氨合成塔操作线与平衡线的在线可视化模块开发  

Development of Online Visualization Module for Ammonia Synthesis Converter Operation Line and Balance Line

作　　者：陈义彪 刘志林 郭择永 赵芝慧 王俊文[1] 张玮[1] 刘永梅[1] 李剑锋 蔡颖辉 CHEN Yibiao;LIU Zhilin;GUO Zeyong;ZHAO Zhihui;WANG Junwen;ZHANG Wei;LIU Yongmei;LI Jianfeng;CAI Yinghui(College of Chemistry and Chemical Engineering,Taiyuan University of Technology,Taiyuan,Shanxi 030024,China;Shanghai Luanzhi Technology Co.,Ltd.,Shanghai 201799,China;Binhua Technology Co.,Ltd.,Binzhou,Shandong,256600,China)

机构地区：[1]太原理工大学化学工程与技术学院,山西太原030024 [2]上海孪智科技有限公司,上海201799 [3]滨化技术有限公司,山东滨州256600

出　　处：《肥料与健康》2024年第5期49-54,共6页Fertilizer & Health

基　　金：山西省研究生教育改革项目(2021YJG054);山西省教学改革项目(2023BG-LGD014、2023BG-LGD094);教育部产学合作协同育人项目(221004650101701、220806655155554)。

摘　　要：在选择吉布斯反应器的基础上,根据某专利商提供的三床层氨合成塔相关数据,修正了UniSim流程模拟软件数据库中氨的标准摩尔生成吉布斯自由能。结合某150 kt/a氨合成塔实际生产工艺和集散控制系统(DCS)采集的现场生产数据,采用OPC通讯协议,实时更新UniSim的动态输入数据,构建了“生产数据驱动+机理模型”的数字孪生方法,达到了计算结果与生产数据的高度吻合;通过构建在线合成氨动态操作线和平衡线,实现了氨合成塔的在线评价,为即时操作决策和实时优化提供了数字化依据。Based on the selection of Gibbs reactor,the standard molar Gibbs free energy for ammonia formation in the UniSim process simulation software database is revised according to the relevant data of a three beds ammonia synthesis converter provided by a patent vendor.Combined with the actual production process of a 150 kt/a ammonia synthesis converter and the on-site production data collected by the distributed control system(DCS),the OPC communication protocol is used to update the dynamic input data of UniSim in real time,and a digital twin method of"production data driven+mechanism model"is constructed,achieving a high degree of consistency between the calculation results and the production data.By constructing online dynamic operating lines and a balance line for synthesis of ammonia,the online evaluation of the ammonia synthesis converter has been achieved and providing a digital basis for real-time operation decision-making and optimization.

关 键 词：氨合成塔 平衡常数 UniSim 吉布斯反应器 流程模拟 

分 类 号：TQ113.266.5[化学工程—无机化工]