炼化企业环境风险评价初步研究及航油生产案例分析

发布时间：2018-03-29 21:06

本文选题：炼化企业　切入点：航油　出处：《吉林农业大学》2013年硕士论文

【摘要】：中国航空业的迅速发展,导致航空煤油的需求增速加快,航油生产企业备受关注,对航油生产项目进行环境风险评价十分必要,能降低对人类健康的损害。我国对于航空煤油的生产环境风险评价理论研究较少,完善航油生产环境风险评价及管理体系对降低企业生产环境风险有着重要的作用。论文本着把环境风险评价和风险管理相结合的宗旨,对环境风险及其评价理论进行初步介绍,对炼化企业环境风险评价目的、程序、内容、方法进行初步探讨。本论文通过对炼化企业生产工艺流程、风险识别、源项分析、事故后果预测、风险计算、管理措施几个步骤分析研究表明炼化企业主要风险源项为航油成品罐爆炸和有毒气体的泄漏；以半数致死浓度为参考,运用健康风险评价模型进行风险计算,对于年产20万吨航油生产企业,其H2S的LC50为618mg/m3,IDLH值为415mg/m3, MAC值为10mg/m3,风险影响致死范围限于厂内,事故预测地面浓度半数致死浓度影响范围较小,处在该风险事故影响范围内的人主动避让,总体上环境风险值处在可接受范围内,并提出了切实可行的环境风险防范措施,为企业环境风险管理提供理论依据。
[Abstract]:With the rapid development of aviation industry in China, the demand for aviation kerosene is increasing rapidly, and aviation oil production enterprises are concerned. It is necessary to evaluate the environmental risk of aviation oil production projects, which can reduce the harm to human health.There are few researches on the environmental risk assessment of aviation kerosene production in China. Improving the environmental risk assessment and management system of aviation kerosene production plays an important role in reducing the production environmental risk.Based on the purpose of combining environmental risk assessment with risk management, the paper introduces the environmental risk and its evaluation theory, and discusses the purpose, procedure, content and method of environmental risk assessment in refinery and chemical enterprises.In this paper, the production process, risk identification, source term analysis, accident consequence prediction, risk calculation,The analysis of several steps of management measures shows that the main risk source of refinery enterprises is the explosion of aviation oil finished product tank and the leakage of toxic gas, and the risk calculation is carried out by using the health risk assessment model with the reference of 50% lethal concentration.For the enterprises producing 200000 tons of aviation oil per year, the LC50 of H2S is 618 mg / m ~ (3) IDLH is 415mg / m ~ (3), the MAC value is 10 mg / m ~ (3), the range of risk death is limited to the plant, and the range of accident prediction ground concentration 50% lethal concentration is relatively small.In general, the environmental risk value is within the acceptable range, and puts forward feasible environmental risk prevention measures, which provide a theoretical basis for enterprise environmental risk management.
【学位授予单位】：吉林农业大学
【学位级别】：硕士
【学位授予年份】：2013
【分类号】：TE687

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