scholarly journals Ionic Liquids/Deep Eutectic Solvents-Based Hybrid Solvents for CO2 Capture

Crystals ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 978
Author(s):  
Yanrong Liu ◽  
Zhengxing Dai ◽  
Fei Dai ◽  
Xiaoyan Ji
Keyword(s):  
Ionic Liquids ◽  
Co2 Capture ◽  
Deep Eutectic Solvents ◽  
Literature Survey ◽  
Co2 Solubility ◽  
Organic Hybrid ◽  
Henry's Constants ◽  
Survey Results

The CO2 solubilities (including CO2 Henry’s constants) and viscosities in ionic liquids (ILs)/deep eutectic solvents (DESs)-based hybrid solvents were comprehensively collected and summarized. The literature survey results of CO2 solubility illustrated that the addition of hybrid solvents to ILs/DESs can significantly enhance the CO2 solubility, and some of the ILs-based hybrid solvents are super to DESs-based hybrid solvents. The best hybrid solvents of IL–H2O, IL–organic, IL–amine, DES–H2O, and DES–organic are [DMAPAH][Formate] (2.5:1) + H2O (20 wt %) (4.61 mol/kg, 298 K, 0.1 MPa), [P4444][Pro] + PEG400 (70 wt %) (1.61 mol/kg, 333.15 K, 1.68 MPa), [DMAPAH][Formate] (2.0:1) + MEA (30 wt %) (6.24 mol/kg, 298 K, 0.1 MPa), [TEMA][Cl]-GLY-H2O 1:2:0.11 (0.66 mol/kg, 298 K, 1.74 MPa), and [Ch][Cl]-MEA 1:2 + DBN 1:1 (5.11 mol/kg, 298 K, 0.1 MPa), respectively. All of these best candidates show higher CO2 solubility than their used pure ILs or DESs, evidencing that IL/DES-based hybrid solvents are remarkable for CO2 capture. For the summarized viscosity results, the presence of hybrid solvents in ILs and DESs can decrease their viscosities. The lowest viscosities acquired in this work for IL–H2O, IL–amine, DES–H2O, and DES–organic hybrid solvents are [DEA][Bu] + H2O (98.78 mol%) (0.59 mPa·s, 343.15 K), [BMIM][BF4] + DETA (94.9 mol%) (2.68 mPa·s, 333.15 K), [L-Arg]-GLY 1:6 + H2O (60 wt %) (2.7 mPa·s, 353.15 K), and [MTPP][Br]-LEV-Ac 1:3:0.03 (16.16 mPa·s, 333.15 K) at 0.1 MPa, respectively.

Deep eutectic solvents composed of bio-phenol-derived superbase ionic liquids and ethylene glycol for CO2 capture

2022 ◽  
Author(s):  
Ze Wang ◽  
Zonghua Wang ◽  
Huang Xin ◽  
Dezhong Yang ◽  
Congyi Wu ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Ethylene Glycol ◽  
Co2 Capture ◽  
Deep Eutectic Solvents ◽  
High Co2

Deep eutectic solvents (DESs) formed by bio-phenol-derived superbase ionic liquids (ILs) and ethylene glycol (EG) perform a high CO2 capacity, up to 1.0 mol CO2/ mol DESs, which is much...

scholarly journals Ionic liquids/deep eutectic solvents for CO2 capture: Reviewing and evaluating

2020 ◽  
Author(s):  
Yanrong Liu ◽  
Zhengxing Dai ◽  
Zhibo Zhang ◽  
Shaojuan Zeng ◽  
Fangfang Li ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Co2 Capture ◽  
Deep Eutectic Solvents

scholarly journals Prediction of the Solubility of CO2 in Imidazolium Ionic Liquids Based on Selective Ensemble Modeling Method

Processes ◽  
2020 ◽  
Vol 8 (11) ◽  
pp. 1369
Author(s):  
Luyue Xia ◽  
Shanshan Liu ◽  
Haitian Pan
Keyword(s):  
Ionic Liquids ◽  
Co2 Capture ◽  
Entropy Method ◽  
Modeling Method ◽  
Ensemble Model ◽  
Ensemble Modeling ◽  
Co2 Solubility ◽  
Fully Integrated ◽  
Imidazolium Ionic Liquids ◽  
Selective Ensemble

Solubility data is one of the essential basic data for CO2 capture by ionic liquids. A selective ensemble modeling method, proposed to overcome the shortcomings of current methods, was developed and applied to the prediction of the solubility of CO2 in imidazolium ionic liquids. Firstly, multiple different sub–models were established based on the diversities of data, structural, and parameter design philosophy. Secondly, the fuzzy C–means algorithm was used to cluster the sub–models, and the collinearity detection method was adopted to eliminate the sub–models with high collinearity. Finally, the information entropy method integrated the sub–models into the selective ensemble model. The validation of the CO2 solubility predictions against experimental data showed that the proposed ensemble model had better performance than its previous alternative, because more effective information was extracted from different angles, and the diversity and accuracy among the sub–models were fully integrated. This work not only provided an effective modeling method for the prediction of the solubility of CO2 in ionic liquids, but also provided an effective method for the discrimination of ionic liquids for CO2 capture.

Why are Ionic Liquids Attractive for CO2 Absorption? An Overview

2009 ◽  
Vol 62 (4) ◽  
pp. 298 ◽  
Author(s):  
Junhua Huang ◽  
Thomas Rüther
Keyword(s):  
Ionic Liquids ◽  
Co2 Capture ◽  
Power Plants ◽  
Cost Effective ◽  
Absorption Capacity ◽  
Selective Absorption ◽  
Co2 Absorption ◽  
Co2 Solubility ◽  
Capture Process ◽  
Advantages And Disadvantages

As the climate debate is hotting up, so is the (re)search for finding powerful new materials for the efficient and cost-effective removal of CO2 from flue-gas streams from power plants and other emission sources. Ionic liquids (ILs), exhibiting higher CO2 solubility than conventional organic solvents, have received considerable interest as new CO2 absorbents. The present paper evaluates the advantages and disadvantages of ILs, and provides an overview of the recent developments of ILs for CO2 capture. In conventional ILs, CO2 is absorbed by occupying the free space between the ions through physical absorption mechanisms. As another promising strategy, task-specific ILs have been studied that, by attaching functional groups to the ions, allow the formation of chemical bonds to improve the overall absorption capacity during the CO2 capture process. Other strategies include using ILs as reaction media or as selective absorption materials.

scholarly journals Measurement of CO2 Solubility in Amine Based Deep Eutectic Solvents

2020 ◽  
Vol 11 (9) ◽  
pp. 438-441
Author(s):  
Khatereh Ali Pishro ◽  
◽  
Ghulam Murshid ◽  
Farouq Sabri Mjalli ◽  
Jamil Naser
Keyword(s):  
Climate Change ◽  
Co2 Capture ◽  
Co2 Emission ◽  
Scientific Community ◽  
Deep Eutectic Solvents ◽  
Ambient Air ◽  
Co2 Solubility ◽  
Average Temperature ◽  
Climate Systems ◽  
Carbon Dioxide Co2

The climate change assumes the warming of the climate systems due to increase of global average temperature to the observed increase of the greenhouse gas (GHG) concentration in the atmosphere. Carbon dioxide (CO2) is considered the most important GHG. The processes of CO2 capture are gaining a great attention on the scientific community as an alternative for decreasing CO2 emission and reducing its concentration in ambient air. In this study, we report a new deep eutectic solvents (DESs) made of monoethanolamine hydrochloride-diethylenetriamine exhibits a great candidate for CO2 capture. We developed solubility and physical properties studies at different pressures and temperatures, and regression model was well in agreement with the calculated αCO2 values with R-square: 0.976. The strong properties of DESs in CO2 capture make them as a suitable solvent for absorption CO2 to replace the conventional amine based scrubbing technology and are worth for further exploration.

Investigation of Mixed MEA-Based Solvents Featuring Ionic Liquids and NMP for CO2 Capture: Experimental Measurement of CO2 Solubility and Thermophysical Properties

2021 ◽  
Vol 66 (2) ◽  
pp. 899-914
Author(s):  
Mojgan Ebrahiminejadhasanabadi ◽  
Wayne Michael Nelson ◽  
Paramespri Naidoo ◽  
Amir H. Mohammadi ◽  
Deresh Ramjugernath
Keyword(s):  
Ionic Liquids ◽  
Co2 Capture ◽  
Experimental Measurement ◽  
Thermophysical Properties ◽  
Co2 Solubility

Research Trends of Carbon Dioxide Capture using Ionic Liquids and Aqueous Amine-Ionic Liquids Mixtures

2016 ◽  
Vol 13 (1) ◽  
pp. 53
Author(s):  
Siti Nabihah Jamaludin ◽  
Ruzitah Mohd Salleh
Keyword(s):  
Ionic Liquids ◽  
Co2 Capture ◽  
Membrane Separation ◽  
Carbon Dioxide Capture ◽  
Global Climate ◽  
Research Trends ◽  
Co2 Absorption ◽  
Absorption Process ◽  
Chemical Absorption ◽  
Factors Influencing

Anthropogenic CO2 emissions has led to global climate change and widely contributed to global warming since its concentration has been increasing over time. It has attracted vast attention worldwide. Currently, the different CO2 capture technologies available include absorption, solid adsorption and membrane separation. Chemical absorption technology is regarded as the most mature technology and is commercially used in the industry. However, the key challenge is to find the most efficient solvent in capturing CO2. This paper reviews several types of CO2 capture technologies and the various factors influencing the CO2 absorption process, resulting in the development of a novel solvent for CO2 capture.

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