Developing non-aqueous slurry for CO2 capture
The urgency of mitigating CO2 emissions has become increasingly critical due to their detrimental effects on environmental sustainability and human health. Among emerging solutions, deep eutectic solvents (DESs) have garnered attention for their high CO2 capture capacities. However, widespread appli...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-06-01
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| Series: | Carbon Capture Science & Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2772656825000259 |
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| author | Sahar Foorginezhad Xiaoyan Ji |
| author_facet | Sahar Foorginezhad Xiaoyan Ji |
| author_sort | Sahar Foorginezhad |
| collection | DOAJ |
| description | The urgency of mitigating CO2 emissions has become increasingly critical due to their detrimental effects on environmental sustainability and human health. Among emerging solutions, deep eutectic solvents (DESs) have garnered attention for their high CO2 capture capacities. However, widespread application of DESs has been constrained by their inherent high viscosity and cost. To overcome these limitations, this study further explores the novel strategy, where cosolvent addition and immobilization are combined to develop a non-aqueous slurry for CO2 capture with high efficiency. Here, [MEACl][EDA] with (1:5) molar ratio is mixed with ethylene glycol (EG) to form a non-aqueous DES solution, and the DES is further immobilized into the mesoporous silica to form a composite and then mixed with the DES-EG solution to make a slurry. The CO2 capture tests demonstrated 15 wt.% capture capacity at 22 °C and 1 bar, and efficient sorption and desorption rates (0.34 and 0.38 mol CO2/(kg sorbent·min) within the initial 2 min). The slurry also exhibited promising cyclic performance with 96.4 % recovery together with minimal solvent loss of 0.97 % and almost intact structure after 120 hr of heating at 110 °C. The improved capture capacity and kinetics, especially for desorption, as well as enhanced thermal stability of the non-aqueous system highlight its potential for industrial applications. |
| format | Article |
| id | doaj-art-f151fad0f7fa45bfbb0ffeb7b92c655f |
| institution | Kabale University |
| issn | 2772-6568 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Carbon Capture Science & Technology |
| spelling | doaj-art-f151fad0f7fa45bfbb0ffeb7b92c655f2025-02-11T04:35:42ZengElsevierCarbon Capture Science & Technology2772-65682025-06-0115100385Developing non-aqueous slurry for CO2 captureSahar Foorginezhad0Xiaoyan Ji1Corresponding authors.; Energy Science/Energy Engineering, Department of Engineering Sciences and Mathematics, Luleå University of Technology, Luleå, SwedenCorresponding authors.; Energy Science/Energy Engineering, Department of Engineering Sciences and Mathematics, Luleå University of Technology, Luleå, SwedenThe urgency of mitigating CO2 emissions has become increasingly critical due to their detrimental effects on environmental sustainability and human health. Among emerging solutions, deep eutectic solvents (DESs) have garnered attention for their high CO2 capture capacities. However, widespread application of DESs has been constrained by their inherent high viscosity and cost. To overcome these limitations, this study further explores the novel strategy, where cosolvent addition and immobilization are combined to develop a non-aqueous slurry for CO2 capture with high efficiency. Here, [MEACl][EDA] with (1:5) molar ratio is mixed with ethylene glycol (EG) to form a non-aqueous DES solution, and the DES is further immobilized into the mesoporous silica to form a composite and then mixed with the DES-EG solution to make a slurry. The CO2 capture tests demonstrated 15 wt.% capture capacity at 22 °C and 1 bar, and efficient sorption and desorption rates (0.34 and 0.38 mol CO2/(kg sorbent·min) within the initial 2 min). The slurry also exhibited promising cyclic performance with 96.4 % recovery together with minimal solvent loss of 0.97 % and almost intact structure after 120 hr of heating at 110 °C. The improved capture capacity and kinetics, especially for desorption, as well as enhanced thermal stability of the non-aqueous system highlight its potential for industrial applications.http://www.sciencedirect.com/science/article/pii/S2772656825000259Carbon captureDeep eutectic solventSlurryImmobilizationDesorption |
| spellingShingle | Sahar Foorginezhad Xiaoyan Ji Developing non-aqueous slurry for CO2 capture Carbon Capture Science & Technology Carbon capture Deep eutectic solvent Slurry Immobilization Desorption |
| title | Developing non-aqueous slurry for CO2 capture |
| title_full | Developing non-aqueous slurry for CO2 capture |
| title_fullStr | Developing non-aqueous slurry for CO2 capture |
| title_full_unstemmed | Developing non-aqueous slurry for CO2 capture |
| title_short | Developing non-aqueous slurry for CO2 capture |
| title_sort | developing non aqueous slurry for co2 capture |
| topic | Carbon capture Deep eutectic solvent Slurry Immobilization Desorption |
| url | http://www.sciencedirect.com/science/article/pii/S2772656825000259 |
| work_keys_str_mv | AT saharfoorginezhad developingnonaqueousslurryforco2capture AT xiaoyanji developingnonaqueousslurryforco2capture |