151
physical and sometimes chemical properties. A critical review of the published data
is then necessary as care should be taken to have similar amounts of water in molar
fractions reported in order to accurately compare the gas solvation capacities of the
different eutectic mixtures.
Unfortunately, no evident descriptor could be identified to explain the variety of
equilibrium gas absorptions found for the different deep eutectic solvents. By far,
the larger solubilities were found for SO 2 and NO in all the eutectic mixtures studied
with these gases. The larger absorption for SO 2 is reported for the common [Ch]Cl:U
mixture, while for NO the larger absorption was measured for mixtures based in
tetraalkylphosphonium salts. H 2 S is one order of magnitude less soluble than the
two previous gases, the larger absorptions being found also in mixtures based on
tetraalkylphosphonium salts.
Carbon dioxide is the most studied gas in eutectic mixtures, and its absorption
spans a wide range of concentrations. The most striking values are found for mixtures based in allyltriphenylphosphonium salts with absorptions close to those
found for H 2 S. Eutectic mixtures containing amines are also reported as excellent
absorbers of CO 2 , this behavior being probably explained by a chemical reaction
between the gas and these components of the eutectic mixture.
References
Abbott AP, Capper G, Davies DL et al (2003) Novel solvent properties of choline chloride/urea
mixtures. Chem Commun:70–71
Abbott AP, Boothby D, Capper G et al (2004) Deep eutectic solvents formed between choline chloride and carboxylic acids: versatile alternatives to ionic liquids. J Am Chem Soc
126:9142–9147. https://doi.org/10.1021/ja048266j
Adeyemi I, Abu-Zahra MRM, Alnashef I (2017a) Experimental study of the solubility of CO2 in
novel amine based deep eutectic solvents. In: Energy procedia. Elsevier Ltd, pp 1394–1400
Adeyemi I, Abu-Zahra MRM, Alnashef I (2017b) Novel green solvents for CO2 capture. In:
Energy procedia. Elsevier Ltd, pp 2552–2560
Akhmetshina AI, Petukhov AN, Mechergui A et al (2018) Evaluation of Methanesulfonate-based
deep eutectic solvent for ammonia sorption. J Chem Eng Data 63:1896–1904. https://doi.
org/10.1021/acs.jced.7b01004
Ali E, Hadj-Kali MK, Mulyono S et al (2014) Solubility of CO2 in deep eutectic solvents:
experiments and modelling using the Peng-Robinson equation of state. Chem Eng Res Des
92:1898–1906. https://doi.org/10.1016/j.cherd.2014.02.004
Ali E, Hadj-Kali MK, Mulyono S, Alnashef I (2016) Analysis of operating conditions for CO2
capturing process using deep eutectic solvents. Int J Greenhouse Gas Control 47:342–350.
https://doi.org/10.1016/j.ijggc.2016.02.006
Altamash T, Atilhan M, Aliyan A et al (2017) Rheological, thermodynamic, and gas solubility
properties of Phenylacetic acid-based deep eutectic solvents. Chem Eng Technol 40:778–790.
https://doi.org/10.1002/ceat.201600475
Altamash T, Nasser MS, Elhamarnah Y et al (2018) Gas solubility and rheological behavior study
of betaine and alanine based natural deep eutectic solvents (NADES). J Mol Liq 256:286–295.
https://doi.org/10.1016/j.molliq.2018.02.049
4 Solubility of Gases in Deep Eutectic Solvents
physical and sometimes chemical properties. A critical review of the published data
is then necessary as care should be taken to have similar amounts of water in molar
fractions reported in order to accurately compare the gas solvation capacities of the
different eutectic mixtures.
Unfortunately, no evident descriptor could be identified to explain the variety of
equilibrium gas absorptions found for the different deep eutectic solvents. By far,
the larger solubilities were found for SO 2 and NO in all the eutectic mixtures studied
with these gases. The larger absorption for SO 2 is reported for the common [Ch]Cl:U
mixture, while for NO the larger absorption was measured for mixtures based in
tetraalkylphosphonium salts. H 2 S is one order of magnitude less soluble than the
two previous gases, the larger absorptions being found also in mixtures based on
tetraalkylphosphonium salts.
Carbon dioxide is the most studied gas in eutectic mixtures, and its absorption
spans a wide range of concentrations. The most striking values are found for mixtures based in allyltriphenylphosphonium salts with absorptions close to those
found for H 2 S. Eutectic mixtures containing amines are also reported as excellent
absorbers of CO 2 , this behavior being probably explained by a chemical reaction
between the gas and these components of the eutectic mixture.
References
Abbott AP, Capper G, Davies DL et al (2003) Novel solvent properties of choline chloride/urea
mixtures. Chem Commun:70–71
Abbott AP, Boothby D, Capper G et al (2004) Deep eutectic solvents formed between choline chloride and carboxylic acids: versatile alternatives to ionic liquids. J Am Chem Soc
126:9142–9147. https://doi.org/10.1021/ja048266j
Adeyemi I, Abu-Zahra MRM, Alnashef I (2017a) Experimental study of the solubility of CO2 in
novel amine based deep eutectic solvents. In: Energy procedia. Elsevier Ltd, pp 1394–1400
Adeyemi I, Abu-Zahra MRM, Alnashef I (2017b) Novel green solvents for CO2 capture. In:
Energy procedia. Elsevier Ltd, pp 2552–2560
Akhmetshina AI, Petukhov AN, Mechergui A et al (2018) Evaluation of Methanesulfonate-based
deep eutectic solvent for ammonia sorption. J Chem Eng Data 63:1896–1904. https://doi.
org/10.1021/acs.jced.7b01004
Ali E, Hadj-Kali MK, Mulyono S et al (2014) Solubility of CO2 in deep eutectic solvents:
experiments and modelling using the Peng-Robinson equation of state. Chem Eng Res Des
92:1898–1906. https://doi.org/10.1016/j.cherd.2014.02.004
Ali E, Hadj-Kali MK, Mulyono S, Alnashef I (2016) Analysis of operating conditions for CO2
capturing process using deep eutectic solvents. Int J Greenhouse Gas Control 47:342–350.
https://doi.org/10.1016/j.ijggc.2016.02.006
Altamash T, Atilhan M, Aliyan A et al (2017) Rheological, thermodynamic, and gas solubility
properties of Phenylacetic acid-based deep eutectic solvents. Chem Eng Technol 40:778–790.
https://doi.org/10.1002/ceat.201600475
Altamash T, Nasser MS, Elhamarnah Y et al (2018) Gas solubility and rheological behavior study
of betaine and alanine based natural deep eutectic solvents (NADES). J Mol Liq 256:286–295.
https://doi.org/10.1016/j.molliq.2018.02.049
4 Solubility of Gases in Deep Eutectic Solvents