乙烯工业 ›› 2026, Vol. 38 ›› Issue (3): 27-32.

• 工业技术 • 上一篇    下一篇

乙烯装置开停工优化措施的探究与实践

李 磊,李中华,张 磊,王军伟,于慧敏   

  1. 中国石油独山子石化分公司,新疆 独山子
  • 收稿日期:2025-04-29 修回日期:2026-03-10 出版日期:2026-09-25 发布日期:2026-09-28
  • 作者简介:李磊,男,2012年毕业于四川大学化学工程与工艺专业,工学学士,现从事工艺技术管理工作,高级工程师。

Exploration and Practice of Optimization Measures for Start-up and Shutdown of Ethylene Plants

Li Lei,Li Zhonghua, Zhang Lei,Wang Junwei,Yu Huimin   

  1.  PetroChina Dushanzi Petrochemical Company, Dushanzi, Xinjiang,P.C.833699
  • Received:2025-04-29 Revised:2026-03-10 Online:2026-09-25 Published:2026-09-28

摘要:

以某石化公司220 kt/a乙烯装置2024年大检修开、停工过程为研究对象,系统分析了开停工技术措施的应用效果。通过裂解炉逐台退料、深冷分离区复热、停工物料回收线投用等优化措施,实现了物料宜收尽收、乙烯装置的减排控制创历年最优水平。有效降低开停工过程中的物料损失,提高能源利用效率。同时,文中对开停工过程中暴露的设备问题、操作不足进行了系统分析,并提出改进建议。

关键词: 乙烯装置  , 开停工  , 物料回收  , 火炬减排

Abstract:

Taking the start-up and shutdown processes of the 220 t/a ethylene plant of a petrochemical company for overhaul in 2024 as the research object, this paper systematically analyzes the application effect of technical measures for start-up and shutdown. Through optimization measures such as discharging materials from each cracking furnace one by one, reheating the cryogenic separation zone, and putting the shut-down material recovery line into operation, all suitable materials have been recovered, and the emission reduction control of the ethylene plant has reached the best level in history. It has effectively reduced the material loss during start-up and shutdown, and improved the energy utilization efficiency. Meanwhile, this paper conducts a systematic analysis of the equipment problems and operational deficiencies exposed during the start-up and shutdown, and puts forward some improvement suggestions.

Key words: ethylene plant, start-up and shutdown, material recovery, emission reduction for flares