石油炼制与化工 ›› 2023, Vol. 54 ›› Issue (10): 117-121.

• 节能减排 • 上一篇    下一篇

基于HIPS和夹点技术的芳烃联合装置火炬减排优化与实施

远战红1,张建华2,张方方2,马智超1,高中金1   

  1. 1. 中海油惠州石化有限公司
    2. 中国石化工程建设有限公司
  • 收稿日期:2023-03-10 修回日期:2023-06-07 出版日期:2023-10-12 发布日期:2023-09-24
  • 通讯作者: 张建华 E-mail:zhangjh@sei.com.cn

OPTIMIZATION AND IMPLEMENTATION OF FLARE EMISSION REDUCTION IN AROMATIC COMBINED PLANT BASED ON HIPS AND PINCHED APPROACH

  • Received:2023-03-10 Revised:2023-06-07 Online:2023-10-12 Published:2023-09-24
  • Contact: Zhang Jianhua E-mail:zhangjh@sei.com.cn

摘要: 以某采用吸附法模拟移动床技术新建的单系列1.5 Mt/a对二甲苯芳烃联合装置(其公用工程依托企业原有设施)为举例装置,针对全厂事故停电时,原有火炬系统的接收能力仅有500 t/h,不能满足需求的问题,分别对装置中二甲苯塔、抽出液塔、重整油分馏塔实施高完整性保护系统(HIPS)措施,并对抽余液塔采用夹点设计优化,从而大幅度降低装置的火炬排放量。结果表明,应用HIPS和夹点技术后,装置火炬排放量从常规时的3 790 t/h降低到438 t/h,满足了项目全厂事故停电时的火炬排放要求。

关键词: 芳烃联合装置, 全厂停电, 火炬减排, HIPS, 夹点技术, 优化, 实施

Abstract: An example is the newly built 1.5 Mt/a p-xylene aromatic unit, which uses adsorption simulate moving bed technology, and its utilities rely on the existing facilities of enterprise. The receiving capacity of original flare system is only 500 t/h, which can not meet the demand in case of general power failure(GPF)happened. HIPS was applied to xylene column, extract column and reformate splitter column, and the pinch point design was optimized to reduce the flare emission. The results showed that the application of HIPS and pinch technology could reduce the torch emission from 3 790 t/h to 438 t/h, which met the requirements of the whole plant GPF accident.

Key words: adsorption aromatics complex, general power failure, flare release, HIPS, pinched approach, optimization, implementation