乙烯工业 ›› 2026, Vol. 38 ›› Issue (1): 35-37.

• 工业技术 • 上一篇    下一篇

丁二烯装置萃取精馏系统防聚合运行探讨

于永刚,耿晓煜,陈  权   

  1. 中国石油独山子石化分公司, 新疆 独山子 833699
  • 收稿日期:2025-02-03 修回日期:2025-05-25 出版日期:2026-03-25 发布日期:2026-04-10
  • 作者简介:于永刚,男,2005年毕业于南京林业大学化学工程与工艺专业,本科,现从事乙烯装置、苯乙烯装置、丁二烯装置、芳烃装置、MTBE/1-丁烯装置的工艺安全管理工作,乙烯一部一级工程师, 高级工程师。

Discussion on Anti-polymerization Operation of Extractive Distillation Systems in Butadiene Units

Yu Yonggang, Geng Xiaoyu, Chen Quan   

  1. PetroChina Dushanzi Petrochemical Company,Dushanzi, Xinjiang, P.C.833699
  • Received:2025-02-03 Revised:2025-05-25 Online:2026-03-25 Published:2026-04-10

摘要:

2024年某石化公司丁二烯装置检修时,发现萃取精馏系统后洗塔塔顶第一层填料分布器存在大量的黑色渣状聚合物,堵塞了液体分布器,影响了萃取精馏系统的分离效果;同时发现溶剂换热器E-1130A管程的副线被聚合物塞满。文中分析聚合物产生的原因,结合生产实践和工艺控制指标,提出防范萃取精馏系统发生聚合的措施,延长装置的运行周期。

关键词: 丁二烯  , 聚合  , 原因分析  , 优化措施

Abstract:

During the overhaul of a butadiene unit of a petrochemical company in 2024, a large amount of black slag polymer was found in the first layer packing distributor at the top of post-wash tower for extractive distillation system, blocking the liquid distributor and affecting the separation effect of the extractive distillation system. Meanwhile, the bypass line on the tube side of solvent heat exchanger E-1130A was found to be completely filled with polymers. This paper analyzes the causes of polymer generation, and proposes some measures for preventing polymerization in the extractive distillation system combined with production practices and process control indicators, so as to extend the operation cycle of the unit.

Key words: butadiene, polymerization, cause analysis, optimization measure