Post-combustion CO2 capture: On the potentiality of amino acid ionic liquid as modifying agent of mesoporous solids
| Autor: | Alessandro Erto, Marco Balsamo, Giorgio Totarella, Amedeo Lancia, Fabio Montagnaro, Rosa Turco |
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| Přispěvatelé: | Balsamo, Marco, Erto, Alessandro, Lancia, Amedeo, Totarella, Giorgio, Montagnaro, Fabio, Turco, Rosa |
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Sorbent
General Chemical Engineering Organic Chemistry Energy Engineering and Power Technology 02 engineering and technology 010402 general chemistry 021001 nanoscience & nanotechnology Combustion Supported ionic liquid Carbon dioxide capture Adsorption kinetics Chemisorption Steam regeneration 01 natural sciences 0104 chemical sciences chemistry.chemical_compound Fuel Technology Adsorption chemistry Chemical engineering Chemisorption Desorption Ionic liquid 0210 nano-technology Saturation (chemistry) Mesoporous material |
| Popis: | In this paper, mesoporous γ-Al2O3 was impregnated with [Emim][Gly] ionic liquid (IL) at different loadings (5, 9 and 16% wt). The obtained sorbents were tested for CO2 capture under typical conditions of combustion flue-gas at temperatures varying in the range 303–373 K. N2 porosimetric analysis on the samples, coupled with kinetic tests of CO2 adsorption, revealed that a lower pore volume occurring at the highest IL loading ended up in a slower saturation process. The enhancement of CO2 capture capacity of the raw sorbent was monotonic with the IL loading and the best results were achieved at 303 K. The chemisorption nature of the adsorption process for IL-containing sorbents was assessed by means of FT-IR analysis. Finally, preliminary tests of cyclic adsorption/desorption showed that nearly 80% of the original CO2 capture capacity of sorbent was restored by steam desorption at 388 K. |
| Databáze: | OpenAIRE |
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