LDPE装置乙烯聚合及失控分解模型研究综述  

Review on Models of Ethylene Polymerization and Runaway Decomposition in LDPE Device

作　　者：张智琛 Zhang Zhichen(State Key Laboratory of Chemical Safety,Shandong,Qingdao,266104;SINOPEC Research Institute of Safety Engineering Co.,Ltd.,Shandong,Qingdao,266104)

机构地区：[1]化学品安全全国重点实验室,山东青岛266104 [2]中石化安全工程研究院有限公司,山东青岛266104

出　　处：《安全、健康和环境》2023年第10期61-69,共9页Safety Health & Environment

摘　　要：基于高压聚乙烯(LDPE)聚合条件苛刻,伴随着较大的失控分解和燃爆风险这一现状,对LDPE的聚合过程及失控分解模型进行了详细介绍,重点对乙烯分解综合模型、LDPE产品分子量分布模型、乙烯分解CFD模型的计算验证以及反应器内部热点的识别模型进行了探讨,并进行了总结和展望。模型研究加强了对LDPE合成过程中乙烯燃爆风险的边界分析,提高了局部热点预测能力和风险识别能力,为我国LDPE的工业安全生产提供借鉴。Based on the harsh polymerization conditions of high pressure polyethylene(LDPE)and the high risk of uncontrolled decomposition and explosion,the polymerization process and uncontrolled decomposition model of LDPE were introduced in detail.The comprehensive model of ethylene decomposition,the molecular weight distribution model of LDPE products,the calculation and verification of the CFD model of ethylene decomposition and the identification model of hot spots inside the reactor were discussed,and the prospects were summarized.The model study strengthens the boundary analysis of ethylene explosion risk during LDPE synthesis,improves the local hot spot prediction ability and risk identification ability,and provides reference for the industrial safety production of LDPE in China.

关 键 词：高压聚乙烯 乙烯聚合 CFD模型 局部热点 失控分解 

分 类 号：X937[环境科学与工程—安全科学]