加氢裂化装置吸收解吸塔优化研究  

OPTIMIZATION OF ABSORPTION AND DESORPTION TOWER IN HYDROCRACKING UNIT

作　　者：王萌 Wang Meng(Yueyang Changling Refinery Engineering Co.,Ltd.,Yueyang,Hunan,414000)

机构地区：[1]长岭炼化岳阳工程设计有限公司,湖南岳阳414000

出　　处：《石油化工设计》2020年第4期38-40,I0003,共4页Petrochemical Design

摘　　要：加氢裂化吸收稳定系统中吸收解吸塔的液相进料位置和温度通常按过冷态设计,但实际状态为饱和态,因此,吸收解吸塔的优化对装置物耗、能耗有较大影响。借助流程模拟软件,就液相进料位置和汽提塔回流罐操作温度与物料损失、能量消耗和操作费用的影响进行了研究,并提出了优化方法。对某100万t/a加氢裂化吸收稳定系统的应用结果表明,装置干气中重组分损失可降低37%,能耗可降低23%,可提高效益164万元/a。The feed position and temperature of the absorption and desorption tower in hydrocracking unit are usually designed according to the undercooled liquid feed to the absorption and stabilization system,but the liquid feed is actually saturated.Therefore,the optimization of absorption and desorption tower can greatly influence the material consumption and energy consumption of the unit.The effects of liquid feed position and stripping tower reflux temperature on material loss,energy consumption and operating cost are studied using Pro/II,and some optimization methods are proposed.The optimization results of the absorption and stabilization system in a 1.0 Mt/a hydrocracking unit show that the loss of heavy components in dry gas can be reduced by 37%,the energy consumption can be reduced by 23%,and the benefit can be increased by 1.64 million CNY per year.

关 键 词：加氢裂化 吸收解吸塔 进料位置 进料温度 

分 类 号：TE966[石油与天然气工程—石油机械设备]