DMF溶液双效精馏脱水过程模拟分析  

Simulation of Double Effect Distillation in the Concentration Process of N,N-Dimethyl Formamide(DMF)Solution

作　　者：卓易城 陈晶晶 揭会民 Zhuo Yicheng;Chen Jingjing;Jie Huimin(College of Chemical Engineering,Fuzhou University,Fuzhou 350000;Fujian Huazhi Engineering Technology,Ltd.,Fuzhou 350000,China)

机构地区：[1]福州大学石油化工学院,福建福州350000 [2]福建桦智工程技术有限公司,福建福州350000

出　　处：《广东化工》2022年第9期10-12,7,共4页Guangdong Chemical Industry

摘　　要：本文以DMF水溶液的减压精馏提浓过程为例,通过Aspen Plus流程模拟软件,对普通单效精馏与各级多效精馏技术分离DMF水溶液的过程进行模拟,对不同精馏过程的精馏能耗、设备投资等进行了估算,并对并流双效精馏、平流双效精馏、逆流双效精馏等三种不同精馏模型的计算结果进行了对比。从计算结果进行综合分析,本文认为DMF水溶液的减压精馏提浓过程采用并流双效精馏模式最为合适,过程能耗与设备投资都较低。此外,本文也通过了结果的比对阐明了不同形式双效精馏的差异。In this paper,the concentration process of N,N-dimethyl formamide(DMF)solution was simulated by the Aspen Plus process simulation software,the energy consumptions and equipment investments of different distillation process,single-effect distillation and multi-effect distillation,were estimated,and the results of three different double effect distillation models:parallel flow type,horizontal flow type and reverse flow type,were compared.According to the simulation results,the most appropriate process for the concentration of N,N-dimethyl formamide(DMF)solution is the parallel flow type double effect distillation.The differences between each double effect distillation models were also compared in this paper.

关 键 词：N N-二甲基甲酰胺(DMF) 单效精馏 双效精馏 流程模拟 能耗分析 

分 类 号：TQ[化学工程]