中国安全科学学报 ›› 2017, Vol. 27 ›› Issue (8): 79-84.doi: 10.16265/j.cnki.issn1003-3033.2017.08.014

• 安全工程技术科学 • 上一篇    下一篇

芳烃装置歧化单元苯泄漏及暴露风险模拟研究

于靓1, 沈晓波2 讲师, 杨明磊1 讲师, 修光利2 教授, 钱锋1 教授, 王基铭**3 教授   

  1. 1 华东理工大学 化工过程先进控制和优化技术教育部重点实验室,上海 200237;
    2 华东理工大学 资源与环境工程学院,上海 200237;
    3 华东理工大学 化工学院, 上海 200237
  • 收稿日期:2017-04-01 修回日期:2017-06-09 出版日期:2017-08-20 发布日期:2020-10-13
  • 通讯作者: **王基铭(1942—),男,上海人,教授,中国工程院院士,博士生导师,石油化工及工程管理专家。E-mail: liujun@sinopec.com。
  • 作者简介:于靓(1977—),女,北京人,博士研究生,主要研究方向为化工安全风险评估。E-mail:jing_yu77@hotmail.com。

Research on benzene leakage simulation and environmental exposure risk assessment for p-xylene disproportionation unit

YU Jing1, SHEN Xiaobo2, YANG Minglei1, XIU Guangli2, QIAN Feng1, WANG Jiming3   

  1. 1 Key Laboratory of Advanced Control and Optimization for Chemical Process, Ministry of Education, East China University of Science and Technology, Shanghai 200237,China;
    2 School of Resources and Environmental Engineering, East China university of Science and Technology, Shanghai 200237,China;
    3 School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China
  • Received:2017-04-01 Revised:2017-06-09 Online:2017-08-20 Published:2020-10-13

摘要: 为定量评估芳烃装置歧化单元安全和环境风险,采用机制模型与传统危险与可操作性分析(HAZOP)相结合的方法,对该装置的循环氢压缩机失效等3个典型事故进行定量危害分析;针对3起事故中发生的苯泄漏情形,进一步采用工艺危害分析软件(PHAST)和危险环境区域(ALOHA)软件,模拟苯泄漏和扩散行为,并定量评价不同人员环境暴露吸入风险。结果表明:由于气团爬升效应和泄漏速率连续变化,PHAST的计算结果比ALOHA更准确;苯泄漏下风向不同位置的环境暴露风险处于10-5~10-4范围。

关键词: 苯, 歧化单元, 工艺危害分析软件(PHAST), 危险环境区域(ALOHA), 后果模拟, 环境暴露风险, 机制模型

Abstract: Integration of mechanism model with HAZOP methodology is used to quantitatively assess three major failure events for p-xylene disproportionation unit,such as failure of circulation hydrogen. PHAST and ALOHA are used to simulate benzene release and predict concentration distribution for three accidents. Environmental exposure risk index is used to divide the risk areas. The results show that PHAST is more reliable than ALOHA because cloud rising effects and time-varying release rate are considered in PHAST simulation, and that the environmental exposure risk is in the range 10-5-10-4.

Key words: benzene, disproportionation unit, process hazard analysis software tool(PHAST), area locations of hazardous atmospheres(ALOHA), consequence simulation, environmental exposure risk, mechanism model

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