三乙胺、乙醇和水混合物分离工艺模拟与优化  

SIMULATION AND OPTIMIZATION OF SEPARATION PROCESS FOR MIXTURE OF TRIETHYLAMINE,ETHANOL AND WATER

作　　者：栾国颜 袁博 高贺 孙浩 Luan Guoyan;Yuan Bo;Gao He;Sun Hao(School of Petrochemical and Engnieering,Jilin Institute of Chemical Technology,Jilin 132022,Jilin,China;Jilin Chemical Process Optimization and Energy-Saving Science and Technology Innovation Center,Jilin 132022,Jilin,China;School of Chemical and Engineering,Dalian University of Technology,Dalian 116012,Liaoning,China)

机构地区：[1]吉林化工学院石油化工学院,吉林吉林132022 [2]吉林省化工过程优化与节能科技创新中心,吉林吉林132022 [3]大连理工大学化工学院,辽宁大连116012

出　　处：《精细石油化工》2021年第2期45-49,共5页Speciality Petrochemicals

基　　金：吉林省重点科技攻关项目(20140204086GX)。

摘　　要：以化工流程模拟软件Aspen Plus为工具,通过模拟数据与文献数据对比,确定选用SR-POLAR热力学方程模拟研究体系。利用残余曲线、蒸馏边界理论对三乙胺、乙醇和水混合液模拟分析,确定采用变压精馏技术分离共沸混合物设计方案,利用灵敏度分析对流程进行优化设计。结果表明:低压精馏塔理论塔板数为25、回流比为5,原料进料位置在第21块塔板;加压精馏塔理论塔板数为20、回流比为2,进料位置在第11块塔板。在此条件下,塔底产品三乙胺的质量纯度在99.9%以上,达到了预期的分离效果。Based on Aspen Plus,a chemical process simulation software,SR-POLAR thermodynamic equation is selected for the simulation process,and Pressure-swing distillation is adopted through residual curve and distillation boundary to simulate the separation process of the mixture of triethylamine,ethanol and water.Sensitivity analysis is used to optimize the process.The results show that the purity of triethylamine(TEA)is over 99.9%under the separation system of a low pressure tower and a high pressure tower.Theoretical plates nmber of the low-pressure tower is 25,reflux ratio is 5,feed plate is 21,theoretical plates number of high pressure tower is 20,reflux ratio is 2 and feed plate is 11.

关 键 词：三乙胺 残余曲线 变压精馏 灵敏度分析 

分 类 号：TQ028.4[化学工程]