铁钼法甲醇制甲醛催化动力学研究及反应器模拟  

Kinetic study and reactor simulation of methanol to formaldehyde over Fe-Mo catalysts

作　　者：邵青楠 迟子怡 李学刚[1] 肖文德[1] SHAO Qing-nan;CHI Zi-yi;LI Xue-gang;XIAO Wen-de(School of Chemistry and Chemical Engineering,Shanghai Jiao Tong University,Shanghai 200240,China)

机构地区：[1]上海交通大学化学化工学院,上海200240

出　　处：《天然气化工—C1化学与化工》2021年第5期121-128,共8页Natural Gas Chemical Industry

摘　　要：铁钼催化剂催化氧化甲醇制甲醛具有反应温度低和选择性高的特点,可靠的动力学模型是反应器设计和优化控制的基础。采用工业铁钼催化剂,在消除内外扩散影响后测定了动力学数据,建立了主、副反应的动力学模型,统计检验表明所建模型是可信的。进一步建立了列管式反应器的二维拟均相模型,使用COMSOL Multiphysics软件进行了反应器模拟,考察了进料甲醇含量(物质的量分数)、温度、空速和压力等工艺条件对反应器性能的影响,所得结果可为工业反应器的设计优化提供依据。The Fe-Mo catalyst catalyzes the oxidation of methanol to formaldehyde has the characteristics of low reaction temperature and high selectivity,and a reliable kinetic model is the basis for reactor design and optimal control.Using industrial Fe-Mo catalyst,the kinetic data was measured after eliminating the influence of internal and external diffusion,and the kinetic models of main and side reactions were established.The statistical tests show that the models are credible.A two-dimensional pseudo-homogeneous model of the tubular reactor was further established,the reactor was simulated using COMSOL Multiphysics,and the influences of process conditions such as methanol(mole fraction)in feed,temperature,space velocity and pressure on the performance of the reactor were investigated.This work can provide a basis for the design and optimization of industrial reactor.

关 键 词：甲醇氧化 甲醛 铁钼催化剂 动力学 固定床反应器 

分 类 号：TQ224.1[化学工程—有机化工]