文献类型：期刊文献

中文题名：基于化工流程动态模拟的HAZOP分析方法

英文题名：HAZOP Methodology Based on Chemical Process Dynamic Simulation

作者：于靓[1];杨明磊[1];钱锋[1];王基铭[2]

机构：[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]华东理工大学化工学院,上海200237

年份：2018

卷号：44

期号：1

起止页码：28

中文期刊名：华东理工大学学报（自然科学版）

外文期刊名：Journal of East China University of Science and Technology

收录：CSTPCD;;Scopus;北大核心:【北大核心2017】；CSCD:【CSCD_E2017_2018】；

基金：国家科技支撑计划(2015BAF22B02);国家自然科学基金青年基金(21403066);中央高校基本科研业务费重点科研基地创新基金(222201717014;222201514329)

语种：中文

中文关键词：HAZOP;流程动态模拟;重芳烃精馏塔

外文关键词：HAZOP;process dynamic simulation; heavy aromatics rectification column

摘要：采用化工流程动态模拟与传统危险与可操作性分析(HAZOP)相结合的方法,从机理模型和工艺危害后果定量分析的角度出发,以芳烃联合装置中重芳烃精馏工艺和设备为研究对象,选取塔釜热负荷失控和塔顶冷凝器失效两种危害场景进行分析。结果表明,相对于传统HAZOP方法,基于机理模型的HAZOP方法可以定量预测危险事件后果,其模拟结果可以为设定关键工艺参数的报警值和联锁值提供理论依据。
HAZOP, a qualitative risk assessment tool, has been widely used. Frequency and the worst credit consequence for each hazardous scenario are evaluated. The consequences of hazardous scenarios are normally decided by brainstorming and human experiences. Proper consequence assessment is crucial for risk level determination. Aspen steady model for a heavy aromatics rectification column in the heavy aromatic rectification process of aromatics combined unit has been established and then converted to dynamic model. Process data is used to correct and verify the model results. The simulation results agreed with actual operation situation of the device very well. The method combining dynamic simulation with the traditional HAZOP is applied for quantitative consequence determination and risk assessment. Two failure scenarios of full opening of steam valves in tower bottom reboiler steam valve and cooling of tower top condenser in a heavy aromatics rectification column are chosen. Deviations are simulated by Aspen dynamic model. Temperature and pressure at rectification column top and bottom are tracked as two important parameters. Aspen dynamic model can predicate the worst consequence for each scenario. A comparison is made between traditional HAZOP and new HAZOP based on the dynamic model. It is shown that the new HAZOP process is more efficient and that the consequence of deviation is clearly defined. Also, the result of the dynamic modeling can be used to define alarm/interlock set points.