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A Study on Complex Network Reaction Kinetics of Hydroisomerization of C_8-Aromatics

Dai Xing and Shi Yajun (East China Institute of Chemical Technology, Shanghai)   

  • Online:1989-06-25 Published:1989-06-25

八碳芳烃临氢异构化反应网络的动力学研究

戴星,施亚钧   

  1. 华东化工学院化学工程研究所,华东化工学院化学工程研究所 上海 ,上海

Abstract: A new complex reaction network has been proposed for the hydroisome-rization of C8-aromatics, in which three xylene isomers, ethylbenzene and a lumped component C8-cycloparaffins are present in the reaction system with the products from all irreversible reactions lumped into one pseudo component. The kinetic model of Hougen-Watson hyperbolic type is used to describe the complex reaction network. Experiments were conducted in a flow-type mini-reactor with on-line GC analyzer. The catalyst used is ot Pt/Zeolite type (SKI-300). Measurements were made at an approximately constant activity and selectivity level of the catalyst A trial and error matrix method was used to solve the hyperbolic kinetic problem. The parameters of the model and the activation energies and trequency tactors were obtained from the experimental data.

摘要: 本文研究了一个更具普遍性的五元M~a(?)拟一级的八碳芳烃临氢异构化反应网络,并应用作者提出的试差矩阵法研究了该反应网络的双曲型动力学模型,求取了各模型参数及其表观活化能和指前因子.拟合结果与实验测定值相当吻合.