Dehydration of IPA-H2O mixture: Review of fundamentals and proposal of novel energy-efficient separation schemes Article Swipe
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· 2023
· Open Access
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· DOI: https://doi.org/10.1016/j.ces.2023.118672
· OA: W4353050752
According to the ongoing regulations, the need to identify green and economical production roots for fuels is of paramount importance. Unfortunately, biofuels production is often accompanied with the for-mation of water, that needs to be removed energy-efficiently. To achieve this separation, extractive and conventional heterogeneous azeotropic distillation have been extensively studied, but these solutions are usually high energy-demanding when non-negligible water content is involved. In view of introducing significant energy savings for the alcohol dehydration, this work focuses on the analysis of two innovative separation schemes: one based on heterogeneous azeotropic distillation with binary azeotrope and the other based on liquid-liquid extraction combined with distillation. For the sake of example, the proposed alternatives have been applied to the isopropanol-water mixture. The performances of the new configurations are assessed in terms of energy consumption and com-pared with conventional heterogeneous azeotropic distillation, proving the energy saving of the two pro-posed layouts.(c) 2023 Elsevier Ltd. All rights reserved.