含能材料2024，Vol.32Issue(3)：298-311,14.DOI:10.11943/CJEM2024018
基于临界半衰期的连续流反应热安全风险评估方法
Thermal Safety Risk Assessment Method Based on Critical Reaction Half-life for Continuous Flow Reactors
摘要
Abstract
To better evaluate the thermal safety risk of continuous flow reactions,a study was conducted using a tubular reactor as an example.By constructing a reaction system model based on heat balance and material balance,the actual heat transfer and thermal safety risk of continuous flow reaction systems were investigated.To address the adiabatic temperature rise reaction phenomenon at the inlet end of a channel reactor,a method based on the critical reaction half-life was proposed as a criterion for thermal safety assessment.Two major reaction conditions with high thermal safety risk were identified:when the total heat re-lease of the target reaction is greater than 800 J·g-1,and the reaction half-life of the reaction at the reaction temperature is less than the critical reaction half-life;when the total heat release of the decomposition reaction is greater than 800 J·g-1,and the re-action half-life of the target reaction at the reaction temperature is less than the critical reaction half-life,while the reaction half-life of the decomposition reaction at 100％MTSR(maximum temperature that the process reaction can reach)is also less than the critical reaction half-life.Furthermore,the accuracy and practicality were verified through the nitration reaction of chloro-benzene,and the results show that an explosively decomposition reaction could occur in the channel reactor under these condi-tions,thus confirming the high-risk thermal safety conditions of continuous flow reactions determined by this evaluation method.关键词
通道式反应器/传热速率/绝热温升反应/反应安全风险评估方法/分解爆炸事故Key words
channel reactor/heat transfer rate/adiabatic temperature rise reaction/reaction safety risk assessment method/decom-position explosion accident分类
军事科技引用本文复制引用
盛敏,田均均,王芳芳,李玮晔,吴展华..基于临界半衰期的连续流反应热安全风险评估方法[J].含能材料,2024,32(3):298-311,14.基金项目
国家重点研发计划资助(2023YFC3008700) （2023YFC3008700）
