| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Neves, Luísa A.
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (6/6 displayed)
- 2024A greener route to prepare PEBAX®1074 membranes for gas separation processescitations
- 2022Deep eutectic systems for carbonic anhydrase extraction from microalgae biomass to improve carbon dioxide solubilizationcitations
- 2021Modelling CO2 absorption in aqueous solutions of cholinium lysinate ionic liquidcitations
- 2019Demonstration of the adhesive properties of the medium-chain-length polyhydroxyalkanoate produced by Pseudomonas chlororaphis subsp. aurantiaca from glycerolcitations
- 2019Production of medium-chain length polyhydroxyalkanoates by Pseudomonas citronellolis grown in apple pulp wastecitations
- 2017Membranes with a low loading of Metal–Organic Framework-Supported Ionic Liquids for CO2/N2 separation in CO2 capturecitations
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article
Modelling CO2 absorption in aqueous solutions of cholinium lysinate ionic liquid
Abstract
<p>Ionic liquids (ILs) with quaternary ammonium cations combined with biocompatible anions from renewable sources result in low-toxic, biocompatible, cost-efficient sorbent media that can efficiently capture carbon dioxide (CO<sub>2</sub>). The understanding of the equilibrium and kinetics of CO<sub>2</sub>absorption in these media is relevant for the design of new absorption processes in many application areas, such as CO<sub>2</sub> removal from post-combustion streams, biogas refinery waste gases, or confined spaces. Here CO<sub>2</sub>absorption in an aqueous solution of cholinium lysinate IL is studied both theoretically, via mechanistic modelling, and experimentally in a membrane contactor operated in closed loop with online pH measurement and attenuated total reflectance Fourier transform infrared spectroscopy (ATR-FTIR) analysis of discrete sampling of the circulating aqueous IL solution. It is shown that both techniques are effective tools for CO<sub>2</sub>quantification in the liquid phase. The IL yields an absorption capacity of 2.20 mol of CO<sub>2</sub> per mole of IL for an IL concentration of 2.13 M (or 50 wt% solution). A comprehensive model of chemisorption thermodynamics and absorption dynamics is proposed and validated experimentally. It provides not only the equilibrium constants of the reversible reactions of protonation of the amine groups and bicarbonate binding and overall mass-transfer coefficient based on liquid-phase concentrations, but is also the basis for a chemometric analysis of the experimental ATR-FTIR data. The potential use of ATR-FTIR as a monitoring tool of CO<sub>2</sub> in aqueous solutions of cholinium lysinate IL is also demonstrated.</p>