实时优化技术在常减压装置的应用  

Application of Real-time Optimization Technology in Atmospheric and Vacuum Distillation Units

作　　者：徐小蕾 雷曼 Xu Xiaolei;Lei Man(Guangdong Institute of Corrosion Science and Technology Innovation,Guangzhou Guangdong 510535;Petro-CyberWorks Information Technology Co.,Ltd.,Beijing 100007)

机构地区：[1]广东腐蚀科学与技术创新研究院,广东广州510535 [2]石化盈科信息技术有限责任公司,北京100007

出　　处：《中外能源》2025年第4期82-88,共7页Sino-Global Energy

摘　　要：在整个炼油化工装置中,常减压装置是原油加工的第一道工序。要实现常减压装置经济效益的最大化,离不开工业过程自动化和实时优化(RTO)技术。通过对4号常减压装置进行详尽调查,从全厂相关生产链条展开剖析之后,提出了常减压装置实时优化系统设计思路。基于装置数据的采集及生产工艺剖析,设计了16个优化变量以及10个约束变量。通过实时优化系统的实施,建立了常减压装置的全流程严格机理模型,可以实时跟踪装置的生产情况,持续不断对装置进行在线优化,使装置的操作达到最佳的经济效益操作点。此外,以装置的原料、产品和公用工程等价格为导向,通过先进过程控制系统(APC)控制装置操作条件向RTO设定目标靠近,实现了全装置生产过程自动执行。应用结果表明,该系统有效实现了常减压装置增产、节能和降耗的目标,效益增加值为1565万元/a。在总结分析应用成效的同时,简要分析了商业软件的制约和二次开发的适用性。In the entire refinery and petrochemical plant,the atmospheric and vacuum distillation unit is the first step in crude oil processing.To maximize the economic benefits of the atmospheric and vacuum distilla-tion unit,industrial process automation and real-time optimization(RTO)technology are essential.By conduct-ing a thorough investigation of the No.4 atmospheric and vacuum distillation unit and analyzing the related production chains across the entire plant,a design approach for the real-time optimization system of atmo-spheric and vacuum distillation unit was proposed.Based on the collection of unit data and the analysis of production processes,16 optimization variables and 10 constraint variables were designed.Through the imple-mentation of the real-time optimization system,a rigorous mechanism model was established for the entire process of the atmospheric and vacuum distillation unit,so that real-time tracking of production and on-line optimization can be realized to achieve the best economic operating point.In addition,guided by the prices of raw materials,products and utilities of the unit,the automated execution of the entire production process was achieved by controlling the operating conditions of the unit through an Advanced Process Control(APC)sys-tem to align with the targets set by real-time optimization(RTO).The application results indicate that the sys-tem effectively achieves the goals of increased production,energy saving and consumption reduction for the atmospheric and vacuum distillation unit,resulting in an annual benefit increase of 15.65 million yuan.Meanwhile,a brief analysis of the constraints of commercial software and the applicability of secondary development was conducted.

关 键 词：常减压装置 实时优化 核磁共振 先进控制 经济效益 

分 类 号：F42[经济管理—产业经济]