Comparison of Extractive and Heteroazeotropic Distillation of High-Boiling Aqueous Mixtures
The processes of extractive distillation and heteroazeotropic distillation of mixtures containing water and a high-boiling component (propionic acid, acetic acid, 1-methoxy-2-propanol) are compared. Entrainers declared in the literature as effective agents for these processes were selected as separa...
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| Format: | Article |
| Language: | English |
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MDPI AG
2022-10-01
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| Series: | ChemEngineering |
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| Online Access: | https://www.mdpi.com/2305-7084/6/5/83 |
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| author | Anastasia V. Frolkova Alla K. Frolkova Ivan S. Gaganov |
| author_facet | Anastasia V. Frolkova Alla K. Frolkova Ivan S. Gaganov |
| author_sort | Anastasia V. Frolkova |
| collection | DOAJ |
| description | The processes of extractive distillation and heteroazeotropic distillation of mixtures containing water and a high-boiling component (propionic acid, acetic acid, 1-methoxy-2-propanol) are compared. Entrainers declared in the literature as effective agents for these processes were selected as separating agents. A distillation process simulation in AspenPlus V.11.0 is made. Parametric optimization is carried out and the column operation parameters (number of stages, feed stage, reflux ratio) that meet the minimum energy consumptions and ensure the production of marketable substances are determined. It is shown that the process of heteroazeotropic distillation is more energy-efficient compared to extractive distillation by more than 50%, due to the introduction of an entrainer that lowers the boiling point of process. In addition, in some cases (acetic acid + water with vinyl acetate, propionic acid + water with hexane, cyclohexane, cyclohexanol), one of the columns in the separation flowsheet can be abandoned due to the significantly limited mutual solubility. |
| first_indexed | 2024-03-09T20:28:08Z |
| format | Article |
| id | doaj.art-5551fd779b184eb9a34b102088f8c5e9 |
| institution | Directory Open Access Journal |
| issn | 2305-7084 |
| language | English |
| last_indexed | 2024-03-09T20:28:08Z |
| publishDate | 2022-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | ChemEngineering |
| spelling | doaj.art-5551fd779b184eb9a34b102088f8c5e92023-11-23T23:29:39ZengMDPI AGChemEngineering2305-70842022-10-01658310.3390/chemengineering6050083Comparison of Extractive and Heteroazeotropic Distillation of High-Boiling Aqueous MixturesAnastasia V. Frolkova0Alla K. Frolkova1Ivan S. Gaganov2M.V. Lomonosov Institute of Fine Chemical Technology, Department of Chemistry and Technology of Basic Organic Synthesis, MIREA—Russian Technological University, Vernadskogo Prospect 86, Moscow 119571, RussiaM.V. Lomonosov Institute of Fine Chemical Technology, Department of Chemistry and Technology of Basic Organic Synthesis, MIREA—Russian Technological University, Vernadskogo Prospect 86, Moscow 119571, RussiaM.V. Lomonosov Institute of Fine Chemical Technology, Department of Chemistry and Technology of Basic Organic Synthesis, MIREA—Russian Technological University, Vernadskogo Prospect 86, Moscow 119571, RussiaThe processes of extractive distillation and heteroazeotropic distillation of mixtures containing water and a high-boiling component (propionic acid, acetic acid, 1-methoxy-2-propanol) are compared. Entrainers declared in the literature as effective agents for these processes were selected as separating agents. A distillation process simulation in AspenPlus V.11.0 is made. Parametric optimization is carried out and the column operation parameters (number of stages, feed stage, reflux ratio) that meet the minimum energy consumptions and ensure the production of marketable substances are determined. It is shown that the process of heteroazeotropic distillation is more energy-efficient compared to extractive distillation by more than 50%, due to the introduction of an entrainer that lowers the boiling point of process. In addition, in some cases (acetic acid + water with vinyl acetate, propionic acid + water with hexane, cyclohexane, cyclohexanol), one of the columns in the separation flowsheet can be abandoned due to the significantly limited mutual solubility.https://www.mdpi.com/2305-7084/6/5/83extractive distillationheteroazeotropic distillationentrainerhigh-boiling componentsbinary mixtures |
| spellingShingle | Anastasia V. Frolkova Alla K. Frolkova Ivan S. Gaganov Comparison of Extractive and Heteroazeotropic Distillation of High-Boiling Aqueous Mixtures ChemEngineering extractive distillation heteroazeotropic distillation entrainer high-boiling components binary mixtures |
| title | Comparison of Extractive and Heteroazeotropic Distillation of High-Boiling Aqueous Mixtures |
| title_full | Comparison of Extractive and Heteroazeotropic Distillation of High-Boiling Aqueous Mixtures |
| title_fullStr | Comparison of Extractive and Heteroazeotropic Distillation of High-Boiling Aqueous Mixtures |
| title_full_unstemmed | Comparison of Extractive and Heteroazeotropic Distillation of High-Boiling Aqueous Mixtures |
| title_short | Comparison of Extractive and Heteroazeotropic Distillation of High-Boiling Aqueous Mixtures |
| title_sort | comparison of extractive and heteroazeotropic distillation of high boiling aqueous mixtures |
| topic | extractive distillation heteroazeotropic distillation entrainer high-boiling components binary mixtures |
| url | https://www.mdpi.com/2305-7084/6/5/83 |
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