乙烯工业 ›› 2025, Vol. 37 ›› Issue (4): 10-14.

• 工业技术 • 上一篇    下一篇

汽油分馏塔压差升高的原因分析与解决措施

周海强   

  1. 中国石油化工股份有限公司镇海炼化分公司,浙江 宁波 315207
  • 收稿日期:2024-10-24 修回日期:2025-03-10 出版日期:2025-12-25 发布日期:2025-12-30
  • 作者简介:周海强,男,2017年毕业于辽宁石油化工大学化学工程与工艺作业,主要从事乙烯裂解装置工艺技术管理工作,工程师。

Cause Analysis and Solutions to Increased Pressure Difference in Gasoline Fractionators#br#

Zhou Haiqiang   

  1. SINOPEC Zhenhai Refining & Chemical Company,Ningbo,Zhejiang, P.C.315207
  • Received:2024-10-24 Revised:2025-03-10 Online:2025-12-25 Published:2025-12-30

摘要:

某炼化企业乙烯装置自2018年6月大修开工后,汽油分馏塔汽/柴油段压差逐渐上升,从开工初期的5.4 kPa上涨至最高的7.5 kPa,盘油段和急冷油段压差相对比较稳定。针对汽油分馏塔汽/柴油段压差上升问题,制定相关措施,控制汽油分馏塔压差上升的趋势,并稳定在6 kPa以内,2023年装置大检修时通过对塔内件进行改造,成功将压差降至2.5 kPa左右。

关键词: 汽油分馏塔  , 结垢  , 压差  , 操作优化  , 技术改造

Abstract:

Since the ethylene plant of a refinery was put into operation in June 2018 after overhaul, the pressure difference in the gasoline/diesel section of gasoline fractionator has gradually increased from 5.4 kPa at the initial startup to a maximum of 7.5 kPa, while the pressure difference in the pumparound section and the quench oil section remained relatively stable. In response to the increased pressure difference in the gasoline/diesel section of gasoline fractionator, relevant measures were developed to control the rising trend and stabilize the pressure difference within 6 kPa. The internal components of the tower were modified during the overhaul in 2023, successfully reducing the pressure difference to around 2.5 kPa.

Key words: gasoline fractionator, fouling, pressure difference, operation optimization, technical improvement