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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This work was supported by the research grant of the Kongju National University in 2019.
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Galanido, R.J., Kim, D.S. & Cho, J. Separation of methanol-chloroform mixture using pressure-swing distillation: Modeling and optimization. Korean J. Chem. Eng. 37, 850–865 (2020). https://doi.org/10.1007/s11814-020-0505-6
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DOI: https://doi.org/10.1007/s11814-020-0505-6