文献类型：期刊文献

中文题名：2,3-二氯吡啶催化加氢动力学研究

英文题名：Catalytic hydrogenation kinetics of 2,3-dichloropyridine

作者：张爱铭[1];胡总[2,3];许海涛[1]

机构：[1]华东理工大学化工学院,上海200237;[2]上海华谊(集团)公司技术中心,上海200241;[3]上海计算化学与化工工程技术研究中心,上海200241

年份：2024

卷号：53

期号：1

起止页码：108

中文期刊名：应用化工

外文期刊名：Applied Chemical Industry

收录：CSTPCD;;北大核心:【北大核心2023】；CSCD:【CSCD_E2023_2024】；

基金：上海市科委启明星B类基金(21QB1402400)。

语种：中文

中文关键词：氯化吡啶;催化加氢;反应级数;活化能;动力学

外文关键词：2,3-dichloropyridine;catalytic hydrogenation;reaction order;activation energy;equation of dynamics

摘要：采用液相还原法制备了Pd/C催化剂,在压力0.6 MPa、温度303~323 K、转速800 r/min的条件下应用于2,3-二氯吡啶催化加氢反应动力学研究,建立了动力学反应模型,对动力学参数进行了估值。其中3-氯吡啶催化加氢反应为2.1级反应,反应速度方程为:r=1.18×10^(8)×M cat×e-5375.7/T C^(2.1)_(3cp),活化能44.14 kJ/mol,2-氯吡啶催化加氢反应为1级反应,反应速率方程为:r=4.696×10^(11)×M cat×e-8693.3/T C_(2cp),活化能72.28 kJ/mol,2,3-二氯吡啶催化剂加氢反应为3级反应,反应速度方程为:r=2.05×10^(15)×M cat×e-9758.6/T C^(3)_(2.3),活化能81.13 kJ/mol。
The Pd/C catalyst was prepared by liquid phase reduction method and applied to the catalytic hydrogenation kinetics of 2,3-dichloropyridine under the conditions of pressure 0.6 MPa,temperature range 303~323 K and rotation speed 800 r/min.The kinetic reaction model was established and the kinetic parameters were estimated.Comparing the obtained empirical equation with the actual reaction rate,the results show that the reliability of the kinetic model is good.Among them,the catalytic hydrogenation of 3-chloropyridine is a 2.1 order reaction,and the reaction rate equation is as follows:r=1.18×10^(8)×M cat×e-5375.7/T C^(2.1)_(3cp)activation energy of 44.14 kJ/mol,2-chloropyridine catalytic hydrogenation reaction for level 1,reaction rate equation is r=4.696×10^(11)×M cat×e-8693.3/T C_(2cp),activation energy of 72.28 kJ/mol,2,3-dichloropyridine as catalyst hydrogenation reaction for level 3,reaction rate equation is r=2.05×10^(15)×M cat×e-9758.6/T C^(3)_(2.3)activation energy of 81.13 kJ/mol.