华东理工大学学报（自然科学版）2018，Vol.44Issue(1)：28-32,109,6.DOI:10.14135/j.cnki.1006-3080.20170301002
基于化工流程动态模拟的HAZOP分析方法
HAZOP Methodology Based on Chemical Process Dynamic Simulation
摘要
Abstract
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.关键词
HAZOP/流程动态模拟/重芳烃精馏塔Key words
HAZOP/process dynamic simulation/heavy aromatics rectification column分类
化学化工引用本文复制引用
于靓,杨明磊,钱锋,王基铭..基于化工流程动态模拟的HAZOP分析方法[J].华东理工大学学报（自然科学版）,2018,44(1):28-32,109,6.基金项目
国家科技支撑计划(2015BAF22B02) （2015BAF22B02）
国家自然科学基金青年基金(21403066) （21403066）
中央高校基本科研业务费重点科研基地创新基金(222201717014,222201514329) （222201717014,222201514329）
