Simulation and Analysis on Multiple Steady States of an Industrial Acetic Acid Dehydration System

›› 2011, Vol. 19 ›› Issue (6): 983-989.

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Simulation and Analysis on Multiple Steady States of an Industrial Acetic Acid Dehydration System

LI Shaojun, HUANG Dingwei

Key Laboratory of Advanced Control and Optimization for Chemical Processes (East China University of Science and Technology), Ministry of Education, Shanghai 200237, China

Received:2010-09-15 Revised:2011-06-07 Online:2012-04-24 Published:2011-12-28
Supported by:
Supported by the National Natural Science Foundation of China (20976048);Shanghai Leading Academic Discipline Project (B504)

Simulation and Analysis on Multiple Steady States of an Industrial Acetic Acid Dehydration System

李绍军, 黄定伟

Key Laboratory of Advanced Control and Optimization for Chemical Processes (East China University of Science and Technology), Ministry of Education, Shanghai 200237, China

通讯作者: LI Shaojun, E-mail: lishaojun@ecust.edu.cn
基金资助:
Supported by the National Natural Science Foundation of China (20976048);Shanghai Leading Academic Discipline Project (B504)

Abstract

Abstract: In this work, an industrial acetic acid dehydration system via heterogeneous azeotropic distillation is simulated by Aspen Plus software. Residue curves are used to analyze the distillating behavior, and appropriate operating region of the system is determined. Based on steady states simulation, a sensitivity analysis is carried out to detect the output multiple steady states in the system. Different solution branches are observered when the flow rates of the feed stream and the organic reflux stream are selected as manipulated variables. The performance of the column under different steady states is different. A method is proposed to achieve the desired steady state.

Key words: acetic acid dehydration, heterogeneous azeotropic distillation, residue curve, multiple steady states

摘要： In this work, an industrial acetic acid dehydration system via heterogeneous azeotropic distillation is simulated by Aspen Plus software. Residue curves are used to analyze the distillating behavior, and appropriate operating region of the system is determined. Based on steady states simulation, a sensitivity analysis is carried out to detect the output multiple steady states in the system. Different solution branches are observered when the flow rates of the feed stream and the organic reflux stream are selected as manipulated variables. The performance of the column under different steady states is different. A method is proposed to achieve the desired steady state.

关键词: acetic acid dehydration, heterogeneous azeotropic distillation, residue curve, multiple steady states

LI Shaojun, HUANG Dingwei. Simulation and Analysis on Multiple Steady States of an Industrial Acetic Acid Dehydration System[J]. , 2011, 19(6): 983-989.

李绍军, 黄定伟. Simulation and Analysis on Multiple Steady States of an Industrial Acetic Acid Dehydration System[J]. , 2011, 19(6): 983-989.

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Simulation and Analysis on Multiple Steady States of an Industrial Acetic Acid Dehydration System

Simulation and Analysis on Multiple Steady States of an Industrial Acetic Acid Dehydration System

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