Dynamic simulation and analysis of control strategies of acetic acid dehydration tower in PTA plant

HUANG Xiuhui; WANG Jun; CUI Guomin

doi:10.11949/j.issn.0438-1157.20181090

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Dynamic simulation and analysis of control strategies of acetic acid dehydration tower in PTA plant

Process system engineering | 更新时间：2026-07-24

- Dynamic simulation and analysis of control strategies of acetic acid dehydration tower in PTA plant
- CIESC Journal Vol. 70, Issue 2, Pages: 625-633(2019)
- 作者机构：
  
  上海理工大学能源与动力工程学院，上海 200082
- 作者简介：
- 基金信息：
- DOI：10.11949/j.issn.0438-1157.20181090
  CLC： TQ 028
- Received：27 September 2018，
  
  Revised：2018-10-21，
  
  Online First：16 June 2020，
  
  Published：05 February 2019
- 稿件说明：
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黄秀辉, 王俊, 崔国民. PTA装置醋酸脱水塔的动态模拟及控制策略分析[J]. 化工学报, 2019, 70(2): 625-633

HUANG Xiuhui, WANG Jun, CUI Guomin. Dynamic simulation and analysis of control strategies of acetic acid dehydration tower in PTA plant[J]. CIESC Journal, 2019, 70(2): 625-633
黄秀辉, 王俊, 崔国民. PTA装置醋酸脱水塔的动态模拟及控制策略分析[J]. 化工学报, 2019, 70(2): 625-633 DOI： 10.11949/j.issn.0438-1157.20181090.

HUANG Xiuhui, WANG Jun, CUI Guomin. Dynamic simulation and analysis of control strategies of acetic acid dehydration tower in PTA plant[J]. CIESC Journal, 2019, 70(2): 625-633 DOI： 10.11949/j.issn.0438-1157.20181090.

摘要

以PTA装置醋酸脱水塔为研究对象，在该醋酸脱水塔的稳态模型的基础上，通过建立的平衡级动态数学模型以及补充设置好的动态参数，利用Aspen Plus软件建立好动态模型。以Aspen Dynamics软件为工具，用回流流量控制灵敏板温度，塔釜再沸器热负荷与进料流量

呈比例控制，模拟设计出了控制策略CS1。又为了保证在进料流量扰动时塔底醋酸浓度更加稳定，利用塔釜再沸器热负荷来控制塔釜醋酸浓度，设计出了控制策略CS2。将两种不同的控制策略对其动态响应进行分析比较，得出在相同目标条件下表现更优的控制策略，为实际生产和控制方案的设计提供方向和指导。

Abstract

The research object of this paper is acetic acid dehydration tower in PTA plant. The dynamic model was based on the dynamic mathematical model of the balance level and supplemented with the set dynamic parameters and the steady state model which was derived by using Aspen Plus. Next

the temperature of the sensitive stage was controlled by the reflux flow

and the column kettle reboiler duty was proportional to the feed flow

. Aspen Dynamics was used to simulate the control strategy CS1

which has the dynamic response analysis of the key index parameters in the acetic acid dehydration tower after disturbance of the feed flow. To ensure the concentration of acetic acid at the bottom of the tower is more stable when the feed flow is disturbed

the heat load of the bottom tank reboiler is used to control the acetic acid concentration in the tower

and the control strategy CS2 is designed. Two kinds of different control strategies were analyzed and compared to

their dynamic responses to obtain better control strategies under the same target conditions

which provided direction and guidance for the actual production and control strategy design.

关键词

Keywords

references

邢建良 , 赵均 , 蒋鹏飞 , 等 . PX氧化反应过程多变量预测控制 [J ] . 化工学报 , 2012 , 63 ( 9 ): 2726 - 2732 .

Xing J L , Zhao J , Jiang P F , et al . Multivariable predictive control of PX oxidation reaction process [J ] . CIESC Journal , 2012 , 63 ( 9 ): 2726 - 2732 .

黄定伟，李绍军 . 醋酸脱水非均相共沸精馏过程多稳态研究 [J ] . 计算机与应用化学 , 2010 , 27 ( 10 ): 001395-001398 .

Huang D W , Li S J . Multi-stable study on heterogeneous azeotropic distillation of acetic acid dehydration [J ] . Computer and Applied Chemistry , 2010 , 27 ( 10 ): 001395-001398 .

Widagdo S ， Seider W D . Journal review. Azeotropic distillation [J ] . AIChE Journal , 1996 , 42 ( 1 ): 96 - 130 .

胡松 , 张冰剑 , 佘志鸿 , 等 . 共沸蒸馏在化工生产中的应用与研究进展 [J ] . 化工进展 , 2010 , 29 ( 12 ): 2207 - 2219 .

Hu S , Zhang B J , She Z H , et al . Application and research progress of azeotropic distillation in chemical production [J ] . Chemical Industry and Engineering Progress , 2010 , 29 ( 12 ): 2207 - 2219 .

Kurooka T , Yamashita Y , Nishitani H , et al . Dynamic simulation and nonlinear control system design of a heterogeneous azeotropic distillation column [J ] . Computers & Chemical Engineering , 2000 , 24 ( 2 ): 887 - 892 .

Luyben W L . Control of the heterogeneous azeotropic n -butanol/water distillation system [J ] . Energ. Fuel , 2008 , 22 ( 6 ): 4249 - 4258 .

Wasylkiewicz S K , Kobylka L C ， Castillo F J L . Optimal design of complex azeotropic distillation columns [J ] . Chem. Eng. J ., 2000 , 79 ( 3 ): 219 - 227 .

邢建良 , 黄秀辉，袁渭康 . 工业醋酸脱水过程五元体系非均相共沸精馏的流程模拟 [J ] . 化工学报 , 2012 , 63 ( 9 ): 2681 - 2687 .

Xing J L , Huang X H , Yuan W K . Process simulation of heterogeneous azeotropic distillation of five-element system in industrial acetic acid dehydration process [J ] . CIESC Journal , 2012 , 63 ( 9 ): 2681 - 2687 .

Chien I L , Chen W H ， Chang T S . Operation and decoupling control of a heterogeneous azeotropic distillation column [J ] . Computers & Chemical Engineering , 2000 , 24 ( 2 ): 893 - 899 .

Wang L ， Xi L . Thermodynamic analysis and azeotropic distillation simulation for acetic acid-water-butyl acetate system [J ] . Journal of Chemical Industry & Engineering , 2005 , 56 ( 7 ): 1260 - 1266 .

Pham H N ， Doherty M F . Design and synthesis of azeotropic distillation（Ⅱ）：Residue curve maps [J ] . Chem. Eng. Sci ., 1990 , 45 ( 7 ): 1837 - 1843 .

Foucher E R , Doherty M F ， Malone M F . Automatic screening of entrainers for homogeneous azeotropic distillation [J ] . Industrial & Engineering Chemistry Research , 1991 , 30 ( 4 ): 760 - 772 .

Li C F . Dynamic simulation and analysis of industrial purified terephthalic acid solvent dehydration process [J ] . Chinese Journal of Chemical Engineering , 2011 , 19 ( 1 ): 89 - 96 .

Laroche L , Bekiaris N , Andersen H W , et al . The curious behavior of homogeneous azeotropic distillation—implications for entrainer selection [J ] . AIChE Journal , 1992 , 38 ( 9 ): 1309 - 1328 .

Skouras S , Kiva V ， Skogestad S . Feasible separations and entrainer selection rules for heteroazeotropic batch distillation [J ] . Chem. Eng. Sci ., 2005 , 60 ( 11 ): 2895 - 2909 .

曾根保 , 李绍军，钱锋 . 醋酸脱水系统的动态模拟及其控制 [J ] . 计算机与应用化学 , 2008 , 25 ( 5 ): 533 - 536 .

Zeng G B ， Li S J ， Qian F ． Dynamic simulation and control of acetic acid dehydration system [J ] . Computer and Applied Chemistry ， 2008 , 25 ( 5 ): 533 - 536 .

韩恺 , 赵均 , 朱豫才 , 等 . 一种在线辨识扰动模型的MPC控制器及其在溶剂脱水塔装置中的应用 [J ] . 化工学报 , 2008 , 59 ( 7 ): 1657 - 1664 .

Han K , Zhao J , Zhu Y C , et al . An MPC controller for online identification of disturbance model and its application in solvent dehydration tower device [J ] . Journal of Chemical Industry and Engineering（China） , 2008 , 59 ( 7 ): 1657 - 1664 .

位倩倩 , 马凤云 , 钟梅 , 等 . 醋酸脱水萃取精馏过程的控制研究 [J ] . 计算机与应用化学 , 2013 , 30 ( 5 ): 542 - 546 .

Wei Q Q , Ma F Y , Zhong M , et al . Study on the control of acetic acid dehydration extractive distillation [J ] . Computer and Applied Chemistry , 2013 , 30 ( 5 ): 542 - 546 .

Wang S J ， Huang K . Design and control of acetic acid dehydrat ion system via heterogeneous azeotropic distillation using p -xylene as an entrainer [J ] . Chemical Engineering & Processing Process Intensification , 2012 , 60 ( 8 ): 65 - 76 .

黄秀辉 . 工业非均相共沸精馏醋酸脱水过程的建模与优化 [D ] . 上海：华东理工大学 , 2014 .

Huang X H . Modeling and optimization of acetic acid dehydration process in industrial heterogeneous azeotropic distillation [D ] . Shanghai : East China University of Science and Technology , 2014 .

Huang X H , Zhong W M , Peng C J , et al . Isobaric vapor-liquid equilibrium of binary systems: p -xylene + (acetic acid, methyl acetate and n -propyl acetate) and methyl acetate + n -pro pyl acetate in an acetic acid dehydration process [J ] . Chinese Journal of Chemical Engineering , 2013 , 21 ( 2 ): 171 - 176 .

Simonetty J , Yee D ， Tassios D . Prediction and correlation of liquid-liquid equilibriums [J ] . Industrial & Engineering Chemistry Process Design & Development , 1982 , 21 ( 1 ): 1640 - 1643 .

Block U ， Hegner B . Development and application of a simulation model for three-phase distillation [J ] . AIChE Journal , 1976 , 22 ( 3 ): 582 - 589 .

周少华，唐麟书 . 精馏塔MESH方程组求解的一种双重迭代法 [J ] . 化工学报 , 1992 , 43 ( 6 ): 705 - 711 .

Zhou S H , Tang L S . A double iterative method for solving the MESH equations of distillation column [J ] . Journal of Chemical Industry and Engineering（China） , 1992 , 43 ( 6 ): 705 - 711 .

Goldstein R P ， Stanfield R B . Flexible method for the solution of distillation design problems using the Newton-Raphson technique [J ] . Industrial & Engineering Chemistry Process Design & Development , 1970 , 9 ( 1 ): 78 - 84 .

Naphtali L M ， Sandholm D P . Multicomponent separation calculations by linearization [J ] . AIChE Journal , 1971 , 17 ( 1 ): 148 - 153 .

尚长军 . 溶剂脱水塔的建模与优化研究 [D ] . 杭州：浙江大学 , 2003 .

Shang C J . Study on Modeling and optimization of solvent dehydration tower [D ] . Hangzhou : Zhejiang University , 2003 .

邱光佑 , 丁芳 , 李群生 , 等 . 导向筛板塔在醋酸精馏中的研究与应用 [J ] . 化工进展 , 2005 , 24 ( S1 ): 118 - 120 .

Qiu G Y , Ding F , Li Q S , et al . Research and application of guided sieve tower in acetic acid distillation [J ] . Chemical Industry and Engineering Progress , 2005 , 24 ( S1 ): 118 - 120 .

刘立新 , 陈梦琪 , 刘育良 , 等 . 共沸精馏隔壁塔与萃取精馏隔壁塔的控制研究 [J ] . 化工进展 , 2017 , 36 ( 2 ): 756 - 765 .

Liu L X , Chen M Q , Liu Y L , et al . Study on the control of azeotropic dividing bulkhead towers and extractive dividing bulkhead towers [J ] . Chemical Industry and Engineering Progress , 2017 , 36 ( 2 ): 756 - 765 .

Li Q , Guan W , Wang L , et al . Dynamic simulation and control of a complete industrial acetic acid solvent dehydration system in purified terephthalic acid production [J ] . Industrial & Engineering Chemistry Research , 2015 , 54 ( 45 ): 11330 - 11343 .

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