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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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2
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Guang B, Zhang W, Zhang Y, Xiao Y, Liu Y. Mild and highly selective hydrogenation of cyclohexyl acetate to cyclohexanol over Cu( i) coordinated amino-functionalized poly(ionic liquid)s. Catal Sci Technol 2022. [DOI: 10.1039/d2cy01383e] [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
Cu(i) coordinated amino-functionalized poly(ionic liquid)s exhibited an unprecedented performance for mild and highly selective hydrogenation of esters.
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Affiliation(s)
- Binxiong Guang
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, PR China
| | - Wei Zhang
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, PR China
| | - Yiwei Zhang
- Henan Engineering Research Center of Resource & Energy Recovery from Waste, Henan University, Kaifeng 475004, PR China
| | - Yahui Xiao
- Henan Engineering Research Center of Resource & Energy Recovery from Waste, Henan University, Kaifeng 475004, PR China
| | - Yong Liu
- Henan Key Laboratory of Polyoxometalate Chemistry, College of Chemistry and Chemical Engineering, Henan University, Kaifeng 475004, PR China
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3
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Qi Y, Song T, Li K, Wu P, Zhu Z, Li X. Synthesis of cyclohexanol and ethanol via the hydrogenation of cyclohexyl acetate with Cu 2Zn x/Al 2O 3 catalysts. Catal Sci Technol 2021. [DOI: 10.1039/d1cy01355f] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
The Cu2Zn1.25/Al2O3 catalyst exhibited 93.9% conversion and 97.2% selectivity to ethanol with 97.1% selectivity to cyclohexanol for the hydrogenation of cyclohexyl acetate due to the abundant weak acid sites and the highest ratio of Cu+/(Cu0 + Cu+).
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Affiliation(s)
- Yuanyuan Qi
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Rd, Shanghai 200062, China
| | - Tongyang Song
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Rd, Shanghai 200062, China
| | - Kefan Li
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Rd, Shanghai 200062, China
| | - Peng Wu
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Rd, Shanghai 200062, China
| | - Zhirong Zhu
- Department of Chemistry, Tongji University, 1239 Siping Road, Shanghai 200092, China
| | - Xiaohong Li
- Shanghai Key Laboratory of Green Chemistry and Chemical Processes, School of Chemistry and Molecular Engineering, East China Normal University, 3663 North Zhongshan Rd, Shanghai 200062, China
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