乙烯工业 ›› 2026, Vol. 38 ›› Issue (2): 19-22.

• 工业技术 • 上一篇    下一篇

乙烯装置原料轻质化出现的问题及对策

孙仰阔,汪卓航   

  1. 中国石化中原石油化工有限责任公司,河南 濮阳 457000
  • 收稿日期:2025-03-12 修回日期:2025-10-20 出版日期:2026-06-25 发布日期:2026-06-25
  • 作者简介:孙仰阔,男,2008年毕业于安阳工学院机械制造及其自动化专业,工学学士,主要从事工艺管理工作,工程师。

PROBLEMS IN CRACKING LIGHTER FEEDSTOCKS IN ETHYLENE PLANTS AND THE COUNTERMEASURES

Sun Yangkuo, Wang Zhuohang.    

  1. SINOPEC Zhongyuan Petrochemical Corp. Ltd., Puyang, Henan, P.C.457000
  • Received:2025-03-12 Revised:2025-10-20 Online:2026-06-25 Published:2026-06-25

摘要:

某石化公司乙烯装置自2023年6月起提高轻质原料的加工比例,首次引入大量纯乙烷原料,大幅提高了乙烯收率,但也出现了急冷油、超高压蒸汽、甲烷产量不足,压缩机、脱甲烷塔、脱乙烷塔、乙烯精馏塔超负荷运行等瓶颈,影响装置正常运行。通过对裂解炉、压缩机、碳一/碳二循环流程进行工艺改造,并对急冷系统、冷量分配、脱甲烷塔、脱乙烷塔、乙烯精馏塔的操作参数进行优化,缓解或消除了这些瓶颈对生产的影响,通过一系列改造优化,装置乙烯收率大幅提升,为企业节能降耗、降本增效做出了贡献。

关键词: 原料轻质化, 乙烷裂解, 操作优化, 技术改造

Abstract:

The ethylene plant of a petrochemical company has improved its ethylene yield by increasing the processing ratio of light feedstocks since June 2023, especially by introducing a large amount of pure ethane for the first time. However, the system has encountered production bottlenecks such as insufficient quench oil, SS and methane production, and overloaded operation of compressors, demethanizer, deethanizer and ethylene distillation tower, which have affected the normal operation of the plant. Through process modification of the cracking furnace, compressors, and C1, C2 cycle process, as well as the optimization of operation parameters of the quench system, cooling capacity distribution, demethanizer, deethanizer and ethylene distillation tower, the impact of these bottlenecks on production has been weakened or eliminated. Through a series of modifications and optimizations, the ethylene yield of the ethylene plant has been significantly improved, contributing to the energy conservation, consumption reduction, cost reduction, and efficiency improvement of the enterprise.

Key words: lighter feedstock, ethane cracking, operation optimization, technical transformation