文献类型：期刊文献

中文题名：酮苯脱蜡溶剂回收系统节能优化研究

英文题名：STUDY ON ENERGY SAVING OPTIMIZATION FOR SOLVENT RECOVERY SYSTEM OF KETONE BENZOL DEWAXING UNIT

作者：邵义智[1];沈宇松[1];李少萍[1]

机构：[1]华东理工大学石油加工研究所,上海200237

年份：2020

卷号：51

期号：6

起止页码：114

中文期刊名：石油炼制与化工

外文期刊名：Petroleum Processing and Petrochemicals

收录：CSTPCD;;Scopus;北大核心:【北大核心2017】；CSCD:【CSCD_E2019_2020】；

语种：中文

中文关键词：酮苯脱蜡;模拟优化;溶剂回收;节能降耗

外文关键词：ketone benzol dewaxing;simulation optimization;solvent recovery;energy saving

摘要：为探讨某石化企业酮苯脱蜡装置溶剂回收系统节能优化的影响因素,运用Aspen Plus流程模拟软件,采用NRTL物性方法对脱蜡油装置溶剂回收系统进行模拟计算,分析进料酮苯比、水含量以及关键换热器对装置能耗的影响,探索酮苯脱蜡油装置溶剂回收系统蒸汽用能最优途径。发现将进料酮苯质量比控制为0.65和水质量分数为0.3%时,总蒸汽单耗降低约5.63%,得到最低加热负荷处对应的一次闪蒸塔蒸汽蒸出量、二次闪蒸塔蒸汽蒸出量、三次闪蒸塔蒸汽蒸出量的比例为:22.39∶26.98∶50.63。在此基础上如果将2个关键换热器热出料汽化率降低至0,则有效换热面积可分别增加27.16%和13.36%,总热负荷降低约24.39%。
The influence factors on energy saving optimization for solvent recovery system of ketone benzol dewaxing unit were explored by NRTL physical property method and Aspen Plus process simulation software.The effects of ketone benzene ratio,water content,and key heat exchangers on energy consumption of the plant were analyzed to find the optimal steam energy utilization.The results showed that when the ketone benzene mass ratio was controlled at 0.65 and the water content was controlled at 0.3%,the total steam consumption was reduced by 5.63%,and thus the proportion of steam output of the primary,secondary,and tertiary flash tower was 22.39∶26.98∶50.63.On this basis,if the vaporization rates of hot discharge of two key heat exchangers were reduced to 0,the effective heat transfer area of the two exchanges would increase by 27.16%and 13.36%,respectively,and the total heat load would reduce by about 24.39%.