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Hu Y, Wang L, Lu J, Ding L, Zhang G, Zhang Z, Tang J, Cui M, Chen X, Qiao X. Novel Reactive Distillation Process for Cyclohexyl Acetate Production: Design, Optimization, and Control. ACS OMEGA 2023; 8:13192-13201. [PMID: 37065013 PMCID: PMC10099445 DOI: 10.1021/acsomega.3c00469] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/23/2023] [Accepted: 03/20/2023] [Indexed: 06/19/2023]
Abstract
A side-reactor column (SRC) configuration, comprising a vacuum column coupled with atmospheric side reactors, is proposed to overcome the thermodynamic restriction in the esterification of cyclohexene with acetic acid to produce cyclohexyl acetate. Meantime, this configuration can avoid the utilization of the high-pressure steam and provide enough zone for catalyst loading. In order to obtain the minimum total annual cost (TAC), the process is optimized by a mixed-integer nonlinear programming optimization method based on the improved bat algorithm. The results indicate that the optimized SRC configuration saves about 44.81% of the TAC compared to the reactive distillation process. Based on the optimized SRC process, dynamic control is carried out. The dual-point temperature and temperature-composition control structures are proposed to reject throughput and feed composition disturbances. The dynamic performances demonstrate that the temperature-composition control structure is better in maintaining product purity.
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Affiliation(s)
- Yabo Hu
- State
Key Laboratory of Materials-Oriented Chemical Engineering, College
of Chemical Engineering, Nanjing Tech University, Nanjing 211816, PR China
| | - Le Wang
- State
Key Laboratory of Materials-Oriented Chemical Engineering, College
of Chemical Engineering, Nanjing Tech University, Nanjing 211816, PR China
| | - Jiawei Lu
- State
Key Laboratory of Materials-Oriented Chemical Engineering, College
of Chemical Engineering, Nanjing Tech University, Nanjing 211816, PR China
| | - Lianghui Ding
- School
of Environmental Engineering, Nanjing Institute
of Technology, Nanjing, Jiangsu 211167, China
| | - Guowen Zhang
- State
Key Laboratory of Materials-Oriented Chemical Engineering, College
of Chemical Engineering, Nanjing Tech University, Nanjing 211816, PR China
| | - Zhuxiu Zhang
- State
Key Laboratory of Materials-Oriented Chemical Engineering, College
of Chemical Engineering, Nanjing Tech University, Nanjing 211816, PR China
| | - Jihai Tang
- State
Key Laboratory of Materials-Oriented Chemical Engineering, College
of Chemical Engineering, Nanjing Tech University, Nanjing 211816, PR China
| | - Mifen Cui
- State
Key Laboratory of Materials-Oriented Chemical Engineering, College
of Chemical Engineering, Nanjing Tech University, Nanjing 211816, PR China
| | - Xian Chen
- State
Key Laboratory of Materials-Oriented Chemical Engineering, College
of Chemical Engineering, Nanjing Tech University, Nanjing 211816, PR China
| | - Xu Qiao
- State
Key Laboratory of Materials-Oriented Chemical Engineering, College
of Chemical Engineering, Nanjing Tech University, Nanjing 211816, PR China
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Han C, Wang R, Shu C, Li X, Li H, Gao X. The transesterification of ethylene glycol and 1,2-butanediol with dimethyl carbonate: reaction network and kinetic modeling. REACT CHEM ENG 2022. [DOI: 10.1039/d2re00289b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The reaction network for the reaction of ethylene glycol and 1,2-butanediol with dimethyl carbonate was investigated and kinetic parameters were obtained via experiments.
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Affiliation(s)
- Chunrui Han
- School of Chemical Engineering and Technology, National Engineering Research Center of Distillation Technology, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin University, Tianjin 300072, P. R. China
| | - Rui Wang
- School of Chemistry & Chemical Engineering, Tianjin University of Technology, Tianjin 300384, P. R. China
| | - Chang Shu
- School of Chemical Engineering and Technology, National Engineering Research Center of Distillation Technology, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin University, Tianjin 300072, P. R. China
| | - Xingang Li
- School of Chemical Engineering and Technology, National Engineering Research Center of Distillation Technology, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin University, Tianjin 300072, P. R. China
| | - Hong Li
- School of Chemical Engineering and Technology, National Engineering Research Center of Distillation Technology, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin University, Tianjin 300072, P. R. China
| | - Xin Gao
- School of Chemical Engineering and Technology, National Engineering Research Center of Distillation Technology, Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin University, Tianjin 300072, P. R. China
- Haihe Laboratory of Sustainable Chemical Transformations, Tianjin 300192, China
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