ethylene,revamping of plant,sequence flow,cold area,refrigeration system ,"/> <b>顺序流程乙烯装置冷区扩能改造方案探讨</b>

乙烯工业 ›› 2021, Vol. 33 ›› Issue (1): 29-37.

• 工业技术 • 上一篇    下一篇

顺序流程乙烯装置冷区扩能改造方案探讨

刘永莉   

  1. 中国石化工程建设有限公司,北京 100101
  • 收稿日期:2020-07-06 修回日期:2020-08-18 出版日期:2021-03-25 发布日期:2021-03-23
  • 作者简介:刘永莉,女,1998年毕业于天津大学化学工程专业,硕士,主要从事石油化工设计工作,高级工程师。

Discussion on Revamping Scheme of Cold Area in Sequential Process Ethylene Plant

Liu Yongli.   

  1.  SINOPEC Engineering Incorporation, Beijing, P.C.100101

  • Received:2020-07-06 Revised:2020-08-18 Online:2021-03-25 Published:2021-03-23

摘要:

乙烯装置分离冷区工艺流程复杂,技术难度高,是全装置工艺设计的关键。以某200 kt/a乙烯挖潜改造、1 100 kt/a乙烯装置改造和1 190 kt/a乙烯装置改造为例,着重论述了顺序分离流程冷区改造的工艺技术特点,对深冷及脱甲烷系统、制冷系统和碳二分离系统的工艺改造方案进行了说明,分析了各装置在具体改造方案上的工艺技术特点,最后总结出顺序流程深冷系统、制冷系统以及乙烯全装置扩能改造的最佳方案和改造原则。

关键词: 乙烯 , 装置改造 , 顺序流程 , 冷区 , 制冷系统

Abstract: The process flow of cold area in ethylene plant is complex and difficult, and it is the key to the process design of the whole plant. Taking the revamping of a 200 kt/a ethylene plant, the revamping of a 1100 kt/a ethylene plant and the revamping of a 1190 kt/a ethylene plant as examples, the technological characteristics of the revamping of cold area in sequential recovery process is emphatically discussed. The process revamping schemes of cryogenic and demethanization system, refrigeration system and C2 recovery system are discussed, and the process technological characteristics the specific revamping scheme of each plant are analyzed. The best revamping schemes and revamping principles of sequential process cryogenic system, refrigeration system and the whole ethylene plant are summarized.

Key words:

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ethylene, revamping of plant, sequence flow, cold area, refrigeration system