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Received November 25, 2019
Accepted January 31, 2020
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Separation of methanol-chloroform mixture using pressure-swing distillation: Modeling and optimization
Chemical Process Research Laboratory, Department of Chemical Engineering, Kongju National University, 275 Budae-dong, Cheonan-si, Seobuk-gu, Chungcheongnam-do 31080, Korea
jhcho@kongju.ac.kr
Korean Journal of Chemical Engineering, May 2020, 37(5), 850-865(16), 10.1007/s11814-020-0505-6
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Abstract
The separation of methanol-chloroform mixture, a minimum-boiling azeotrope, is performed using pressure- swing distillation process via process simulation. In this study, the steady-state optimization was carried out using PRO/II with PROVISION v.10. The two different column configurations (low-to-high pressure and high-to-low pressure) were compared wherein the positions of the low-pressure column and high-pressure column were operated interchangeably to attain an optimized design. Additionally, different heat-integration configurations (partial heat- and full heat-integration) were applied to lessen the overall utility consumption. It was determined that the low-to-high pressure column configuration provided a more optimized result for all heat-integrated systems as compared to high-tolow pressure column configuration. Application of heat-integration further decreases the cooling water and steam consumption by 38.86% and 35.74%, respectively, for partial heat-integrated system, and by 44.58% and 41.01%, respectively, for full heat-integrated system.
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References
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Dean JA, Physical properties. Lange’s handbook of chemistry, 15th Ed., McGraw-Hill, New York (1999).
Langston P, Hilal N, Shingfield S, Webb S, Chem. Eng. Process., 44(3), 345 (2005)
Wang Y, Bu G, Wang Y, Zhao Z, Zhu Z, Comput. Chem. Eng., 95, 97 (2016)
Hosgor E, Kucuk T, Oksal IN, Kaymak DB, Comput. Chem. Eng., 67, 166 (2014)
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Li QS, Cao L, Zhang YX, Liu PP, Wang BH, J. Chem. Eng. Data, 59(2), 234 (2014)
Hiaki T, Kurihara K, Kojima K, J. Chem. Eng. Data, 39(4), 714 (1994)
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Nagata I, J. Chem. Eng. Data, 7, 367 (1962)
Fulgueras AM, Poudel J, Kim DS, Cho J, Korean J. Chem. Eng., 33(1), 46 (2016)
Lee J, Cho J, Kim DM, Park S, Korean J. Chem. Eng., 28(2), 591 (2011)
Gao X, Yin X, Yang S, Yang D, Korean J. Chem. Eng., 36(1), 77 (2019)
Luyben WL, Chien I, Design and control of distillation systems for separating azeotropes, Hoboken, New Jersey (2010).
Luyben WL, Distillation design and control using aspen simulation, 2nd Ed., Hoboken, New Jersey (2013).
Cho J, Jeon JK, Korean J. Chem. Eng., 23(1), 1 (2006)
