Performance of a hybrid solvent of amino acid and ionic liquid for CO 2 capture

Li, Wei; Zhang, Xiaoli; Lu, Bi-Hong; Sun, C. T.; Li, Sujing; Zhang, Shihan

doi:10.1016/j.ijggc.2015.08.014

Cited by 19 publications

(16 citation statements)

References 19 publications

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“…These results also indicate that chemical reaction between the ionic liquid and CO 2 can be reversed at high temperature (140 °C) and that the solvent can be reused during the absorption process. The regeneration efficiency of a combined physical- and chemical-absorbent solvent (an amino-acid-based ionic liquid) is reported by Li et al, and according to their findings, the absorbent lost 19% of its CO 2 absorption capacity after the first regeneration cycle. In contrast, the regeneration efficiency of the absorbent in this work was approximately 95% after the first cycle and 87.9% after three cycles.…”

Section: Resultsmentioning

confidence: 87%

Optimization and Characterization of an Amino Acid Ionic Liquid and Polyethylene Glycol Blend Solvent for Precombustion CO₂ Capture: Experiments and Model Fitting

Usman

Huang

et al. 2016

Ind. Eng. Chem. Res.

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Amino acid ionic liquids are green solvents with low toxicities and properties suitable for precombustion CO 2 capture, such as high CO 2 absorption, good thermal stability, and negligible vapor pressure. However, their high viscosities and relatively high costs have hampered their industrial applications. In this work, we systematically studied the amino acid ionic liquid tetrabutylphosphonium glycinate ([P 4444 ][Gly]) and its blends with the low-cost and less viscous cosolvent poly(ethylene glycol) (PEG400). The concentration of the blend solvent was optimized with respect to CO 2 solubility, regeneration efficiency, and cyclic capacity. The solubilities of CO 2 in [P 4444 ][Gly], PEG400, and their blends of four different concentrations were measured experimentally in the temperature range of 60−140 °C and up to a pressure of 17 bar. The results showed that the CO 2 solubility increased with increasing ionic liquid concentration in the blend and decreased with increasing temperature. The optimum CO 2 absorption was determined to occur at 30 wt % of [P 4444 ][Gly] in the blend. The regeneration study of the 30 wt % [P 4444 ][Gly]−70 wt % PEG400 blend for three cycles verified its reusability in the process and confirmed that the reaction between [P 4444 ][Gly] and CO 2 can be reversed at 140 °C. The CO 2 absorption capacity of the blend absorbent was found to be up to a loading of 1.23 mol of CO 2 /mol of absorbent. The parameter fitting of the experimental data using empirical correlations was evaluated, and these correlations were developed in particular to predict the blend solvent of an amino acid ionic liquid−PEG400 system based on the ionic liquid concentration and temperature.

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Section: Resultsmentioning

confidence: 87%

Optimization and Characterization of an Amino Acid Ionic Liquid and Polyethylene Glycol Blend Solvent for Precombustion CO₂ Capture: Experiments and Model Fitting

Usman

Huang

et al. 2016

Ind. Eng. Chem. Res.

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“…Amino acid-based ILs have higher CO 2 loading (i.e., 0.2–0.8 mol of CO 2 /mol of IL) in comparison to the MEA (i.e., 0.5 mol of CO 2 /mol of amine) and inorganic salts of amino acids (i.e., 0.1–0.7 mol of CO 2 /mol of solvent). In contrast to the positive aspects of the ILs, it has to be mentioned that at high concentrations, amino acids start to salt out . Amino acid ILs are good candidates to replace the conventional solvents.…”

Section: Amino Acids As Co2 Capturing Agentmentioning

confidence: 99%

“…In contrast to the positive aspects of the ILs, it has to be mentioned that at high concentrations, amino acids start to salt out. 102 Amino acid ILs are good candidates to replace the conventional solvents. However, there is not sufficient data about their properties and performance.…”

Section: Amino Acids As Co 2 Capturing Agentmentioning

confidence: 99%

Advanced Amino Acid-Based Technologies for CO₂ Capture: A Review

Sefidi

Luis

2019

Ind. Eng. Chem. Res.

121

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Capture and utilization or storage of CO2 have been considered as the primary options to reduce the impact on the climate caused by CO2 emissions. Several technological approaches have been proposed depending on the point of actuation (precombustion, postcombustion, or oxyfuel combustion), but absorption processes are still the most extended solution implemented in the industry. Alkanolamines are typical solvents used for CO2 capture, even though they have a noticeable negative impact on the environment. Amino acids and their salts have been appointed as alternative solvents since their functional group is similar to that of alkanolamines but presenting better properties. In addition, they show very good performance in CO2 capture. This manuscript reviews the state of the art of the use of amino acids in CO2 capture and the main technologies involving the application of these solvents.

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“…The main advantage of amino acid-based systems over conventional alkanolamines relies on high stability to oxidative degradation, high chemical reactivity with CO 2 , low vapour pressures (compatible with temperature of flue gases), and high surface tension (fundamental on the design of membranes). Various studies exist when an inorganic cation is used [6][7][8][9][10][11][12][13][14][15][16][17][18]. Here a selection will be emphasized to establish the structure of amino acid/CO 2 absorption-desorption properties relationship (Figure 4, Table 1).…”

Section: Amino Acidsmentioning

confidence: 99%

Bio-inspired Systems for Carbon Dioxide Capture, Sequestration and Utilization

Carrera¹,

Branco²,

daPonte³

2017

Recent Advances in Carbon Capture and Storage

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This chapter reviews the study and development of biological, enzymatic and biomolecular systems for carbon dioxide capture and further sequestration or even utilization. Regardless of the interest on the use of the captured CO 2 as C1 synthon on the manufacture of added-value compounds, there is a tremendous unbalance between the requirements of the contemporary society (leading to a massive production of carbon dioxide) and the framework of commercialization of the products from CO 2 utilization. In this context, viable options are storage as a solid in the form of calcium or magnesium carbonate and conversion into other energetic frameworks. In addition, it is important to highlight that the conventional energy resources are progressively being replaced by renewable resources. While the change in energetic paradigm is not accomplished, systems that capture and convert carbon dioxide are highly sought. To this end, bio-inspired systems will be presented, starting from the use of compounds from the chiral pool, such as amino acids, saccharides and related bio-polymers, involved in the physical and chemical capture, sequestration and/or utilization of CO 2. Additionally, enzymatic systems are presented in the context of sequestration of CO 2 in the form of solid carbonates or even utilization of this C1 synthon in the preparation of fuels and commodity chemicals. Carbonic anhydrase is by far the most studied enzyme, as it catalyses the inter-conversion between CO 2 and hydrogencarbonate in an effective mode. The biological option comprises the utilization of methanogens, acetogens and other organisms leading to the formation of added-value compounds. Most of the described systems are based on microbial electro-synthesis model and microbial carboncapture cell prototypes.

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Performance of a hybrid solvent of amino acid and ionic liquid for CO 2 capture

Cited by 19 publications

References 19 publications

Optimization and Characterization of an Amino Acid Ionic Liquid and Polyethylene Glycol Blend Solvent for Precombustion CO₂ Capture: Experiments and Model Fitting

Optimization and Characterization of an Amino Acid Ionic Liquid and Polyethylene Glycol Blend Solvent for Precombustion CO₂ Capture: Experiments and Model Fitting

Advanced Amino Acid-Based Technologies for CO₂ Capture: A Review

Bio-inspired Systems for Carbon Dioxide Capture, Sequestration and Utilization

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Performance of a hybrid solvent of amino acid and ionic liquid for CO 2 capture

Cited by 19 publications

References 19 publications

Optimization and Characterization of an Amino Acid Ionic Liquid and Polyethylene Glycol Blend Solvent for Precombustion CO2 Capture: Experiments and Model Fitting

Optimization and Characterization of an Amino Acid Ionic Liquid and Polyethylene Glycol Blend Solvent for Precombustion CO2 Capture: Experiments and Model Fitting

Advanced Amino Acid-Based Technologies for CO2 Capture: A Review

Bio-inspired Systems for Carbon Dioxide Capture, Sequestration and Utilization

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Optimization and Characterization of an Amino Acid Ionic Liquid and Polyethylene Glycol Blend Solvent for Precombustion CO₂ Capture: Experiments and Model Fitting

Optimization and Characterization of an Amino Acid Ionic Liquid and Polyethylene Glycol Blend Solvent for Precombustion CO₂ Capture: Experiments and Model Fitting

Advanced Amino Acid-Based Technologies for CO₂ Capture: A Review