焦炉气转化工段风险分析  

Risk Analysis of Coke Oven Gas Conversion Section

作　　者：胡飞 毕颖 刘沙沙 HU Fei;BI Ying;LIU Shasha(Shenyang University of Chemical Technology,Shenyang 110142,China)

机构地区：[1]沈阳化工大学环境与安全工程学院,辽宁沈阳110142

出　　处：《沈阳化工大学学报》2024年第1期24-30,89,共8页Journal of Shenyang University of Chemical Technology

摘　　要：利用化工流程模拟软件Aspen Plus构建焦炉气转化工段模型,运用危险与可操作分析(HAZOP)分析转化炉氧气、焦炉气、二氧化碳和水蒸气等进料流量偏差对转化炉热负荷和温度的影响.结合工艺安全指标,得到操作参数安全阈值,实现HAZOP偏差定量分析.由模拟结果可知:进料温度不是造成转化炉温度急剧升高的主要影响因素,但补水流股进料温度过低会抑制转化反应;焦炉气与氧气的流量过大是导致转化工段热负荷增加和温度升高的关键因素;由于偏差的产生源自于设备的异常工况,处于关键位置和控制关键参数的设备对系统的热负荷和温度的变化影响极大.Chemical process simulation software Aspen Plus was used to build a coke oven gas conversion section model,and the influence of feed flow deviation of oxygen,coke oven gas,carbon dioxide and water vapor on the heat load and temperature of the reformer was analyzed by hazard and operational analysis(HAZOP).Combined with the process safety index,the safety threshold of operation parameters was obtained,and the quantitative analysis of HAZOP deviation was realized.It can be seen from the simulation results that the feed temperature is not the main factor causing the sharp rise of the reformer temperature,but too low feed temperature of the replenishment stream will inhibit the conversion reaction.The excessive flow of coke oven gas and oxygen is the key factor leading to the increase of heat load and temperature in the reformer section.Since the deviation is caused by the abnormal working condition of the equipment,the equipment in the key position and controlling the key parameters has a great influence on the thermal load and temperature change of the system.

关 键 词：危险与可操作性分析 Aspen Plus 灵敏度分析 定量风险分析 

分 类 号：X937[环境科学与工程—安全科学]