A Simplified Kinetic Modeling of CO<sub>2</sub> Absorption into Water and Monoethanolamine Solution in Hollow-Fiber Membrane Contactors
The absorption of CO<sub>2</sub> from CO<sub>2</sub>-N<sub>2</sub> gas mixtures using water and monoethanolamine (MEA) solution in polypropylene (PP) hollow-fiber membrane contactors was experimentally and theoretically examined. Gas was flowed through the lumen o...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-05-01
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| Series: | Membranes |
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| Online Access: | https://www.mdpi.com/2077-0375/13/5/494 |
| _version_ | 1827740775341883392 |
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| author | Mai Lien Tran Chi Hieu Nguyen Kuan-Yan Chu Ruey-Shin Juang |
| author_facet | Mai Lien Tran Chi Hieu Nguyen Kuan-Yan Chu Ruey-Shin Juang |
| author_sort | Mai Lien Tran |
| collection | DOAJ |
| description | The absorption of CO<sub>2</sub> from CO<sub>2</sub>-N<sub>2</sub> gas mixtures using water and monoethanolamine (MEA) solution in polypropylene (PP) hollow-fiber membrane contactors was experimentally and theoretically examined. Gas was flowed through the lumen of the module, whereas the absorbent liquid was passed counter-currently across the shell. Experiments were carried out under various gas- and liquid-phase velocities as well as MEA concentrations. The effect of pressure difference between the gas and liquid phases on the flux of CO<sub>2</sub> absorption in the range of 15–85 kPa was also investigated. A simplified mass balance model that considers non-wetting mode as well as adopts the overall mass-transfer coefficient evaluated from absorption experiments was proposed to follow the present physical and chemical absorption processes. This simplified model allowed us to predict the effective length of the fiber for CO<sub>2</sub> absorption, which is crucial in selecting and designing membrane contactors for this purpose. Finally, the significance of membrane wetting could be highlighted by this model while using high concentrations of MEA in the chemical absorption process. |
| first_indexed | 2024-03-11T03:30:09Z |
| format | Article |
| id | doaj.art-33e4b770866a4b36a7d3304dbf068678 |
| institution | Directory Open Access Journal |
| issn | 2077-0375 |
| language | English |
| last_indexed | 2024-03-11T03:30:09Z |
| publishDate | 2023-05-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Membranes |
| spelling | doaj.art-33e4b770866a4b36a7d3304dbf0686782023-11-18T02:24:13ZengMDPI AGMembranes2077-03752023-05-0113549410.3390/membranes13050494A Simplified Kinetic Modeling of CO<sub>2</sub> Absorption into Water and Monoethanolamine Solution in Hollow-Fiber Membrane ContactorsMai Lien Tran0Chi Hieu Nguyen1Kuan-Yan Chu2Ruey-Shin Juang3Institute of Environmental Science, Engineering and Management, Industrial University of Ho Chi Minh City, Ho Chi Minh City 700000, VietnamInstitute of Environmental Science, Engineering and Management, Industrial University of Ho Chi Minh City, Ho Chi Minh City 700000, VietnamDepartment of Chemical and Materials Engineering, Chang Gung University, Guishan, Taoyuan 33302, TaiwanDepartment of Chemical and Materials Engineering, Chang Gung University, Guishan, Taoyuan 33302, TaiwanThe absorption of CO<sub>2</sub> from CO<sub>2</sub>-N<sub>2</sub> gas mixtures using water and monoethanolamine (MEA) solution in polypropylene (PP) hollow-fiber membrane contactors was experimentally and theoretically examined. Gas was flowed through the lumen of the module, whereas the absorbent liquid was passed counter-currently across the shell. Experiments were carried out under various gas- and liquid-phase velocities as well as MEA concentrations. The effect of pressure difference between the gas and liquid phases on the flux of CO<sub>2</sub> absorption in the range of 15–85 kPa was also investigated. A simplified mass balance model that considers non-wetting mode as well as adopts the overall mass-transfer coefficient evaluated from absorption experiments was proposed to follow the present physical and chemical absorption processes. This simplified model allowed us to predict the effective length of the fiber for CO<sub>2</sub> absorption, which is crucial in selecting and designing membrane contactors for this purpose. Finally, the significance of membrane wetting could be highlighted by this model while using high concentrations of MEA in the chemical absorption process.https://www.mdpi.com/2077-0375/13/5/494kinetic modelingCO<sub>2</sub> absorptionmonoethanolaminehollow-fiber membrane contactors |
| spellingShingle | Mai Lien Tran Chi Hieu Nguyen Kuan-Yan Chu Ruey-Shin Juang A Simplified Kinetic Modeling of CO<sub>2</sub> Absorption into Water and Monoethanolamine Solution in Hollow-Fiber Membrane Contactors Membranes kinetic modeling CO<sub>2</sub> absorption monoethanolamine hollow-fiber membrane contactors |
| title | A Simplified Kinetic Modeling of CO<sub>2</sub> Absorption into Water and Monoethanolamine Solution in Hollow-Fiber Membrane Contactors |
| title_full | A Simplified Kinetic Modeling of CO<sub>2</sub> Absorption into Water and Monoethanolamine Solution in Hollow-Fiber Membrane Contactors |
| title_fullStr | A Simplified Kinetic Modeling of CO<sub>2</sub> Absorption into Water and Monoethanolamine Solution in Hollow-Fiber Membrane Contactors |
| title_full_unstemmed | A Simplified Kinetic Modeling of CO<sub>2</sub> Absorption into Water and Monoethanolamine Solution in Hollow-Fiber Membrane Contactors |
| title_short | A Simplified Kinetic Modeling of CO<sub>2</sub> Absorption into Water and Monoethanolamine Solution in Hollow-Fiber Membrane Contactors |
| title_sort | simplified kinetic modeling of co sub 2 sub absorption into water and monoethanolamine solution in hollow fiber membrane contactors |
| topic | kinetic modeling CO<sub>2</sub> absorption monoethanolamine hollow-fiber membrane contactors |
| url | https://www.mdpi.com/2077-0375/13/5/494 |
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