全活性Mo-V-Nb催化剂上乙烷氧化脱氢反应的动力学(Ⅱ)——反应机理的提出和动力学参数的估算

Study of the Kinetics of the Oxydehydrogenation of Ethane to Ethylene Over the Unsupported Mo-V-Nb Catalyst (Ⅱ)——Mechanism and Kinetics Parameters

在考查了乙烷氧化脱氢反应过程中各物种吸脱附行为的基础上 ,提出了乙烷氧化脱氢反应的机理 ,并采用Treanor DFP法进行数据处理 ,求取了各基元步骤的速率常数、活化能和指前因子等动力学参数 ;

On the basis of studing the adsorption behaviors of every species,the reaction mechanism of the oxydehydrogenation of ethane to ethylene is suggested.A series of kinetics parameters,such as the rate constants,the activation energies,the frequency factors and etc.,are obtained by Treanor-DFP method.The computed values are coincided with the experimental one.