化工进展

• 化工过程与装备 • 上一篇    下一篇

精馏过程大型化集成技术

李鑫钢1,2,谢宝国3,吴 巍2,4,隋 红1,2,姜 斌1,2   

  1. 1天津大学化工学院,天津 300072;2精馏技术国家工程研究中心,天津300072;3中国石油天然气股份有限公司吉林化建工程有限公司,吉林省吉林市 132021;4北洋国家精馏技术工程发展有限公司,天津 300457
  • 出版日期:2011-01-05 发布日期:2011-01-05

Integrated technology in large-scale distillation process

LI Xingang1,2,XIE Baoguo3,WU Wei2,4,SUI Hong1,2,JIANG Bin1,2   

  1. 1School of Chemical Engineering and Technology,Tianjin University,Tianjin 300072,China;2National Engineering Research Center for Distillation Technology,Tianjin University,Tianjin 300072,China;3 Jilin Chemical Engineer & Construction,Jilin 132021,Jilin,China;4Bei-yang Distillation Engineering Limited Company,Tianjin 300457,China
  • Online:2011-01-05 Published:2011-01-05

摘要:

精馏是重要的化工分离单元操作过程。现代精馏技术要求通过关键设备的大型化实现规模效应。本文介绍了天津大学针对塔器大型化存在的液面梯度、流体分布、大型内构件的变形和长周期运行等问题,采用计算流体力学、力学分析和过程模拟与分析技术,进行了塔器大型化方面的理论和技术研究,形成多项大型化关键技术,并在千万吨级炼油和百万吨级乙烯等项目上成功应用,取得了良好经济和社会效益。本文还结合工业实例,介绍了塔器大型化关键技术及其应用。

Abstract:

Distillation is one of important chemical separation processes. The scale-up of critical equipment is required by modern distillation technology. Many difficultiessuch as liquid-level gradientfluid distributiondeformation of column internals and long period operationgreatly affect the scaling of tower. To solve these problemscomputational fluid dynamicsCFD),mechanical analysis and process simulation technologytheoretical and technical research of column enlarging have been used by Tianjin Universityand the design and manufacture of large-scale distillation equipment are improved and successfully used in the ten million tons refinery and million tons ethylene project with good economic and social benefits. The key technologies on tower large scaling and their application are introduced in this paper by the description of an industrial case8 millions t/a vacuum distillation column.

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