Evaluating CO<sub>2</sub> Desorption Activity of Tri-Solvent MEA + EAE + AMP with Various Commercial Solid Acid Catalysts
The Paris Agreement and one of its goals, “carbon neutrality,” require intensive studies on CO<sub>2</sub> absorption and desorption processes. When searching for ways of reducing the huge energy cost of CO<sub>2</sub> desorption in the amine scrubbing process, the combinatio...
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| Format: | Article |
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MDPI AG
2022-06-01
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| Series: | Catalysts |
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| Online Access: | https://www.mdpi.com/2073-4344/12/7/723 |
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| author | Binbin Zhang Jiacheng Peng Ye Li Huancong Shi Jing Jin Jiawei Hu Shijian Lu |
| author_facet | Binbin Zhang Jiacheng Peng Ye Li Huancong Shi Jing Jin Jiawei Hu Shijian Lu |
| author_sort | Binbin Zhang |
| collection | DOAJ |
| description | The Paris Agreement and one of its goals, “carbon neutrality,” require intensive studies on CO<sub>2</sub> absorption and desorption processes. When searching for ways of reducing the huge energy cost of CO<sub>2</sub> desorption in the amine scrubbing process, the combination of blended amine with solid acid catalysts turned out to be a powerful solution in need of further investigation. In this study, the tri-solvent MEA (monoethanolamine) + EAE(2-(ethylamino)ethanol) + AMP(2-amino-2-methyl-1-propanol) was prepared at: 0.2 + 2 + 2, 0.5 + 2 + 2, 0.3 + 1.5 + 2.5 and 0.2 + 1 + 3 mol/L. The heterogeneous catalytic CO<sub>2</sub> desorptions were tested with five commercial catalysts: blended γ-Al<sub>2</sub>O<sub>3</sub>/H-ZSM-5, H-beta, H-mordenite, HND-8 and HND-580. Desorption experiments were conducted via a recirculation process with direct heating at 363 K or using temperature programming method having a range of 303–363 K. Then, the average CO<sub>2</sub> desorption rate, heat duty and desorption factors were studied. After comparison, the order of CO<sub>2</sub> desorption performance was found to be HND-8 > HND-580 > H-mordenite > Hβ > blended γ-Al<sub>2</sub>O<sub>3</sub>/H-ZSM-5 > no catalyst. Among the other combinations, the 0.2 + 1 + 3 mol/L MEA + EAE + AMP with HND-8 had a minimized heat duty (HD) of 589.3 kJ/mol CO<sub>2</sub> and the biggest desorption factor (DF) of 0.0277 × (10<sup>−3</sup> mol CO<sub>2</sub>)<sup>3</sup>/L<sup>2</sup> kJ min. This study provided a kind of tri-solvent with catalysts as an energy-efficient solution for CO<sub>2</sub> absorption and desorption in industrial CO<sub>2</sub> capture pilot plants. |
| first_indexed | 2024-03-09T10:21:45Z |
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| id | doaj.art-e76b9383eed5413188155abcdb244ff9 |
| institution | Directory Open Access Journal |
| issn | 2073-4344 |
| language | English |
| last_indexed | 2024-03-09T10:21:45Z |
| publishDate | 2022-06-01 |
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| spelling | doaj.art-e76b9383eed5413188155abcdb244ff92023-12-01T22:00:12ZengMDPI AGCatalysts2073-43442022-06-0112772310.3390/catal12070723Evaluating CO<sub>2</sub> Desorption Activity of Tri-Solvent MEA + EAE + AMP with Various Commercial Solid Acid CatalystsBinbin Zhang0Jiacheng Peng1Ye Li2Huancong Shi3Jing Jin4Jiawei Hu5Shijian Lu6School of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai 200093, ChinaSchool of Environment and Architecture, University of Shanghai for Science and Technology, Shanghai 200093, ChinaSchool of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai 200093, ChinaSchool of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai 200093, ChinaSchool of Energy and Power Engineering, University of Shanghai for Science and Technology, Shanghai 200093, ChinaCollege of Environmental Science & Engineering, Tongji University, 1239 Siping Road, Shanghai 200092, ChinaCarbon Neutrality Institute, China University of Mining and Technology, Xuzhou 221008, ChinaThe Paris Agreement and one of its goals, “carbon neutrality,” require intensive studies on CO<sub>2</sub> absorption and desorption processes. When searching for ways of reducing the huge energy cost of CO<sub>2</sub> desorption in the amine scrubbing process, the combination of blended amine with solid acid catalysts turned out to be a powerful solution in need of further investigation. In this study, the tri-solvent MEA (monoethanolamine) + EAE(2-(ethylamino)ethanol) + AMP(2-amino-2-methyl-1-propanol) was prepared at: 0.2 + 2 + 2, 0.5 + 2 + 2, 0.3 + 1.5 + 2.5 and 0.2 + 1 + 3 mol/L. The heterogeneous catalytic CO<sub>2</sub> desorptions were tested with five commercial catalysts: blended γ-Al<sub>2</sub>O<sub>3</sub>/H-ZSM-5, H-beta, H-mordenite, HND-8 and HND-580. Desorption experiments were conducted via a recirculation process with direct heating at 363 K or using temperature programming method having a range of 303–363 K. Then, the average CO<sub>2</sub> desorption rate, heat duty and desorption factors were studied. After comparison, the order of CO<sub>2</sub> desorption performance was found to be HND-8 > HND-580 > H-mordenite > Hβ > blended γ-Al<sub>2</sub>O<sub>3</sub>/H-ZSM-5 > no catalyst. Among the other combinations, the 0.2 + 1 + 3 mol/L MEA + EAE + AMP with HND-8 had a minimized heat duty (HD) of 589.3 kJ/mol CO<sub>2</sub> and the biggest desorption factor (DF) of 0.0277 × (10<sup>−3</sup> mol CO<sub>2</sub>)<sup>3</sup>/L<sup>2</sup> kJ min. This study provided a kind of tri-solvent with catalysts as an energy-efficient solution for CO<sub>2</sub> absorption and desorption in industrial CO<sub>2</sub> capture pilot plants.https://www.mdpi.com/2073-4344/12/7/723catalytic CO<sub>2</sub> desorptioncarbamate stabilitytri-solventcoordinative effect |
| spellingShingle | Binbin Zhang Jiacheng Peng Ye Li Huancong Shi Jing Jin Jiawei Hu Shijian Lu Evaluating CO<sub>2</sub> Desorption Activity of Tri-Solvent MEA + EAE + AMP with Various Commercial Solid Acid Catalysts Catalysts catalytic CO<sub>2</sub> desorption carbamate stability tri-solvent coordinative effect |
| title | Evaluating CO<sub>2</sub> Desorption Activity of Tri-Solvent MEA + EAE + AMP with Various Commercial Solid Acid Catalysts |
| title_full | Evaluating CO<sub>2</sub> Desorption Activity of Tri-Solvent MEA + EAE + AMP with Various Commercial Solid Acid Catalysts |
| title_fullStr | Evaluating CO<sub>2</sub> Desorption Activity of Tri-Solvent MEA + EAE + AMP with Various Commercial Solid Acid Catalysts |
| title_full_unstemmed | Evaluating CO<sub>2</sub> Desorption Activity of Tri-Solvent MEA + EAE + AMP with Various Commercial Solid Acid Catalysts |
| title_short | Evaluating CO<sub>2</sub> Desorption Activity of Tri-Solvent MEA + EAE + AMP with Various Commercial Solid Acid Catalysts |
| title_sort | evaluating co sub 2 sub desorption activity of tri solvent mea eae amp with various commercial solid acid catalysts |
| topic | catalytic CO<sub>2</sub> desorption carbamate stability tri-solvent coordinative effect |
| url | https://www.mdpi.com/2073-4344/12/7/723 |
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