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Patil GN, Gnanasundaram N. Energy-saving investigation of vacuum reactive distillation for the production of ethyl acetate. CHEMICAL PRODUCT AND PROCESS MODELING 2022. [DOI: 10.1515/cppm-2021-0060] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Ethyl acetate (EtAc) reactive distillation (RD) configurations often use atmospheric pressure, and this operating pressure can be reduced further to conserve energy based on the condenser cooling water temperature. Using the Aspen Plus simulator, two proposed configurations, RD column with stripper and pressure swing reactive distillation (PSRD), were simulated at lower operating pressure. The impact of RD column operating pressure on total energy usage and total annual cost (TAC) was studied. All design parameters were optimized using sequential iterative optimization procedures and sensitivity analysis to minimize the energy cost while maintaining the required product purity at 99.99%. The simulation results showed that the RD column with a stripper is better than PSRD with a saving of 23.17% in TAC and 31.53% in the specific cost of EtAc per kg. Compared to literature results, the proposed configurations have lower reboiler duty requirements and lower cost per kg of EtAc.
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Affiliation(s)
- Ganesh N. Patil
- Mechanical & Industrial Engineering Department , College of Engineering, National University of Science and Technology , Muscat , Oman
- School of Chemical Engineering, VIT University , Vellore , Tamil Nadu 632014 , India
| | - Nirmala Gnanasundaram
- School of Chemical Engineering, VIT University , Vellore , Tamil Nadu 632014 , India
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Li C, Duan C, Fang J, Li H. Process intensification and energy saving of reactive distillation for production of ester compounds. Chin J Chem Eng 2019. [DOI: 10.1016/j.cjche.2018.10.007] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Chen H, Huang K, Liu W, Zhang L, Wang S, Wang SJ. Enhancing mass and energy integration by external recycle in reactive distillation columns. AIChE J 2012. [DOI: 10.1002/aic.13975] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Haisheng Chen
- College of Information Science and Technology; Beijing University of Chemical Technology; Beijing; 100029; P. R. China
| | - Kejin Huang
- College of Information Science and Technology; Beijing University of Chemical Technology; Beijing; 100029; P. R. China
| | - Wei Liu
- College of Information Science and Technology; Beijing University of Chemical Technology; Beijing; 100029; P. R. China
| | - Liang Zhang
- College of Information Science and Technology; Beijing University of Chemical Technology; Beijing; 100029; P. R. China
| | - Shaofeng Wang
- College of Information Science and Technology; Beijing University of Chemical Technology; Beijing; 100029; P. R. China
| | - San-Jang Wang
- Dept. of Chemical and Material Engineering; Ta Hwa Institute of Technology; Chiunglin; Hsinchu; 307; Taiwan
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