中国安全科学学报 ›› 2017, Vol. 27 ›› Issue (5): 117-121.doi: 10.16265/j.cnki.issn1003-3033.2017.05.021

• 安全工程技术科学 • 上一篇    下一篇

间歇式反应系统参数敏感性与热失控临界判据

江佳佳1,2 讲师, 杨建洲1,2, 蒋军成1,2 教授, 潘勇1,2 副教授, 顾伟1,2   

  1. 1 南京工业大学 安全科学与工程学院,江苏 南京 210009;
    2 江苏省危险化学品本质安全与控制技术重点实验室,江苏 南京 210009
  • 收稿日期:2017-03-02 修回日期:2017-04-26 出版日期:2017-05-20
  • 作者简介:江佳佳 (1985—),男,湖南常德人,博士,讲师,主要从事化工过程安全研究。E-mail:jiajiajiang@njtech.edu.cn。
  • 基金资助:
    国家自然科学基金资助(21436006);江苏省自然科学基金资助(BK20141457, BK20150953);江苏省高校自然科学基金资助(15KJB620002)。

Parameter sensitivity and critical criterion thermal runaway of batch reaction system

JIANG Jiajia1,2, YANG Jianzhou1,2, JIANG Juncheng1,2, PAN Yong1,2, GU Wei1,2   

  1. 1 College of Safety Science and Engineering, Nanjing Tech University, Nanjing Jiangsu 210009, China;
    2 Jiangsu Key Laboratory of Hazardous Chemicals Safety and Control, Nanjing Jiangsu 210009, China
  • Received:2017-03-02 Revised:2017-04-26 Published:2017-05-20

摘要: 为进一步验证间歇式反应系统的参数敏感性,预测热失控临界值,以硫酸催化乙酸酐水解反应作为研究对象,考察不同反应初始温度及反应初始浓度下反应温度的变化特性。采用基于雅克比矩阵迹的热失控临界判据,模拟计算硫酸催化乙酸酐水解反应系统参数敏感临界值。结果表明:反应温度对反应初始温度和初始浓度都有参数敏感性,当初始温度和初始浓度位于参数敏感临界值附近时,其微小变化将会引起温度急剧变化;用基于雅克比矩阵迹的判据预测反应系统热失控临界参数,临界判据计算的临界值与试验结果能很好地吻合。

关键词: 间歇式, 反应系统, 热失控, 参数敏感性, 临界判据

Abstract: Batch reaction systems are a nonlinear dynamic system that exhibits parametric sensitivity within a certain operating range. Experiments were carried out on hydrolysis reaction of acetic anhydride with a catalyst of sulfuric acid to study the parameter sensitivity of the batch reaction system under different initial temperature and initial concentration conditions. The critical parameters of the batch reaction system were simulated according to the critical criterion based on traces of Jacobian matrix. The research results show that the small changes in the parameter value will cause drastic changes of temperature when the operating parameters approach the critical value, and that the critical criterion based on traces of Jacobian matrix can accurately predict the critical parameters of the thermal runaway system, the simulation results are in good agreement with the experimental data.

Key words: batchwise, reaction system, parametric sensitivity, thermal runaway, critical criterion

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