SCI和EI收录∣中国化工学会会刊

›› 2016, Vol. 24 ›› Issue (10): 1360-1368.DOI: 10.1016/j.cjche.2016.05.023

• Separation Science and Engineering • Previous Articles     Next Articles

Reactive dividing wall column for hydrolysis of methyl acetate: Design and control

Lumin Li1, Lanyi Sun1, Delian Yang2, Wang Zhong1, Yi Zhu1, Yuanyu Tian1   

  1. 1 State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao 266580, China;
    2 Synopsys, Inc., 690 East Middlefield Road, Mountain View, CA 94043, USA
  • Received:2015-11-11 Revised:2016-04-05 Online:2016-11-19 Published:2016-10-28
  • Supported by:
    Supported by the National Natural Science Foundation of China (No. 21276279; No. 21476261) and the Fundamental Research Funds for the Central Universities (No. 14CX05030A; No. 15CX06042A).

Reactive dividing wall column for hydrolysis of methyl acetate: Design and control

Lumin Li1, Lanyi Sun1, Delian Yang2, Wang Zhong1, Yi Zhu1, Yuanyu Tian1   

  1. 1 State Key Laboratory of Heavy Oil Processing, China University of Petroleum, Qingdao 266580, China;
    2 Synopsys, Inc., 690 East Middlefield Road, Mountain View, CA 94043, USA
  • 通讯作者: Lanyi Sun,E-mail address:sunlanyi@upc.edu.cn.
  • 基金资助:
    Supported by the National Natural Science Foundation of China (No. 21276279; No. 21476261) and the Fundamental Research Funds for the Central Universities (No. 14CX05030A; No. 15CX06042A).

Abstract: Reactive distillation and dividing wall column distillation are two kinds of effective separation technologies, and their integrated configuration, reactive dividing wall column (RDWC), presents attractive advantages. In this study, the rigorous simulation of RDWC for methyl acetate hydrolysis is performed, and sensitivity analysis is conducted to obtain the minimum reboiler duty. Then a comparison is made between the conventional process and RDWC process, and it shows that 20.1% energy savings can be achieved by RDWC process. In addition, the dynamic characteristic of RDWC is studied and an effective control strategy is proposed. The simple PI control scheme with three temperature loops can obtain reasonable control performance and maintain products at desired purities. It is proved that this RDWC process is an energy efficiency alternative with good controllability.

Key words: Reactive dividing wall column, Methyl acetate, Hydrolysis, Design, Control

摘要: Reactive distillation and dividing wall column distillation are two kinds of effective separation technologies, and their integrated configuration, reactive dividing wall column (RDWC), presents attractive advantages. In this study, the rigorous simulation of RDWC for methyl acetate hydrolysis is performed, and sensitivity analysis is conducted to obtain the minimum reboiler duty. Then a comparison is made between the conventional process and RDWC process, and it shows that 20.1% energy savings can be achieved by RDWC process. In addition, the dynamic characteristic of RDWC is studied and an effective control strategy is proposed. The simple PI control scheme with three temperature loops can obtain reasonable control performance and maintain products at desired purities. It is proved that this RDWC process is an energy efficiency alternative with good controllability.

关键词: Reactive dividing wall column, Methyl acetate, Hydrolysis, Design, Control