Physical absorption of CO2 in betaine/carboxylic acid-based Natural Deep Eutectic Solvents
| Autor: | Antonella Fontana, Valentino Canale, Pietro Di Profio, Matteo Tiecco, Susanna Guernelli, Gabriella Siani, Michele Ciulla |
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| Přispěvatelé: | Gabriella Siani, Matteo Tiecco, Pietro Di Profio, Susanna Guernelli, Antonella Fontana, Michele Ciulla, Valentino Canale |
| Rok vydání: | 2020 |
| Předmět: |
chemistry.chemical_classification
Sorbent Carboxylic acid 02 engineering and technology Phenylacetic acid 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics Natural Deep Eutectic Solvents CO2 capture Green chemistry 01 natural sciences Environmentally friendly Atomic and Molecular Physics and Optics 0104 chemical sciences Electronic Optical and Magnetic Materials chemistry.chemical_compound Betaine chemistry Materials Chemistry Organic chemistry Physical and Theoretical Chemistry Absorption (chemistry) Solubility 0210 nano-technology Spectroscopy Eutectic system |
| Zdroj: | Journal of Molecular Liquids. 315:113708 |
| ISSN: | 0167-7322 |
| DOI: | 10.1016/j.molliq.2020.113708 |
| Popis: | The ability of some zwitterionic natural deep eutectic solvents (NADESs) based on N,N,N-trimethylglycine (TMG) and carboxylic acids (oxalic, glycolic and phenylacetic) to act as environmentally friendly solvents for CO2 capture has been investigated. The solubility of CO2 in the NADESs was measured gravimetrically at different temperatures in the range 298.15–333.15 K, and at different pressures in the range 0.1–4 MPa. The effect of the adopted experimental conditions has been discussed. The highest uptake has been observed for phenylacetic acid/TMG DES at 313.15 K and 4 MPa (45.5 mg CO2/g DES). The efficiency of this NADES as CO2 sorbent when reused in subsequent capture cycles has been evaluated. This work might open new perspectives in developing the most appropriate combination of HBA and HBD components of the DESs and the most appropriate operative conditions for an environmentally friendly CO2 capture. |
| Databáze: | OpenAIRE |
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