延迟焦化吸收稳定系统模拟分析及操作优化  

PROCESS SIMULATION AND OPERATION OPTIMIZATION OF DELAYED COKER ABSORPTION-STABILIZATION SYSTEM

作　　者：李丹[1] Li Dan(SINOPEC Jinling Company,Nanjing 210033)

机构地区：[1]中国石化金陵分公司,南京210033

出　　处：《石油炼制与化工》2023年第5期108-112,共5页Petroleum Processing and Petrochemicals

摘　　要：针对延迟焦化吸收稳定系统普遍存在分离效果较差的问题,以中国石化金陵分公司1.85 Mt/a延迟焦化装置为研究实例,采用PetroSIM流程模拟软件对该吸收稳定系统进行流程模拟与分析,验证结果表明模拟工艺参数与实际运行情况基本吻合。在此基础上,对实际生产过程进行了分析,考察了装置补充吸收剂流量、吸收剂温度、解吸塔进料方式、稳定塔回流比等操作变量对吸收稳定系统分离效果和装置负荷的影响,进而以模拟结果为依据对装置进行优化操作,优化后干气中C_(3)+组分摩尔分数降至2.37%,液化气产量增加0.69 t/h,取得了较好的经济效益。The 1.85 Mt/a delayed coking unit of SINOPEC Jinling Company was taken as an example to solve the problem of poor separation effect in the absorption-stabilization system of delayed coker.Process simulation software PetroSIM was used to simulate and analyze the process of the absorption-stabilization system.The results showed that the simulation process parameters were basically consistent with the actual operation.On this basis,the actual production process was analyzed,and the effects of operating variables,such as the flow rate of additional absorbent,the temperature of absorbent,the feeding mode of desorption column and the reflux ratio of stabilizing column,on the separation effect and load of absorption-stabilization system,were investigated.Based on the simulation results,the unit was optimally operated.After optimization,the molar fraction of C_(3)+in dry gas decreased to 2.37%,and the output of liquefied petroleum gas increased by 0.69 t/h.

关 键 词：延迟焦化 吸收稳定系统 流程模拟 优化 

分 类 号：TE624.32[石油与天然气工程—油气加工工程]