Applicability of Deep Eutectic Solvents in Oil and Gas Processing Fields for CO<sub>2</sub> Control

Haq, Ihtisham Ul; Lal, Bhajan; Zaini, Dzulkarnain

doi:10.1002/ceat.202100515

Cited by 8 publications

(4 citation statements)

References 92 publications

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“…Recently, gas hydrate has been nominated as a medium for CO 2 capturing, mostly from flue gas as a post-combustion CO 2 capturing scenario [82][83][84]. Hydrate-based separation is attracting attention as a new capturing technology due to its lower energy requirement compared to conventional capturing technology [85,86]. Furthermore, this technology uses water as the main chemical with a small portion of additives as a promoter [87,88].…”

Section: Gas Hydrate-based Technology For Separation Of Comentioning

confidence: 99%

RETRACTED: Gas Hydrate-Based CO2 Capture: A Journey from Batch to Continuous

Rehman

Lal

2022

Energies

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Future carbon dioxide capture and storage (CCS) will be impacted by the new scenario in which the energy supply rapidly shifts from oil-based to natural gas-based means, but this shift also presents an opportunity to utilize natural gas hydrates (NGHs). This review discusses the present state of CCS research and development, the advantages of the various approaches, and the barriers to commercialization that exist today. It also provides an evaluation of certain practical small- and large-scale CCS applications. The high initial investment, as well as ongoing maintenance costs, plague today’s commercially accessible CO2 capture technologies, including absorption, adsorption, membranes, and cryogenic separation. Gas hydrate-based capture has the potential to become the dominant method for CO2 separation because of the high recovery rates and purity it provides. Hydrate-based technologies, including CO2 capture, CO2 separation, and transportation, can also be used to reduce greenhouse gas emissions and have excellent application potential. Despite this, the potential of technology based on gas hydrates to help reduce the effects of climate change in the future has received little attention. This study discusses cosmopolitan energy provision and environmental challenges and conversions, and the role of gas hydrates in the carbon cycle. This paper summarizes the state-of-the-art developments in hydrate-based reactors, thereby providing a perspective on the roles of NGHs in the future energy supply and climate change mitigation. In all these areas, we focus on identifying future CCS challenges and the technological development risk in gas hydrate-based systems, which should be highlighted in the next several decades.

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Section: Gas Hydrate-based Technology For Separation Of Comentioning

confidence: 99%

RETRACTED: Gas Hydrate-Based CO2 Capture: A Journey from Batch to Continuous

Rehman

Lal

2022

Energies

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“…Carbon dioxide absorption in DESs has been extensively studied in the past decade. − ,− Previously, we have investigated the capacity of CO 2 absorption and associated mechanism for a series of anion-functionalized protic ILs, i.e., [DBUH][X] . We found that the basicity of comprising anion (X – ) of the IL dictates the maximum absorption capacity as well as kinetic and mechanism.…”

Section: Resultsmentioning

confidence: 99%

Acidity Scale in a Choline Chloride- and Ethylene Glycol-Based Deep Eutectic Solvent and Its Implication on Carbon Dioxide Absorption

et al. 2023

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An equilibrium acidity (pK a ) scale that comprises 16 Bronsted organic acids, including phenols, carboxylic acids, azoles, and phenylmalononitriles, was established in a choline chloride/EG-based deep eutectic solvent (DES) ([Ch][Cl]:2EG) by ultraviolet−visible (UV−Vis) spectroscopic methods. The established acidity scale spans about 6 pK units in the DES, which is similar to that for these acids in water. The acidity comparisons and linear correlations between the DES and other solvents show that the solvent property of [Ch][Cl]:2EG is quite different from those of amphiphilic protic and dipolar aprotic molecular solvents. The carbon dioxide absorption capabilities as well as apparent absorption kinetics for a series of anion-functionalized DESs ([Ch][X]:2EG) were measured, and the results show that the basicity of comprising anion [X] of choline salt is essential for the maximum carbon dioxide absorption capacity, i.e., a stronger basicity leads to a greater absorption capacity. The possible absorption mechanisms for carbon dioxide absorption in these DESs were also discussed based on the spectroscopic evidence.

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“…20 For example, in the petrochemical and natural gas sectors, DESs have better properties than other traditional solvents. 21 In addition, DESs have a wide range of applications in the capture of gases such as CO 2 , H 2 S, SO 2 , etc. 22−30 Especially in CO 2 capture, DESs have higher absorption, lower price, lower toxicity, and better renewability than the other solvents.…”

Section: Introductionmentioning

confidence: 99%

“…Because DESs have many advantages such as low vapor pressure, high thermal stability, adjustable structure, degradability, low toxicity, low cost, simple synthesis, etc., , they are widely used in chemical synthesis, material preparation, biological conversion, and other fields . For example, in the petrochemical and natural gas sectors, DESs have better properties than other traditional solvents . In addition, DESs have a wide range of applications in the capture of gases such as CO 2 , H 2 S, SO 2 , etc. − Especially in CO 2 capture, DESs have higher absorption, lower price, lower toxicity, and better renewability than the other solvents.…”

Section: Introductionmentioning

confidence: 99%

Advances in CO₂ Absorption by Deep Eutectic Solvents

Wang,

Zhang,

et al. 2024

J. Chem. Eng. Data

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With global warming, more and more environmental problems have begun to appear, and people have gradually come to realize that the reckless emission of greenhouse gases will lead to a drastic deterioration to the ecological environment. In order to solve the environmental problems caused by global warming, more and more scientists have begun to work on improving the current situation of greenhouse gases emissions. CO 2 is a greenhouse gas that can be found everywhere in our daily life, and its contribution to the total greenhouse gas accounts for about 50%. Furthermore, the concentration of CO 2 is increasing with the advancement of human society. The main reason for the growth of CO 2 concentrations in the atmosphere is the extensive use of fossil fuels. Therefore, it is necessary to absorb CO 2 from industrial emissions. Many CO 2 capture methods have been proposed. As the research progressed, scientists found that deep eutectic solvents (DESs) show a bright future for CO 2 capture due to their advantages like high CO 2 absorption capacity, good solvent renewability, low price, less pollution, etc. Many articles have reported the absorption of CO 2 using DESs and in situ conversion of absorbed CO 2 . This article reviews the progress of DESs in absorbing CO 2 . DESs as absorbents for CO 2 absorption are discussed following the aspects of quaternary-ammonium-salt-based DESs, azole-based DESs, amine-and amino-acidbased DESs, ionic-liquid-based DESs, ternary DESs, and other types of DESs for absorbing CO 2 . DESs cooperate with other methods to absorb CO 2 . Lastly, in situ conversions of CO 2 in DESs are also discussed for regenerating DESs for energy saving. This article discusses general trends in the development of DESs for CO 2 capture and evaluates the challenging aspects of DESs for CO 2 absorption.

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Applicability of Deep Eutectic Solvents in Oil and Gas Processing Fields for CO₂ Control

Cited by 8 publications

References 92 publications

RETRACTED: Gas Hydrate-Based CO2 Capture: A Journey from Batch to Continuous

RETRACTED: Gas Hydrate-Based CO2 Capture: A Journey from Batch to Continuous

Acidity Scale in a Choline Chloride- and Ethylene Glycol-Based Deep Eutectic Solvent and Its Implication on Carbon Dioxide Absorption

Advances in CO₂ Absorption by Deep Eutectic Solvents

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Applicability of Deep Eutectic Solvents in Oil and Gas Processing Fields for CO2 Control

Cited by 8 publications

References 92 publications

RETRACTED: Gas Hydrate-Based CO2 Capture: A Journey from Batch to Continuous

RETRACTED: Gas Hydrate-Based CO2 Capture: A Journey from Batch to Continuous

Acidity Scale in a Choline Chloride- and Ethylene Glycol-Based Deep Eutectic Solvent and Its Implication on Carbon Dioxide Absorption

Advances in CO2 Absorption by Deep Eutectic Solvents

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Product

Resources

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Applicability of Deep Eutectic Solvents in Oil and Gas Processing Fields for CO₂ Control

Advances in CO₂ Absorption by Deep Eutectic Solvents