Off-Design Operation of Conventional and Phase-Change CO<sub>2</sub> Capture Solvents and Mixtures: A Systematic Assessment Approach
Solvent-based CO<sub>2</sub> capture technologies hold promise for future implementation but conventional solvents incur significant energy penalties and capture costs. Phase-change solvents enable a significant reduction in the regeneration energy but their performance has only been inv...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-07-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/10/15/5316 |
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| author | Theodoros Zarogiannis Athanasios I. Papadopoulos Panos Seferlis |
| author_facet | Theodoros Zarogiannis Athanasios I. Papadopoulos Panos Seferlis |
| author_sort | Theodoros Zarogiannis |
| collection | DOAJ |
| description | Solvent-based CO<sub>2</sub> capture technologies hold promise for future implementation but conventional solvents incur significant energy penalties and capture costs. Phase-change solvents enable a significant reduction in the regeneration energy but their performance has only been investigated under steady-state operation. In the current work, we employed a systematic approach for the evaluation of conventional solvents and mixtures, as well as phase-change solvents under the influence of disturbances. Sensitivity analysis was used to identify the impact that operating parameter variations and different solvents exert on multiple CO<sub>2</sub> capture performance indicators within a wide operating range. The resulting capture process performance was then assessed for each solvent within a multi-criteria approach, which simultaneously accounted for off-design conditions and nominal operation. The considered performance criteria included the regeneration energy, solvent mass flow rate, cost and cyclic capacity, net energy penalty from integration with an upstream power plant, and lost revenue from parasitic losses. The 10 investigated solvents included the phase-change solvents methyl-cyclohexylamine (MCA) and 2-(diethylamino)ethanol/3-(methylamino)propylamine (DEEA/MAPA). We found that the conventional mixture diethanolamine/methyldiethanolamine (DEA/MDEA) and the phase-change solvent DEEA/MAPA exhibited both resilience to disturbances and desirable nominal operation for multiple performance indicators simultaneously. |
| first_indexed | 2024-03-10T18:04:44Z |
| format | Article |
| id | doaj.art-f4d820c4de5b4dee8ede1e0ac9dcb53a |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T18:04:44Z |
| publishDate | 2020-07-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-f4d820c4de5b4dee8ede1e0ac9dcb53a2023-11-20T08:39:18ZengMDPI AGApplied Sciences2076-34172020-07-011015531610.3390/app10155316Off-Design Operation of Conventional and Phase-Change CO<sub>2</sub> Capture Solvents and Mixtures: A Systematic Assessment ApproachTheodoros Zarogiannis0Athanasios I. Papadopoulos1Panos Seferlis2Chemical Process and Energy Resources Institute, Centre for Research and Technology-Hellas, 57001 Thermi, Thessaloniki, GreeceChemical Process and Energy Resources Institute, Centre for Research and Technology-Hellas, 57001 Thermi, Thessaloniki, GreeceChemical Process and Energy Resources Institute, Centre for Research and Technology-Hellas, 57001 Thermi, Thessaloniki, GreeceSolvent-based CO<sub>2</sub> capture technologies hold promise for future implementation but conventional solvents incur significant energy penalties and capture costs. Phase-change solvents enable a significant reduction in the regeneration energy but their performance has only been investigated under steady-state operation. In the current work, we employed a systematic approach for the evaluation of conventional solvents and mixtures, as well as phase-change solvents under the influence of disturbances. Sensitivity analysis was used to identify the impact that operating parameter variations and different solvents exert on multiple CO<sub>2</sub> capture performance indicators within a wide operating range. The resulting capture process performance was then assessed for each solvent within a multi-criteria approach, which simultaneously accounted for off-design conditions and nominal operation. The considered performance criteria included the regeneration energy, solvent mass flow rate, cost and cyclic capacity, net energy penalty from integration with an upstream power plant, and lost revenue from parasitic losses. The 10 investigated solvents included the phase-change solvents methyl-cyclohexylamine (MCA) and 2-(diethylamino)ethanol/3-(methylamino)propylamine (DEEA/MAPA). We found that the conventional mixture diethanolamine/methyldiethanolamine (DEA/MDEA) and the phase-change solvent DEEA/MAPA exhibited both resilience to disturbances and desirable nominal operation for multiple performance indicators simultaneously.https://www.mdpi.com/2076-3417/10/15/5316CO<sub>2</sub> capture processsolvent-based absorption/desorptionoff-design operationphase-change solventssensitivity analysis |
| spellingShingle | Theodoros Zarogiannis Athanasios I. Papadopoulos Panos Seferlis Off-Design Operation of Conventional and Phase-Change CO<sub>2</sub> Capture Solvents and Mixtures: A Systematic Assessment Approach Applied Sciences CO<sub>2</sub> capture process solvent-based absorption/desorption off-design operation phase-change solvents sensitivity analysis |
| title | Off-Design Operation of Conventional and Phase-Change CO<sub>2</sub> Capture Solvents and Mixtures: A Systematic Assessment Approach |
| title_full | Off-Design Operation of Conventional and Phase-Change CO<sub>2</sub> Capture Solvents and Mixtures: A Systematic Assessment Approach |
| title_fullStr | Off-Design Operation of Conventional and Phase-Change CO<sub>2</sub> Capture Solvents and Mixtures: A Systematic Assessment Approach |
| title_full_unstemmed | Off-Design Operation of Conventional and Phase-Change CO<sub>2</sub> Capture Solvents and Mixtures: A Systematic Assessment Approach |
| title_short | Off-Design Operation of Conventional and Phase-Change CO<sub>2</sub> Capture Solvents and Mixtures: A Systematic Assessment Approach |
| title_sort | off design operation of conventional and phase change co sub 2 sub capture solvents and mixtures a systematic assessment approach |
| topic | CO<sub>2</sub> capture process solvent-based absorption/desorption off-design operation phase-change solvents sensitivity analysis |
| url | https://www.mdpi.com/2076-3417/10/15/5316 |
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