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Monoethanolamine + Ethylene Glycol + Choline Chloride: An Effect of the Mixture Composition on the CO2 Absorption Capacity, Density, and Viscosity
Journal of Chemical & Engineering Data ( IF 2.0 ) Pub Date : 2022-09-02 , DOI: 10.1021/acs.jced.2c00245 Olga V. Kazarina 1, 2 , Vira N. Agieienko 1 , Anton N. Petukhov 2, 3 , Andrey V. Vorotyntsev 1, 3 , Alexander S. Kazarin 3 , Maria E. Atlaskina 1, 2 , Artem A. Atlaskin 2 , Artyom N. Markov 3 , Anna A. Golovacheva 2 , Ilya V. Vorotyntsev 2
Journal of Chemical & Engineering Data ( IF 2.0 ) Pub Date : 2022-09-02 , DOI: 10.1021/acs.jced.2c00245 Olga V. Kazarina 1, 2 , Vira N. Agieienko 1 , Anton N. Petukhov 2, 3 , Andrey V. Vorotyntsev 1, 3 , Alexander S. Kazarin 3 , Maria E. Atlaskina 1, 2 , Artem A. Atlaskin 2 , Artyom N. Markov 3 , Anna A. Golovacheva 2 , Ilya V. Vorotyntsev 2
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In the present paper, a systematic investigation of the influence of amine and salt concentration on the CO2 absorption capacity (
, moles of CO2 absorbed by 1 kg of a solution) and amine efficiency (
, moles of CO2 absorbed by 1 mole of amine) of the ternary mixtures composed of monoethanolamine (MEA), ethylene glycol (EG), and choline chloride (ChCl) was carried out. We demonstrate that, in general, the presence of a fixed amount of ChCl in a mixed {MEA + EG} solvent cannot improve 
over an entire range of solvent composition and weakly decreases 
with the effect more pronounced for the mixtures containing greater amount of MEA. The influence of ChCl concentration on the above properties was analyzed for the mixtures with a fixed MEA/EG mole ratio but various ChCl concentrations. It was shown that a decrease in 
observed with an increase in ChCl, again, is rather caused by an overall decrease in MEA content in a mixture as its efficiency 
does not change when ChCl concentration increases. In addition, properties such as density (ρ) and viscosity (η) of the binary {MEA + EG} and ternary {MEA + EG + ChCl} mixtures were obtained within a wide range of temperatures for both neat and CO2-loaded samples. We show that regardless of the {MEA + EG} mixed solvent composition, the presence of ChCl increases both ρ and η. For CO2-loaded samples, both properties increase significantly with a greater contribution for the mixtures containing greater amount of MEA.
中文翻译：
单乙醇胺 + 乙二醇 + 氯化胆碱：混合物组成对 CO2 吸收能力、密度和粘度的影响
在本文中，系统研究了胺和盐浓度对CO 2吸收能力的影响（, 1 kg 溶液吸收的 CO 2摩尔数) 和胺效率 (进行了由单乙醇胺(MEA)、乙二醇(EG)和氯化胆碱(ChCl)组成的三元混合物的1摩尔胺吸收的CO 2摩尔数。我们证明，一般来说，在混合 {MEA + EG} 溶剂中存在固定量的 ChCl 不能改善在整个溶剂组成范围内并弱下降对于含有更多 MEA 的混合物，效果更显着。对于具有固定 MEA/EG 摩尔比但不同 ChCl 浓度的混合物，分析了 ChCl 浓度对上述性质的影响。结果表明，减少再次观察到随着 ChCl 的增加，这是由于混合物中 MEA 含量的总体下降，因为它的效率ChCl 浓度增加时不变。此外，二元 {MEA + EG} 和三元 {MEA + EG + ChCl} 混合物的密度 ( ρ ) 和粘度 ( η ) 等特性在较宽的温度范围内获得了纯样品和 CO 2负载样品. 我们表明，无论 {MEA + EG} 混合溶剂组成如何，ChCl 的存在都会增加ρ和η。对于载有 CO 2的样品，这两种性质都显着增加，对于含有更大量 MEA 的混合物的贡献更大。
更新日期：2022-09-02
, moles of CO2 absorbed by 1 kg of a solution) and amine efficiency (, moles of CO2 absorbed by 1 mole of amine) of the ternary mixtures composed of monoethanolamine (MEA), ethylene glycol (EG), and choline chloride (ChCl) was carried out. We demonstrate that, in general, the presence of a fixed amount of ChCl in a mixed {MEA + EG} solvent cannot improve over an entire range of solvent composition and weakly decreases with the effect more pronounced for the mixtures containing greater amount of MEA. The influence of ChCl concentration on the above properties was analyzed for the mixtures with a fixed MEA/EG mole ratio but various ChCl concentrations. It was shown that a decrease in observed with an increase in ChCl, again, is rather caused by an overall decrease in MEA content in a mixture as its efficiency does not change when ChCl concentration increases. In addition, properties such as density (ρ) and viscosity (η) of the binary {MEA + EG} and ternary {MEA + EG + ChCl} mixtures were obtained within a wide range of temperatures for both neat and CO2-loaded samples. We show that regardless of the {MEA + EG} mixed solvent composition, the presence of ChCl increases both ρ and η. For CO2-loaded samples, both properties increase significantly with a greater contribution for the mixtures containing greater amount of MEA.
中文翻译：
单乙醇胺 + 乙二醇 + 氯化胆碱：混合物组成对 CO2 吸收能力、密度和粘度的影响
在本文中，系统研究了胺和盐浓度对CO 2吸收能力的影响（
, 1 kg 溶液吸收的 CO 2摩尔数) 和胺效率 (进行了由单乙醇胺(MEA)、乙二醇(EG)和氯化胆碱(ChCl)组成的三元混合物的1摩尔胺吸收的CO 2摩尔数。我们证明，一般来说，在混合 {MEA + EG} 溶剂中存在固定量的 ChCl 不能改善在整个溶剂组成范围内并弱下降对于含有更多 MEA 的混合物，效果更显着。对于具有固定 MEA/EG 摩尔比但不同 ChCl 浓度的混合物，分析了 ChCl 浓度对上述性质的影响。结果表明，减少再次观察到随着 ChCl 的增加，这是由于混合物中 MEA 含量的总体下降，因为它的效率ChCl 浓度增加时不变。此外，二元 {MEA + EG} 和三元 {MEA + EG + ChCl} 混合物的密度 ( ρ ) 和粘度 ( η ) 等特性在较宽的温度范围内获得了纯样品和 CO 2负载样品. 我们表明，无论 {MEA + EG} 混合溶剂组成如何，ChCl 的存在都会增加ρ和η。对于载有 CO 2的样品，这两种性质都显着增加，对于含有更大量 MEA 的混合物的贡献更大。
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