Experimental solubility of carbon dioxide in monoethanolamine, or diethanolamine or N-methyldiethanolamine (30 wt%) dissolved in deep eutectic solvent (choline chloride and ethylene glycol solution)

Solubility of Carbon Dioxide in Carboxylic Acid-Based Deep Eutectic Solvents

“…Similarly, ethaline formed from the ChCl as hydrogen bond acceptor (HBA) and ethylene glycol as hydrogen bond donor (HBD) have shown significant CO 2 uptake with lower viscosity. 20,21 Haider et al 22 demonstrated that the simulation of CO 2 recovery from shale gas using ethaline [choline chloride/ ethylene glycol (1: 24 demonstrated that mixtures of DES and amine (MEA or DEA) lead to the same efficiency than aqueous amine solutions. Excellent CO 2 uptakes were found with DESs constituting monoethanolammonium chloride or 1-methylimidazoliumchloride as HBAs and ethylenediamine or 3-amino-1propanol.…”

“…The CO 2 uptake varies from 8.4 wt % with MEA/[BMIM]­[Cl] (1:1) to 21.4 wt % with MEA/[BMIM]­[Cl] (4:1). Recently, Mahi et al demonstrated that mixtures of DES and amine (MEA or DEA) lead to the same efficiency than aqueous amine solutions. Excellent CO 2 uptakes were found with DESs constituting monoethanolammonium chloride or 1-methylimidazoliumchloride as HBAs and ethylenediamine or 3-amino-1-propanol .…”

Low-cost temperature transition mixtures (TTM) based on ethylene glycol/potassium hydroxide as reversible CO2 sorbents

“…In some cases, ethylene glycol (EG) and other glycols has been considered as a suitable component for CO2 sorbent systems. [13,22,23] The choice is particularly wise because the thermal capacity if EG is about one half that of water (CEG = 0.58 cal/(°C g) at 25°C), making the heating less energy-requiring. It is quite viscous (μEG = 16.1 cP at 25°C) and it is already globally employed, [24] with an industrial production of 20 million metric tons in 2010.…”

Low-Cost Temperature Transition Mixtures (TTM) Based on Ethylene Glycol/potassium Hydroxide as Reversible CO2 Sorbents

“…In some cases, ethylene glycol (EG) and other glycols has been considered as a suitable component for CO2 sorbent systems. [13,24,25] The choice is particularly wise because the thermal capacity if EG is about one half that of water (C EG = 0.58 cal/(°C g) at 25°C), making the heating less energy-requiring. It is quite viscous (μEG = 16.1 cP at 25°C) and it is already globally employed, [26] with an industrial production of 20 million metric tons in 2010.…”