Chia, Dian Ning;
Duanmu, Fanyi;
Sorensen, Eva;
(2023)
Single- and multi-objective optimisation of hybrid distillation-pervaporation and dividing wall column structures.
Chemical Engineering Research and Design
, 194
pp. 280-305.
10.1016/j.cherd.2023.04.041.
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Abstract
The separation of azeotropic mixtures is often energy intensive, thus process intensification (PI) becomes an attractive route to enhance energy efficiency. Two of the most commonly used separation intensifications are dividing wall columns and hybrid distillation-membrane processes. In this work, three typical hybrid distillation structures, distillation followed by pervaporation (D-P), pervaporation followed by distillation (P-D), and distillation followed by pervaporation then by distillation (D-P-D), are considered and compared with a hybrid dividing wall column (H-DWC) structure, which is a highly integrated process combining a dividing wall column and a pervaporation membrane network. The four structures are compared by both single-objective and multi-objective optimisation. It is shown that the D-P-D and H-DWC structures require significantly lower total annualized costs than the other two designs due to requiring smaller membrane area, as these two structures use the membrane only to help the mixture composition cross the azeotropic point.
Type: | Article |
---|---|
Title: | Single- and multi-objective optimisation of hybrid distillation-pervaporation and dividing wall column structures |
Open access status: | An open access version is available from UCL Discovery |
DOI: | 10.1016/j.cherd.2023.04.041 |
Publisher version: | https://doi.org/10.1016/j.cherd.2023.04.041 |
Language: | English |
Additional information: | © 2023 The Author(s). Published by Elsevier Ltd on behalf of Institution of Chemical Engineers. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/). |
Keywords: | Hybrid distillation, Dividing wall column, Membrane, Optimisation, Multi-objective |
UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Engineering Science > Dept of Chemical Engineering |
URI: | https://discovery.ucl.ac.uk/id/eprint/10169495 |
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