2.3 Mt/a催化裂化装置吸收稳定系统模拟及优化  

Simulation and optimization of 2.3 Mt/a catalytic cracking absorption and stability system

作　　者：宁浩龙 申志兵[1] 车畅 李乐园 唐瑞源 梁生荣[1] 张君涛[1] 田斌 高沛琳 NING Haolong;SHEN Zhibing;CHE Chang;LI Leyuan;TANG Ruiyuan;LIANG Shengrong;ZHANG Juntao;TIAN Bin;GAO Peilin(Xi'an Key Laboratory of Low-carbon Utilization for High-carbon Resources,College of Chemistry and Chemical Engineering,Xi'an Shiyou University,Xi'an 710065,Shaanxi Province,China;School of Chemical Engineering,Northwest University,Xi'an 710069,Shaanxi Province,China)

机构地区：[1]西安石油大学化学化工学院西安市高碳资源低碳化利用重点实验室,陕西西安710065 [2]西北大学化工学院,陕西西安710069

出　　处：《化学工程》2025年第4期7-11,42,共6页Chemical Engineering(China)

基　　金：西安石油大学研究生创新与实践能力培养计划资助项目(YCS23213098);陕西省自然科学基础研究计划资助项目(2024JC-YBMS-085);国家油页岩开采研发中心开放基金(33550000-22-ZC0613-0255)。

摘　　要：采用化工流程模拟与分析软件Aspen Plus对某炼厂2.3 Mt/a催化裂化装置吸收稳定系统工艺流程进行系统的模拟研究。首先以实际生产数据模拟得到吸收稳定系统工艺流程模型,该模型与装置实际运行结果相符,从而确保流程模拟的可行性与正确性。之后通过分析工艺条件,采用以闪蒸罐代替再吸收塔的优化改造过程,其目的是为了获得合适的烃类组分作为补充吸收剂来强化吸收塔的吸收过程。此优化方案不仅减少了流股与塔设备数量,显著降低了设备成本的投资,而且优化改造后吸收稳定流程降低了原有流程中补充吸收剂换热器以及解吸塔再沸器的能耗,使得综合能耗较原有流程下降16.38 GJ/h,节能率2.21%,每年可为企业增加效益约2183.74万元。Systematic simulation study of the absorption stabilization system process of a 2.3 Mt/a catalytic cracking unit in a refinery was carried out using Aspen Plus,a chemical process simulation and analysis software.Firstly,the process model of absorption stabilization system was obtained by simulating the actual production data,which was consistent with the actual operation results of the device,thus ensuring the feasibility and correctness of the process simulation.After that,by analyzing the process conditions,a flash tank was used instead of a re-absorption tower to obtain suitable hydrocarbon components as a supplementary absorption liquid,which could enhance the absorption process of the absorption tower.This optimization scheme reduces the number of stream and tower equipment,and significantly reduces the investment of equipment cost.After optimization,the absorption and stabilization process reduce the energy consumption of the supplementary absorbent heat exchanger and desorption tower reboiler in the original process,resulting in a decrease of 16.38 GJ/h in comprehensive energy consumption compared with the original process,with an energy saving rate of 2.21%.This can increase the factory's benefits by approximately 2.18374×107 yuan/a.

关 键 词：吸收稳定 流程模拟 节能优化 催化裂化 

分 类 号：TH3[机械工程—机械制造及自动化]