Runaway inhibition of styrene polymerization: A simulation study by chaos divergence theory

被引：0

作者：

Ni L. ^{[1
,2
,3
]}

Cui J. ^{[1
,2
,3
]}

Jiang J. ^{[1
,2
,3
]}

Pan Y. ^{[1
,2
,3
]}

Wu H. ^{[1
,2
,3
]}

Shu C.-M. ^{[3
,4
]}

Wang Z. ^{[1
,2
,3
]}

Mou S. ^{[3
,5
]}

Shi N. ^{[3
,5
]}

机构：

[1] College of Safety Science and Engineering, Nanjing Tech University, Nanjing, 211816, Jiangsu

[2] Jiangsu Key Laboratory of Hazardous Chemicals Safety and Control, Nanjing, 211816, Jiangsu

[3] School of Environment and Safety Engineering, Changzhou University, Changzhou, 213164, Jiangsu

[4] Center for Process Safety and Industrial Disaster Prevention, Department and Graduate School of Safety, Health, and Environmental Engineering, YunTech, Yunlin

[5] State Key Laboratory of Safety and Control for Chemicals, SINOPEC Research Institute of Safety Engineering, Qingdao

来源：

Process Safety and Environmental Protection | 2020年 / 135卷

基金：

中国国家自然科学基金;

关键词：

Automatic calorimeter; Critical point; Full-size model; Injection rate; Thermal risk;

D O I：

10.1016/j.psep.2020.01.015

中图分类号：

学科分类号：

摘要：

We attempted to prevent the thermal risk of a runaway reaction of polymerization in a batch reactor and to realize online monitoring and emergency inhibition of the thermal runaway behavior. Styrene thermal initiation of bulk polymerization was studied. A full-size model of the styrene polymerization reactor was constructed by referring to the reactor model of the Mettler Toledo automatic calorimeter, which was combined with the kinetic and thermodynamic models of styrene polymerization. The DIV thermal runaway critical criterion based on chaos divergence theory was used to judge the thermal runaway reaction. The critical point of the runaway reaction was determined and used to inhibit the thermal runaway of styrene polymerization by injecting cooling diluents at the liquid surface. The influence of injection rate (vc=0.5、0.8、1m/s), injection position (in-1、in-2、in-3), and amount of cooling diluents (no add、50 %、70 %、100 %) injected on the thermal runaway inhibition of the reaction was investigated and elucidated. The results indicated that a better inhibiting effect can be obtained by injecting the inhibitors at higher rates near the edge of the paddle blade. Moreover, appropriately increasing the injection amount of the inhibitors can achieve better inhibition of the runaway reaction. © 2020 Institution of Chemical Engineers

引用

页码：294 / 300

页数：6

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