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

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 pe...

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Bibliographic Details
Published in:Chinese journal of chemical engineering 2016-10, Vol.24 (10), p.1360-1368
Main Authors: Li, Lumin, Sun, Lanyi, Yang, Delian, Zhong, Wang, Zhu, Yi, Tian, Yuanyu
Format: Article
Language:English
Subjects:
Control
Design
Hydrolysis
Methyl acetate
Reactive dividing wall column
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Summary: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.
ISSN:1004-9541
2210-321X
DOI:10.1016/j.cjche.2016.05.023