Design and control of diphenyl carbonate reactive distillation process with thermally coupled and heat-integrated stages configuration. (2nd February 2019)

• Record Type: Journal Article
• Authors: Lee, Hao-Yeh; Chen, Chien-Ying; Chen, Jun-Lin; Alcántara-Avila, J. Rafael; Terasaki, Masataka; Sotowa, Ken-Ichiro; Horikawa, Toshihide
• Is Part Of: Computers & chemical engineering. Volume 121(2019)
• Page Start: 130
• Page End: 147
• Publication Date: 2019-02-02
• Subjects: DPC diphenyl carbonate -- DMC dimethyl carbonate -- PA phenyl acetate -- MA methyl acetate -- MPC Methyl Phenyl Carbonate -- RD reactive distillation -- RDC reactive distillation column -- SC separation column -- TCRD thermally coupled reactive distillation -- DPTCRD different pressure thermally coupled reactive distillation -- DWC Dividing Wall Columns -- HTCR thermally coupled reactive distillation -- RGA Relative Gain Array; Chemical engineering -- Data processing -- Periodicals; 660.0285
• DOI: 10.1016/j.compchemeng.2018.10.009
• Languages: English
• ISSNs: 0098-1354

Abstract

Highlights: A synergistic effect results from combining thermal coupling and heat integration. Heat-integrated thermally coupled reactive distillation attained 47% energy savings. A dual temperature control scheme can reject throughput change and DMC composition disturbances. Abstract: It has been extensively proven that thermally coupled distillation columns can effectively use less energy than their conventional counterparts. Similarly, the extension to reactive systems has also shown that thermally coupled reactive distillation columns can reduce the energy consumption in comparison with their conventional reactive distillation counterparts. This work aims to show that by realizing heat integration between thermally coupled columns at different pressure, further energy savings can be attained. The diphenyl carbonate production process has been taken up to show that there is a synergistic effect when thermally coupling and heat integration are combined in the same distillation sequence. The results showed that the proposed system could attain 47% energy savings in comparison with conventional a reactive distillation sequence while keeping good rejection of throughput and feed composition disturbances.