1. Zhejiang Provincial Key Laboratory of Advanced Chemical Engineering Manufacture Technology, College of Chemical and Biological Engineering, Zhejiang University, Hangzhou 310029, China;
2. Institute of Zhejiang University-Quzhou, Quzhou 324000, China
Abstract Bi2MoO6 nano sheet catalyst was prepared by hydrothermal method and BiMoV0.15 catalyst was prepared by coprecipitation method. And the intrinsic kinetics was studied for oxidative dehydrogenation of 1-butene to 1,3-butadiene over Bi2MoO6 nanosheet and BiMoV0.15 catalysts in a fixed-bed reactor. The power-law model was used to fit the experimental data, and the model parameters were fitted by non-linear regression. Results showed the existence of two reaction temperature-dependent kinetic regimes for we found that there was a break in the activation energy around 653 K. And regardless of the temperature range, the activation energy of the Bi2MoO6 nanosheet catalyst was lower than that of the BiMoV0.15 catalyst, indicating that the Bi2MoO6 nanosheet catalyst could effectively reduce the reaction energy barrier and make the reactants easier to react with each other.. The statistical test results showed that the models were able to describe the oxidative dehydrogenation process adequately for the respective temperature regimes. Meanwhile, a series of mechanism-based derivations were made, revealing the relationship between the reaction order and oxygen coverage on the catalyst surface.
LAO Jiazheng1,CHONG Mingben2,CHENG Dangguo1 et al. Kinetic Modeling for Oxidative Dehydrogenation of 1-Butene to 1,3-Butadiene over Bi2MoO6 Nanosheet and BiMoV0.15 Catalysts[J]. Chemical Reaction Engineering and Technology, 2021, 37(4): 318-328.
LAO Jiazheng1,CHONG Mingben2,CHENG Dangguo1 et al. Kinetic Modeling for Oxidative Dehydrogenation of 1-Butene to 1,3-Butadiene over Bi2MoO6 Nanosheet and BiMoV0.15 Catalysts[J]. Chemical Reaction Engineering and Technology, 2021, 37(4): 318-328.
