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http://dx.doi.org/10.5762/KAIS.2018.19.6.88

Computer Simulation and Optimization Study on the Pressure-Swing Distillation of 1-propanol-benzene Mixture  

Park, Hoey Kyung (Department of Chemical Engineering, Kongju national university)
Cho, Jungho (Department of Chemical Engineering, Kongju national university)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.19, no.6, 2018 , pp. 88-97 More about this Journal
Abstract
Computer modeling and optimization works have been performed for the separation of the binary mixture of 1-propanol and benzene through a pressure-swing distillation. PRO/II with PRIVISION V10.0 at Schneider Electric company and NRTL liquid activity coefficient model were utilized. The sum of the total reboiler heat duties of the low-high and high-low pressure column configurations were compared. To minimize the utility consumptions, low column, and high column to obtain pure benzene at the top, the number of theoretical stages and optimal feed tray locations for each distillation column were determined and the reflux ratios for each distillation column were also adjusted. As a result of the optimization works, the sum of the total reboiler heat duties for the high-low and low-high pressure configurations were $3.10{\times}10^6kcal/h$ and $2.75{\times}10^6kcal/h$, respectively. In the case where heat integration was applied to low-high pressure configurations, 57.36 % of the total reboiler heat duties could be saved compared to the high-low pressure configurations.
Keywords
benzene; computer simulation; heat integration; optimization; pressure-swing distillation; 1-propanol;
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Times Cited By KSCI : 6  (Citation Analysis)
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