基于流程模拟软件对高温导热油产品分离塔操作异常的研究  

Research on Abnormal Operation of Product Separation Tower of High-temperature Heat Transfer Oil Unit Based on Process Simulation Software

作　　者：李松[1] Li Song(SINOPEC Jingmen Company,Jingmen Hubei 448000)

机构地区：[1]中国石化荆门分公司,湖北荆门448000

出　　处：《中外能源》2025年第1期91-96,共6页Sino-Global Energy

摘　　要：合成型高温导热油装置产品分离塔是提纯导热油产品的关键环节。以产品塔的分离过程为研究对象,利用Aspen plus流程模拟软件建立了该塔的稳态模拟流程,通过对比模拟数据与实际运行参数验证了模型的可靠性。在此基础上对该塔的异常工况进行了水力学分析,针对装置开工投产以来出现的操作异常、塔顶重组分含量超标的问题进行了模拟分析论证。模拟结果表明当塔釜抽出需部分返送进料时易发生液泛,要严格控制返塔量在1000kg/h以内,以确保液泛率维持在安全阈值之下;在正常工况下若塔的回流量低于1900kg/h会导致精馏段传质过程异常,操作时必须确保回流量不低于此值,以确保精馏段液体喷淋密度高于最小允许值,进而维持正常的传质过程。基于上述模拟分析结果,对实际操作进行了针对性调整,有效解决了产品塔的运行异常问题,产品质量达到指标要求。The product separation tower of synthetic high temperature heat transfer oil unit is a key link in purifying heat transfer oil products.Taking the separation process of product tower as the research object,Aspen plus process simulation software was used to establish the steady-state simulation flow of the tower,and the reliability of the model was verified by comparing the simulation data with the actual operating parame-ters.On this basis,hydraulic analysis was made on the abnormal working conditions of the tower,and the problems such as the abnormal operation and the over high heavy component content at the top of the tower since the startup of the unit were simulated and demonstrated.The simulation results show that liquid flooding is easy to occur when part of the materials from tower reactor is returned to the tower as feed,and the return flow should be strictly controlled within 1000kg/h to ensure that the liquid flooding rate is kept below the safety threshold.Under normal working conditions,if the return flow is lower than 1900kg/h,it will lead to abnormal mass transfer in the rectification section.The return flow must be kept no lower than this value during operation to ensure that the liquid spray density in the rectification section is higher than the minimum allowable value,so as to maintain the normal mass transfer process.Based on the above simulation analysis results,the actual operation was adjusted to effectively solve the abnormal operation problem of the prod-uct tower,and the product quality requirements were met.

关 键 词：精馏塔 流程模拟软件 水力学分析 

分 类 号：TE962[石油与天然气工程—石油机械设备]