摘要
运用Aspen Plus的RadFrac精馏模块,选择NRTL活度系数方程和Hayden-O’Connell逸度系数方程的热力学模型对共沸精馏分离丙炔醇-丁炔二醇-水体系进行了模拟计算,计算值与工业数据吻合。采用醋酸乙烯酯为夹带剂,分析了原料进料位置、回流比、夹带剂进料位置、夹带剂进料比等参数变化对该体系共沸精馏分离效果与能耗的影响,并进行了参数优化。结果表明,原工艺经参数优化后,可较大程度降低能耗,同时提高分离效果。
Using the RadFrac modules of Aspen Plus,thermodynamic models of NRTL equation for activity coefficient and Hayden-O＇ Connell equation for fugacity coefficient are chosen to simulate the azeotrope distillation for separating propynol and butynediol from water.The simulation result is identical with industrial data.The influences of operating parameters,such as feed stage,reflux ratio,entrainer feed stage,ratio of entrainer to feed,on the separation efficiency and energy consumption of azeotropic distillation are investigated.The results indicate that the optimization can greatly reduce energy consumption and improve separation efficiency than original process.
出处
《现代化工》
CAS
CSCD
北大核心
2014年第3期139-142,共4页
Modern Chemical Industry
