investigated.Experimental results show that the surface reaction on the catalyst bed plays the most important role in the control of reaction rate,and that,when eliminating the internal and external diffusion,the catalytic oxidation of CO on the catalyst bed is a first-order reaction with an activation energy of 76.24kJ/mol.

关 键 词：钌催化剂 一氧化碳 选择氧化 本征反应动力学 

分 类 号：TF111.31[冶金工程—冶金物理化学] O643.3[理学—物理化学]