炼油技术与工程 ›› 2024, Vol. 54 ›› Issue (5): 20-24.

• 加工工艺 • 上一篇    下一篇

某催化裂化装置吸收稳定系统工艺优化总结

刘成军, 张洪笙, 叶剑云   

  1. 1.北京化工大学; 2.中石化节能技术服务有限公司
  • 收稿日期:2023-12-15 出版日期:2024-05-15 发布日期:2024-05-21
  • 通讯作者: 叶剑云，高级工程师，硕士研究生。联系电话：13466388386,E-mail:yejy.sem@sinopec.com。
  • 作者简介:刘成军，硕士研究生，毕业于北京化工大学机械专业，从事催化裂化装置节能及能量系统优化研究。E-mail:receiveliu@163.com。

Summary of process optimization for absorption and stabilization system of FCC unit

Liu Chengjun, Zhang Hongsheng, Ye Jianyun   

  1. 1.Beijing University of Chemical Technology; 2.SINOPEC Energy Management Co., Ltd.
  • Received:2023-12-15 Online:2024-05-15 Published:2024-05-21

PDF

摘要：

以某炼油厂4.2 Mt/a催化裂化装置吸收稳定系统为研究对象，利用Aspen Plus软件进行建模，通过与标定数据对比，验证了模型的正确性。与原系统对比，新系统在产品无损失且达到设计指标的情况下，补充吸收剂用量减少了45 t/h,下降20.36%,系统总热负荷为60 887.57 kW,下降19.39%;改造后的吸收稳定系统总能耗减少了13 631.14 kW,相比原系统下降7.77%,减少的热量可产0.45 MPa蒸汽21 t/h,经济效益增加2.016×107元/a,设备改造预计投资约2×107元，投资回收期仅1 a,经济效益显著。

关键词: 催化裂化装置, 吸收稳定系统, 重汽油分离器, 重汽油解吸塔, 节能降耗

Abstract:

This paper takes the absorption and stabilization system of a 4.2 MM TPY FCC unit in a certain refinery as the research object, uses Aspen Plus software for modeling, the correctness of the model is verified by comparing with the calibration data. By comparing with the original system, it can be seen that the new system reduces the amount of supplementary absorbent by 45 t/h, a decrease of 20.36%, and the total heat load of the system is 60,887.57 kW, a decrease of 19.39%, while the product is without loss and meets the design specifications. The total energy consumption of the modified absorption and stabilization system has decreased by 13,631.14 kW, a decrease of 7.77% compared to the original system. The reduced heat can produce 21 t/h of 0.45 MPa steam, increasing economic benefit of 2.016×107 yuan per year. The expected investment for equipment renovation is about 2×107 yuan, with a payback period of only 1 year. The economic benefit is remarkable.

Key words: FCC unit, absorption and stabilization system, heavy gasoline separator, heavy gasoline desorption tower, energy-saving and consumption-reducing