Technical analysis of CO2 capture pathways and technologies

García, J.A. González; Villén-Guzmán, María; Rodríguez‐Maroto, José Miguel; Paz‐Garcia, Juan Manuel

doi:10.1016/j.jece.2022.108470

Cited by 54 publications

(22 citation statements)

References 139 publications

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“…Beyond alkanolamines, other sterically hindered amines, such as amino ethers, piperidine alcohols, and piperazine derivates, have been explored in the literature because of their significant chemical and technological advantages for industrial applications. 78 Some of these may prove to be suitable for achieving the required properties described above, and future simulations should explore their potential.…”

Section: Resultsmentioning

confidence: 99%

Reactivity of Monoethanolamine at the Air–Water Interface and Implications for CO₂ Capture

Martins-Costa,

Ruiz-López

2024

J. Phys. Chem. B

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The development of CO 2 -capture technologies is key to mitigating climate change due to anthropogenic greenhouse gas emissions. These cover a number of technologies designed to reduce the level of CO 2 emitted into the atmosphere or to eliminate CO 2 from ambient air. In this context, amine-based sorbents in aqueous solutions are broadly used in most advanced separation techniques currently implemented in industrial applications. It has been reported that the gas/liquid interface plays an important role in the early stages of the capture process, but how the interface influences the chemistry is still a matter of debate. With the help of first-principles molecular dynamics simulations, we show that monoethanolamine (MEA), a prototypical sorbent molecule, has a weak affinity for the air− water interface, where in addition it exhibits a lower nucleophilicity compared to bulk solution. The change in reactivity is due to the combination of structural and electronic factors, namely, the shift of the conformational equilibrium and the stabilization of the Natom lone pair. Based on these results, strategies for improving the efficiency of alkanolamine sorbents are proposed.

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Section: Resultsmentioning

confidence: 99%

Reactivity of Monoethanolamine at the Air–Water Interface and Implications for CO₂ Capture

Martins-Costa,

Ruiz-López

2024

J. Phys. Chem. B

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“…Apart from that, flue gas impurities, particularly water, need to be removed in order to avoid blockage issues caused by solid ice formation of water at low temperatures, which further increases the cost of separation. Therefore, it should be noted that this technology might only be feasible when the cold energy source, such as liquefied natural gas vaporization process, is available at near locations [ 117 ].…”

Section: Comparison Of Membrane and Other Technologies For Post-combu...mentioning

confidence: 99%

“…Membrane performance improved when there was more water in the flue gas stream. As for the inorganic membranes, they are still in the lab scale development, with TRL 3–4 [ 117 ], due to several problems related to the permeability of dense membranes, difficult processing, and high cost, as mentioned in the previous section. According to Jusoh et al [ 139 ], the fabrication cost of membrane modules for zeolite is 150 times higher than polymeric hollow fiber membrane modules, at 3000 USD and only 20 USD per square meter, which leads to its limitations in industrial applications.…”

Section: Comparison Of Membrane and Other Technologies For Post-combu...mentioning

confidence: 99%

Decarbonization of Power and Industrial Sectors: The Role of Membrane Processes

et al. 2023

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Carbon dioxide (CO2) is the single largest contributor to climate change due to its increased emissions since global industrialization began. Carbon Capture, Storage, and Utilization (CCSU) is regarded as a promising strategy to mitigate climate change, reducing the atmospheric concentration of CO2 from power and industrial activities. Post-combustion carbon capture (PCC) is necessary to implement CCSU into existing facilities without changing the combustion block. In this study, the recent research on various PCC technologies is discussed, along with the membrane technology for PCC, emphasizing the different types of membranes and their gas separation performances. Additionally, an overall comparison of membrane separation technology with respect to other PCC methods is implemented based on six different key parameters—CO2 purity and recovery, technological maturity, scalability, environmental concerns, and capital and operational expenditures. In general, membrane separation is found to be the most competitive technique in conventional absorption as long as the highly-performed membrane materials and the technology itself reach the full commercialization stage. Recent updates on the main characteristics of different flue gas streams and the Technology Readiness Levels (TRL) of each PCC technology are also provided with a brief discussion of their latest progresses.

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“…The emission of carbon dioxide is one of the problems receiving the most attention worldwide since it is one of the main causes of the greenhouse effect and the climate change, which threatens not only national economies but also the global environment 1 – 3 . Currently, three alternatives to address this problem are being examined: the first one is based on CO 2 emissions reduction by using less carbon-rich forms of fuel for energy production and increase of renewable energies use 4 , 5 ; the second one, concerns the development of new systems for CO 2 capture and storage 6 – 8 ; and the last one is related to the use of CO 2 as feedstock for the synthesis of useful chemicals or fuels 9 – 12 . In this work, the electrochemical (EC) CO 2 reduction reaction (CO 2 RR) aided by ionic liquid (IL)-based electrolytes is analyzed for the selective production of CO, which can be exploited along or in mixture with H 2 (as Syngas) to be used as fuel or as intermediate for industrial processes (e.g., Fischer Tropsch 13 , hydroformylation reaction 14 , methanol synthesis 15 ).…”

Section: Introductionmentioning

confidence: 99%

Understanding the role of imidazolium-based ionic liquids in the electrochemical CO2 reduction reaction

et al. 2023

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The development of efficient CO2 capture and utilization technologies driven by renewable energy sources is mandatory to reduce the impact of climate change. Herein, seven imidazolium-based ionic liquids (ILs) with different anions and cations were tested as catholytes for the CO2 electrocatalytic reduction to CO over Ag electrode. Relevant activity and stability, but different selectivities for CO2 reduction or the side H2 evolution were observed. Density functional theory results show that depending on the IL anions the CO2 is captured or converted. Acetate anions (being strong Lewis bases) enhance CO2 capture and H2 evolution, while fluorinated anions (being weaker Lewis bases) favour the CO2 electroreduction. Differently from the hydrolytically unstable 1-butyl-3-methylimidazolium tetrafluoroborate, 1-Butyl-3-Methylimidazolium Triflate was the most promising IL, showing the highest Faradaic efficiency to CO (>95%), and up to 8 h of stable operation at high current rates (−20 mA & −60 mA), which opens the way for a prospective process scale-up.

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Technical analysis of CO2 capture pathways and technologies

Cited by 54 publications

References 139 publications

Reactivity of Monoethanolamine at the Air–Water Interface and Implications for CO₂ Capture

Reactivity of Monoethanolamine at the Air–Water Interface and Implications for CO₂ Capture

Decarbonization of Power and Industrial Sectors: The Role of Membrane Processes

Understanding the role of imidazolium-based ionic liquids in the electrochemical CO2 reduction reaction

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Technical analysis of CO2 capture pathways and technologies

Cited by 54 publications

References 139 publications

Reactivity of Monoethanolamine at the Air–Water Interface and Implications for CO2 Capture

Reactivity of Monoethanolamine at the Air–Water Interface and Implications for CO2 Capture

Decarbonization of Power and Industrial Sectors: The Role of Membrane Processes

Understanding the role of imidazolium-based ionic liquids in the electrochemical CO2 reduction reaction

Contact Info

Product

Resources

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Reactivity of Monoethanolamine at the Air–Water Interface and Implications for CO₂ Capture

Reactivity of Monoethanolamine at the Air–Water Interface and Implications for CO₂ Capture