Property of diethanolamine glycinate ionic liquid and its performance for CO2 capture

Lu, Jian-Gang; Lu, Zhenyu; Liu, Gao; Cao, Shuang; Wang, Jiating; Gao, Xiang; Tang, Yin-Qin; Winie, Tan

doi:10.1016/j.molliq.2015.06.059

Cited by 31 publications

(18 citation statements)

References 35 publications

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“…37 Diethanol amine glycinate ([DEA][Gly]) protic ILs was applied for CO 2 absorption, experimentally, by Lu and coworkers. 38 Since, this IL is composed of the ammonium and amine groups, [DEA][Gly] can be considered as an amino acid IL. Lu claimed that the partial pressure of CO 2 and IL concentration have an important effect on the absorption efficiency.…”

Section: Introductionmentioning

confidence: 99%

“…Diethanol amine glycinate ([DEA][Gly]) protic ILs was applied for CO 2 absorption, experimentally, by Lu and co-workers . Since, this IL is composed of the ammonium and amine groups, [DEA][Gly] can be considered as an amino acid IL.…”

Section: Introductionmentioning

confidence: 99%

“…A separate study was conducted on the performance of [DEA][Gly] IL, [DEA], and [bmim][PF 6 ]. According to the results, CO 2 solubility in [DEA][Gly] IL is more than amine-based solvents and nonamino acid ILs . They concluded that [DEA][Gly] has a high potential as an efficient solvent to be commercially used for CO 2 capture.…”

Section: Introductionmentioning

confidence: 99%

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Carbon Dioxide Absorption by the Imidazolium–Amino Acid Ionic Liquids, Kinetics, and Mechanism Approach

2018

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The kinetics and mechanism of CO absorption by ionic liquids (ILs) were studied, theoretically. The studied ILs are composed of 1-ethyl-3-methylimidazolium [Emim] as the cation with a general formula of the [Emim][X] (X = Gly, Ala, Lys, Arg). To investigate the alkyl chain length and the number of the amine group effects on the CO absorption, different amino acid anions were chosen. On the basis of the enthalpy changes during CO capture, a chemisorption nature is confirmed. An increase in the number of amine (-NH) groups in the ILs structures, facilitates the CO absorption. According to kinetic results, the rate of CO absorption by [Emim][Gly] is higher than that of [Emim][Ala]. This can be interpreted by a higher steric hindrance in [Emim][Ala] due to an additional methyl group in the amino acid chain. Donor-acceptor interactions and C-N bond formation were investigated by natural bond orbital analysis. Moreover, topological studies show a covalent nature for the C-N bond critical point that showing CO capture is a chemisorption process. Finally, on the basis of kinetic energy results, donor-acceptor interaction and topological analysis, [Emim][Arg] is proposed as the best candidate for CO absorption from the kinetic and thermodynamic viewpoints.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Carbon Dioxide Absorption by the Imidazolium–Amino Acid Ionic Liquids, Kinetics, and Mechanism Approach

2018

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“…Due to the large solubility differences, it is promising to use ionic liquids to separate reactive gases from unreactive gases. There are numerous investigations reported on the chemisorption of CO 2 in ionic liquids, such as those with amino groups, carboxylate anion, and aprotic hetercyclic anion based on CO 2 −amine reaction, − absorbing CO 2 even up to 2 mol ratio at the ambient condition. Nevertheless, high energy consumption is required during regeneration processes of ionic liquids (namely, the process of complete desorption of gas) from chemisorption.…”

Section: Introductionmentioning

confidence: 99%

CO₂ and CH₄ Sorption by [N_4 4 4 4][NTf₂] Ionic Liquid Using Quartz Crystal Microbalance Experiments under Different Pressures

et al. 2017

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Using a quartz crystal microbalance system, the sorbed gas mass on tetrabutylammonium bis(trifluoromethanesulfonyl)imide [N4 4 4 4][NTf2] ionic liquid film coated on the surface of a quartz crystal under pressures from 0.1 to 4 MPa at 303 K was calculated based on the Sauerbrey equation. The experimental results are qualitatively close to the sorption simulation results, showing the rationality of experimental data. Although the amount of the sorbed gas on [N4 4 4 4][NTf2] ionic liquid film increases with pressure, CO2/CH4 selectivity only presents a slight fluctuation from 1.13 to 1.53, which is much lower than that in most fluid ionic liquid bulks possibly due to the dominant adsorption regime.

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“…ILs show outstanding advantages as compared with alkanolamine absorbents. For example, thermal and chemical stabilities [12,13], less energy for regeneration of CO 2 -loading ILs [14,15], almost non-volatile and negligible vapor pressure [11,12], optionally adjustable and designable molecule structures [15], and high surface tensions [15].…”

Section: Introductionmentioning

confidence: 99%

Property of diethanolamine glycinate ionic liquid and its performance for CO2 capture

Cited by 31 publications

References 35 publications

Carbon Dioxide Absorption by the Imidazolium–Amino Acid Ionic Liquids, Kinetics, and Mechanism Approach

Carbon Dioxide Absorption by the Imidazolium–Amino Acid Ionic Liquids, Kinetics, and Mechanism Approach

CO₂ and CH₄ Sorption by [N_4 4 4 4][NTf₂] Ionic Liquid Using Quartz Crystal Microbalance Experiments under Different Pressures

CO2 absorption into aqueous blends of ionic liquid and amine in a membrane contactor

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Property of diethanolamine glycinate ionic liquid and its performance for CO2 capture

Cited by 31 publications

References 35 publications

Carbon Dioxide Absorption by the Imidazolium–Amino Acid Ionic Liquids, Kinetics, and Mechanism Approach

Carbon Dioxide Absorption by the Imidazolium–Amino Acid Ionic Liquids, Kinetics, and Mechanism Approach

CO2 and CH4 Sorption by [N4 4 4 4][NTf2] Ionic Liquid Using Quartz Crystal Microbalance Experiments under Different Pressures

CO2 absorption into aqueous blends of ionic liquid and amine in a membrane contactor

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Product

Resources

About

CO₂ and CH₄ Sorption by [N_4 4 4 4][NTf₂] Ionic Liquid Using Quartz Crystal Microbalance Experiments under Different Pressures