Automatic identification of the optimal distillation sequence based on its integration with reactor. (2nd November 2019)

• Record Type: Journal Article
• Authors: Yin, Changfang; Liu, Guilian
• Is Part Of: Chemical engineering science. Volume 207(2019)
• Page Start: 424
• Page End: 440
• Publication Date: 2019-11-02
• Subjects: Distillation sequence -- Reaction -- Non-key components -- Optimization -- Integration; Chemical engineering -- Periodicals; Génie chimique -- Périodiques; Chemical engineering; Periodicals; Electronic journals; 660
• DOI: 10.1016/j.ces.2019.06.021
• Languages: English
• ISSNs: 0009-2509

Abstract

Highlights: A simple and effective method is proposed for identifying the optimal distillation sequence. The integration between reaction and separation system is considered. Procedure is developed for automatically identifying the optimal distillation sequence. The proposed method can be used in the preliminary design of chemical process. The method is suitable for systems with simple columns performing sharp splits of ideal mixtures. Abstract: A systematical method is proposed for integrating the reaction and separation system and automatically identifying the optimal distillation sequence. Based on the regularity of each component as a non-key component, the non-key component matrix is constructed to illustrate the difference between distillation sequences. With the marginal minimum vapor rate of non-key components used to evaluate distillation sequences and the relation between reactor and distillation sequences considered, procedure is developed for automatically identifying the optimal distillation sequence and reactor parameters. The proposed method can be used for systems with simple columns performing sharp splits and the separated mixture can be taken as ideal mixtures. The reaction and distillation systems of the propylene oxide production process and styrene production process are analyzed, and the optimal distillation sequences generated by the proposed method are in good agreement with that identified by the systematical analyzation and rigorous simulation.