Production of Sustainable Adsorbents for CO<sub>2</sub> Capture Applications from Food Biowastes
Traditional methods to develop biomass-based carbon adsorbents generally involve carbonization followed by chemical or physical activation. However, routes involving the hydrothermal treatment of biomass are receiving growing interest. In this work, two different strategies for the synthesis of sust...
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| Format: | Article |
| Language: | English |
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MDPI AG
2024-03-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/17/5/1205 |
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| author | Fernando Rubiera Carlos Córdoba Tamara Pena Marta G. Plaza |
| author_facet | Fernando Rubiera Carlos Córdoba Tamara Pena Marta G. Plaza |
| author_sort | Fernando Rubiera |
| collection | DOAJ |
| description | Traditional methods to develop biomass-based carbon adsorbents generally involve carbonization followed by chemical or physical activation. However, routes involving the hydrothermal treatment of biomass are receiving growing interest. In this work, two different strategies for the synthesis of sustainable CO<sub>2</sub> adsorbents are compared, i.e., in situ ionic activation and hydrothermal treatment followed by activation with CO<sub>2</sub>. The latter is a green and simple procedure that does not require the addition of chemicals or acid-washing stages, and which leads to carbon adsorbents with relatively high CO<sub>2</sub> adsorption capacity at low pressures, up to 0.64 mmol g<sup>−1</sup> at 15 kPa and 50 °C, conditions relevant for postcombustion CO<sub>2</sub> capture applications. On the other hand, in situ ionic activation can lead to carbon adsorbents with superior CO<sub>2</sub> adsorption capacity in the aforementioned conditions, 0.78 mmol g<sup>−1</sup>, and with reduced cost and environmental impact compared to conventional chemical activation. |
| first_indexed | 2024-04-25T00:31:13Z |
| format | Article |
| id | doaj.art-768585576f9141f89b2aaae140b3af63 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-04-25T00:31:13Z |
| publishDate | 2024-03-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-768585576f9141f89b2aaae140b3af632024-03-12T16:43:43ZengMDPI AGEnergies1996-10732024-03-01175120510.3390/en17051205Production of Sustainable Adsorbents for CO<sub>2</sub> Capture Applications from Food BiowastesFernando Rubiera0Carlos Córdoba1Tamara Pena2Marta G. Plaza3Instituto de Ciencia y Tecnología del Carbono (INCAR), CSIC, C/Francisco Pintado Fe 26, 33011 Oviedo, SpainInstituto de Ciencia y Tecnología del Carbono (INCAR), CSIC, C/Francisco Pintado Fe 26, 33011 Oviedo, SpainInstituto de Ciencia y Tecnología del Carbono (INCAR), CSIC, C/Francisco Pintado Fe 26, 33011 Oviedo, SpainInstituto de Ciencia y Tecnología del Carbono (INCAR), CSIC, C/Francisco Pintado Fe 26, 33011 Oviedo, SpainTraditional methods to develop biomass-based carbon adsorbents generally involve carbonization followed by chemical or physical activation. However, routes involving the hydrothermal treatment of biomass are receiving growing interest. In this work, two different strategies for the synthesis of sustainable CO<sub>2</sub> adsorbents are compared, i.e., in situ ionic activation and hydrothermal treatment followed by activation with CO<sub>2</sub>. The latter is a green and simple procedure that does not require the addition of chemicals or acid-washing stages, and which leads to carbon adsorbents with relatively high CO<sub>2</sub> adsorption capacity at low pressures, up to 0.64 mmol g<sup>−1</sup> at 15 kPa and 50 °C, conditions relevant for postcombustion CO<sub>2</sub> capture applications. On the other hand, in situ ionic activation can lead to carbon adsorbents with superior CO<sub>2</sub> adsorption capacity in the aforementioned conditions, 0.78 mmol g<sup>−1</sup>, and with reduced cost and environmental impact compared to conventional chemical activation.https://www.mdpi.com/1996-1073/17/5/1205CO<sub>2</sub> captureadsorptionhydrothermal carbonizationbiomassin situ ionic activationactivated carbon |
| spellingShingle | Fernando Rubiera Carlos Córdoba Tamara Pena Marta G. Plaza Production of Sustainable Adsorbents for CO<sub>2</sub> Capture Applications from Food Biowastes Energies CO<sub>2</sub> capture adsorption hydrothermal carbonization biomass in situ ionic activation activated carbon |
| title | Production of Sustainable Adsorbents for CO<sub>2</sub> Capture Applications from Food Biowastes |
| title_full | Production of Sustainable Adsorbents for CO<sub>2</sub> Capture Applications from Food Biowastes |
| title_fullStr | Production of Sustainable Adsorbents for CO<sub>2</sub> Capture Applications from Food Biowastes |
| title_full_unstemmed | Production of Sustainable Adsorbents for CO<sub>2</sub> Capture Applications from Food Biowastes |
| title_short | Production of Sustainable Adsorbents for CO<sub>2</sub> Capture Applications from Food Biowastes |
| title_sort | production of sustainable adsorbents for co sub 2 sub capture applications from food biowastes |
| topic | CO<sub>2</sub> capture adsorption hydrothermal carbonization biomass in situ ionic activation activated carbon |
| url | https://www.mdpi.com/1996-1073/17/5/1205 |
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