Protic guanidine isothiocyanate plus acetamide deep eutectic solvents with low viscosity for efficient NH3 capture and NH3/CO2 separation

Deng, Dongshun; Deng, Xiaoxia; Duan, Xiuzhi; Gong, Lei

doi:10.1016/j.molliq.2020.114719

Cited by 49 publications

(19 citation statements)

References 44 publications

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“…12 studies have been focused on physical-based DESs since 2021, and their specific names, together with other information, are summarized in Table 3 . Among them, two are newly synthesized ( Deng et al, 2021 ; Pishro et al, 2021 ), while others are the previously synthesized DESs with additional efforts on e.g., high-pressure CO 2 solubility ( Haghbakhsh et al, 2021 ), the effects of water content ( Liu et al, 2022 ), pressure/temperature/stirring rate/water content ( Aboshatta and Magueijo, 2021 ), pressure/temperature/water content ( Yan et al, 2022 ), HBA:HBD molar ratios ( Luo et al, 2021 ; Qin et al, 2021 ), HBA and HBD nature ( Rabhi et al, 2020 ; Haider et al, 2021 ; Luo et al, 2021 ; Mihăilă et al, 2021 ) on the CO 2 solubility.…”

Section: Literature Survey Data Collection Properties Perdition and I...mentioning

confidence: 99%

Reviewing and screening ionic liquids and deep eutectic solvents for effective CO2 capture

Foorginezhad

2022

Front. Chem.

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CO2 capture is essential for both mitigating CO2 emissions and purifying/conditioning gases for fuel and chemical production. To further improve the process performance with low environmental impacts, different strategies have been proposed, where developing liquid green absorbent for capturing CO2 is one of the effective options. Ionic liquids (IL)/deep eutectic solvents (DES) have recently emerged as green absorbents with unique properties, especially DESs also benefit from facile synthesis, low toxicity, and high biodegradability. To promote their development, this work summarized the recent research progress on ILs/DESs developed for CO2 capture from the aspects of those physical- and chemical-based, and COSMO-RS was combined to predict the properties that are unavailable from published articles in order to evaluate their performance based on the key properties for different IL/DES-based technologies. Finally, top 10 ILs/DESs were listed based on the corresponding criteria. The shared information will provide insight into screening and further developing IL/DES-based technologies for CO2 capture.

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Section: Literature Survey Data Collection Properties Perdition and I...mentioning

confidence: 99%

Reviewing and screening ionic liquids and deep eutectic solvents for effective CO2 capture

Foorginezhad

2022

Front. Chem.

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“…Similar to the case of ILs for NH 3 separation, DESs with hydrogen-bonding or weak-acidic groups are also envisioned to be able to absorb NH 3 efficiently, selectively, and reversibly. Therefore, DESs containing polyhydric alcohols, − protic ionic salts, − and weak protic acids ,− were specifically designed for NH 3 separation.…”

Section: Introductionmentioning

confidence: 99%

Designing Low-Viscosity Deep Eutectic Solvents with Multiple Weak-Acidic Groups for Ammonia Separation

Cao

Zhang

et al. 2021

ACS Sustainable Chem. Eng.

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Developing NH 3 separation technology with high efficiency is very meaningful for the advancement of the NH 3 synthesis process. In this work, a new class of deep eutectic solvents (DESs) were designed by pairing N,N,N′,N′-tetramethyl-1,3-propanediamine dihydrochloride ([TMPDA]Cl 2 ) with phenol (PhOH) at the molar ratios of 1:3∼7. [TMPDA]Cl 2 + PhOH DESs have multiple weak-acidic groups and viscosities of as low as 48.1 cP at 298.2 K. They also exhibit excellent performance for the separation of NH 3 , showing not only efficient and selective but also reversible absorption of NH 3 . Especially, the solubilities of NH 3 in [TMPDA]Cl 2 + PhOH DESs at low pressures can reach 4.49 mol/kg of NH 3 at 298.2 K and 13.3 kPa, being superior to those of most of the DESs and ILs reported in the literature. The mechanism of NH 3 absorption was further elucidated by quantum chemistry calculations and 1 H NMR spectra. It is validated that the efficient absorption of NH 3 in DESs origins from the strong interaction of multiple weak-acidic groups of DESs with NH 3 .

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“…GI/acetamide (1:2) DES also exhibited fast NH 3 absorption owing to its low viscosity (21.05 mPa. s at 298.2 K), and the NH 3 pressure was drastically reduced to a constant within around 100 s [ 120 ]. NH 3 absorption capacity to achieve equilibrium was less than 60 s in EACl/phenol DESs, mainly due to their relatively low viscosities [ 118 ].…”

Section: Capture Of Acidic Gasesmentioning

confidence: 99%

Utilization of Deep Eutectic Solvents to Reduce the Release of Hazardous Gases to the Atmosphere: A Critical Review

2020

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The release of certain gases to the atmosphere is controlled in many countries owing to their negative impact on the environment and human health. These gases include carbon dioxide (CO2), sulfur oxides (SOx), nitrogen oxides (NOx), hydrogen sulfide (H2S) and ammonia (NH3). Considering the major contribution of greenhouse gases to global warming and climate change, mitigation of these gases is one of the world’s primary challenges. Nevertheless, the commercial processes used to capture these gases suffer from several drawbacks, including the use of volatile solvents, generation of hazardous byproducts, and high-energy demand. Research in green chemistry has resulted in the synthesis of potentially green solvents that are non-toxic, efficient, and environmentally friendly. Deep eutectic solvents (DESs) are novel solvents that upon wise choice of their constituents can be green and tunable with high biocompatibility, high degradability, and low cost. Consequently, the capture of toxic gases by DESs is promising and environmentally friendly and has attracted much attention during the last decade. Here, we review recent results on capture of these gases using different types of DESs. The effect of different parameters, such as chemical structure, molar ratio, temperature, and pressure, on capture efficiency is discussed.

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Protic guanidine isothiocyanate plus acetamide deep eutectic solvents with low viscosity for efficient NH3 capture and NH3/CO2 separation

Cited by 49 publications

References 44 publications

Reviewing and screening ionic liquids and deep eutectic solvents for effective CO2 capture

Reviewing and screening ionic liquids and deep eutectic solvents for effective CO2 capture

Designing Low-Viscosity Deep Eutectic Solvents with Multiple Weak-Acidic Groups for Ammonia Separation

Utilization of Deep Eutectic Solvents to Reduce the Release of Hazardous Gases to the Atmosphere: A Critical Review

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