Ionic Liquids for Carbon Dioxide Capture

Mesbah, Mohammad; Pouresmaeil, Shabnam; Galledari, Sanaz Abouali; Momeni, Masumeh; Shahsavari, Shohreh; Soroush, Ebrahim

doi:10.1007/978-3-030-29337-6_5

Cited by 4 publications

(3 citation statements)

References 131 publications

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“…6 Ever since Blanchard et al 7 reported that [bmim][PF 6 ] can be used as a physical absorbent to absorb CO 2 , more and more ILs have been reported for CO 2 absorption. 8,9 However, ILs have the disadvantages of poor biodegradability, potential toxicity, expensive raw materials, and complex synthetic routes, which limit their industrial application. Abbott et al 10 bond donor (HBD) and a hydrogen bond acceptor (HBA), namely deep eutectic solvents (DESs), whose properties are similar to those of ILs.…”

Section: ■ Introductionmentioning

confidence: 99%

“…Ionic liquids (ILs) have received a great deal of attention over the past 20 years as potential substitutes for organic amine solvents because of their advantages such as low vapor pressure, high thermal stability, strong solubility, and designable structure . Ever since Blanchard et al reported that [bmim][PF 6 ] can be used as a physical absorbent to absorb CO 2 , more and more ILs have been reported for CO 2 absorption. , However, ILs have the disadvantages of poor biodegradability, potential toxicity, expensive raw materials, and complex synthetic routes, which limit their industrial application. Abbott et al proposed a mixture composed of a hydrogen bond donor (HBD) and a hydrogen bond acceptor (HBA), namely deep eutectic solvents (DESs), whose properties are similar to those of ILs.…”

Section: Introductionmentioning

confidence: 99%

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Comprehensive Evaluation of a Deep Eutectic Solvent Based CO₂ Capture Process through Experiment and Simulation

Luo

Liu

Chen

et al. 2021

ACS Sustainable Chem. Eng.

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As an emerging green and sustainable solvent, a deep eutectic solvent (DES) applied to the carbon capture process is considered to be a promising absorbent. This work aims to comprehensively evaluate the potential and effectiveness of DESs for CO2 capture. First, a hydrophobic DES, which is composed of tetrabutylammonium bromide as the hydrogen bond acceptor (HBA) and decanoic acid as the hydrogen bond donor (HBD) with a molar ratio of 1:2, was screened out from 280 DESs by the conductor-like screening models–segment activity coefficient (COSMO-SAC) model. Then, quantum chemistry methods were used to investigate the interaction mechanism between the DES and CO2. The results show that the interactions between CO2 and the DES are mainly weak hydrogen bonds and van der Waals dispersion attraction forces. Next, gas–liquid equilibrium experiments were performed to investigate the effects of temperature and pressure, the types of HBAs and HBDs, and the molar ratios of HBA to HBD on the solubility of CO2. The results show that the process of DES absorbing CO2 obeys Henry’s law and confirm the reliability of the COSMO-SAC model prediction. Finally, a rigorous rate-based model for the DES-based postcombustion CO2 capture process was simulated, and the life cycle environmental sustainability was evaluated and compared with that of the traditional solvent monoethanolamine, confirming the advantages of the negligible vapor pressure, thermal stability, and low ecological toxicity of the DES. This study provides a technical reference for applying new solvents developed in the laboratory to practical industrial processes.

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Section: ■ Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Comprehensive Evaluation of a Deep Eutectic Solvent Based CO₂ Capture Process through Experiment and Simulation

Luo

Liu

Chen

et al. 2021

ACS Sustainable Chem. Eng.

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“…In recent years, gas separations using ionic liquids have gained increased interest. Ionic liquids have been proposed as an effective medium in combatting greenhouse gases through techniques of gas capture and gas-mixture separations. − While carbon dioxide contributes to nearly 80% of greenhouse gas emissions in the United States, other gases have relatively high emission rates as well; some of the more potent greenhouse gases emitted include fluorinated gases in an emission abundance of nearly 3% (data reported in 2019) . Fluorinated gases are commonly utilized as refrigerants, propellants, fire retardants, and foam blowing agents. , The high global warming potential (GWP) of some commonly used fluorinated gases has called for their capture, separation, recycle, or destruction .…”

Section: Introductionmentioning

confidence: 99%

Thermal Conductivity of 1-Alkyl-3-methylimidazolium [Tf₂N] Ionic Liquids and Compressed 1,1,1,2-Tetrafluoroethane (R-134a)

Al‐Barghouti

Scurto

2022

J. Chem. Eng. Data

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The thermal conductivities of mixtures of ionic liquids (ILs) and fluorocarbon gases are necessary for the design of a variety of engineering and separation applications. Here, a transient hot-wire technique was used to measure the liquid thermal conductivities of 1-ethyl-3-methylimidazolium bis(trifluoromethylsulfonyl)amide ([EMIm][Tf2N]) and 1-n-hexyl-3-methylimidazolium bis(trifluoromethylsulfonyl)amide ([HMIm][Tf2N]) in vapor–liquid equilibrium with the hydrofluorocarbon gas, 1,1,1,2-tetrafluoroethane (R-134a), at (298.15, 323.15, 348.15) K for [HMIm][Tf2N] and (298.15, 348.15, 398.15) K for [EMIm][Tf2N] and pressures up to 28 bar. The thermal conductivity of the gas-saturated ionic liquid exhibits a very small and relatively linear decrease with increasing pressure (composition) of R-134a even to relatively high compositions (∼80% mol). Only at very high molar compositions of the gas (∼90+% mol) does the thermal conductivity significantly decrease toward that of the value of pure saturated liquid R-134a. However, no simple mixing rule of the pure component properties could correlate the trends in composition. As some potential applications require higher temperatures, the system of [EMIm][Tf2N]/R-134a was measured at 398.15 K. Generally, a longer alkyl-chain length on the cation, such as [HMIm][Tf2N], experiences a steeper decrease in thermal conductivity with increasing R-134a composition than with the [EMIm] cation.

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Implementation of the Deep Eutectic Solvent, Choline Urea Chloride (1:2), to Evaluate the Sustainability of its Application During CO2 Capture

Romero-García,

Ramírez-Márquez,

Sánchez-Ramírez

et al. 2023

Process Integr Optim Sustain

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Ionic Liquids for Carbon Dioxide Capture

Cited by 4 publications

References 131 publications

Comprehensive Evaluation of a Deep Eutectic Solvent Based CO₂ Capture Process through Experiment and Simulation

Comprehensive Evaluation of a Deep Eutectic Solvent Based CO₂ Capture Process through Experiment and Simulation

Thermal Conductivity of 1-Alkyl-3-methylimidazolium [Tf₂N] Ionic Liquids and Compressed 1,1,1,2-Tetrafluoroethane (R-134a)

Implementation of the Deep Eutectic Solvent, Choline Urea Chloride (1:2), to Evaluate the Sustainability of its Application During CO2 Capture

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Ionic Liquids for Carbon Dioxide Capture

Cited by 4 publications

References 131 publications

Comprehensive Evaluation of a Deep Eutectic Solvent Based CO2 Capture Process through Experiment and Simulation

Comprehensive Evaluation of a Deep Eutectic Solvent Based CO2 Capture Process through Experiment and Simulation

Thermal Conductivity of 1-Alkyl-3-methylimidazolium [Tf2N] Ionic Liquids and Compressed 1,1,1,2-Tetrafluoroethane (R-134a)

Implementation of the Deep Eutectic Solvent, Choline Urea Chloride (1:2), to Evaluate the Sustainability of its Application During CO2 Capture

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Product

Resources

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Comprehensive Evaluation of a Deep Eutectic Solvent Based CO₂ Capture Process through Experiment and Simulation

Comprehensive Evaluation of a Deep Eutectic Solvent Based CO₂ Capture Process through Experiment and Simulation

Thermal Conductivity of 1-Alkyl-3-methylimidazolium [Tf₂N] Ionic Liquids and Compressed 1,1,1,2-Tetrafluoroethane (R-134a)