Assessing absorption-based CO2 capture: Research progress and techno-economic assessment overview

Carbon Capture Science & Technology, Journal Year: 2023, Volume and Issue: 8, P. 100125 - 100125

Published: June 16, 2023

Rapid industrial developments and rising population are mounting concerns, leading to increased greenhouse gas (GHG) emissions resultant climate change. Therefore, curb such drastic trends, it is necessary adopt develop a sustainable environment. Among the most effective ways lower GHG carbon capture. Absorption one of mature methods reducing CO2 due its high processing capacity, excellent adaptability, reliability. This study aims evaluate recent advancements in various capture techniques, with an emphasis on absorption technology. The techno-economic analyses absorption-based processes were meticulously discussed. These include studies solvent screening as well analysis methods. Economic estimators payback period, rate return net present value research progress compared other separation methods, elucidated. Advances applications solvents including aqueous, phase change deep eutectic presented. Finally, key recommendations provided tackle challenges for efficient utilization technique.

Language: Английский

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Investigation of the improvement of the CO2 capture performance of aqueous amine sorbents by switching from dual-amine to trio-amine systems

Separation and Purification Technology, Journal Year: 2023, Volume and Issue: 316, P. 123810 - 123810

Published: April 8, 2023

Mixing amines with different properties is considered a smart strategy for developing efficient aqueous solutions reversible CO2 capture. Specifically, dual-amine blends containing the tertiary amine 2-dimethylamino-2-methyl-1-propanol (2DMA2M1P) have proven to be particularly advantageous due significantly lower regeneration costs compared conventional sorbents. With aim of formulating high-efficiency sorbents, in this work we evaluated improvement capture performance such by adding further form trio-amine systems: use three characteristics could emphasize advantages obtainable during both absorption and desorption. We formulated new prepared mixing 2DMA2M1P reaction rate promoter ethanolamine (MEA) capacity 2-amino-2-methyl-1-propanol (AMP) molar ratios. For each blend, solubility at equilibrium, from gaseous mixture, T = 373 K energy requirement desorption were determined experimentally. In addition, better understand mechanism, 13C NMR spectroscopy was employed evaluate speciation blend absorption. Their that benchmark MEA two 2DMA2M1P-based mixtures, obtained same procedure. As finding, all superior equilibrium 5 M. Noteworthy, comparison similar systems highlighted role suitable third order obtain enhance efficiencies. Among systems, MEA-2DMA2M1P-AMP (1:2:2) potentially most replace processes after careful cost-benefit analysis on larger scale systems.

Language: Английский

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Achieving China's ‘double carbon goals’, an analysis of the potential and cost of carbon capture in the resource-based area: Northwestern China

Energy, Journal Year: 2024, Volume and Issue: 292, P. 130441 - 130441

Published: Jan. 25, 2024

Language: Английский

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A review of catalytically enhanced CO2-rich amine solutions regeneration

Journal of environmental chemical engineering, Journal Year: 2023, Volume and Issue: 11(4), P. 110188 - 110188

Published: May 23, 2023

Language: Английский

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Energy-Saving Effect of Low-Cost and Environmentally Friendly Sepiolite as an Efficient Catalyst Carrier for CO₂ Capture

ACS Sustainable Chemistry & Engineering, Journal Year: 2023, Volume and Issue: 11(11), P. 4353 - 4363

Published: March 8, 2023

Recently, the development of efficient solid acid catalysts to promote CO2 desorption rate while reducing energy consumption has attracted much attention. In this work, low-cost environmentally friendly sepiolite (SEP) clay was evaluated as a support metal oxide (Fe2O3, CuO) catalysts. By comparing their catalytic performances for from CO2-rich monoethanolamine (MEA) solution at 100 °C, obtained results showed that tested can accelerate release and reduce heat in comparison with non-catalytic MEA solution. The relative duty found decreased following order: blank (100%) > SEP (66.4%) CuO-SEP (58.8%) Fe2O3-SEP (54.0%). Recycling tests study stability demonstrated maintain its efficiency after six recycling runs. Characterization studies revealed high mesoporous specific surface area ratio Brønsted Lewis sites are beneficial enhancing activity addition, possible mechanism proposed. As result, work proved potential be competitive catalyst carrier capture.

Language: Английский

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One-step synthesis of efficient manganese-based oxide catalyst for ultra-rapid CO2 absorption in MDEA solutions

Chemical Engineering Journal, Journal Year: 2023, Volume and Issue: 465, P. 142878 - 142878

Published: April 7, 2023

Language: Английский

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Fly ash as a cost-effective catalyst to promote sorbent regeneration for energy efficient CO2 capture

Energy, Journal Year: 2024, Volume and Issue: 294, P. 130890 - 130890

Published: March 3, 2024

The use of catalysts to promote sorbent regeneration is currently considered an effective method reduce the energy required in CO2 capture processes. Aiming at identifying stable and cost-effective with high desorption efficiency, here we investigated performance fly ash (FA) during thermal aqueous amine solutions. rate, cyclic capacity heat duty a CO2-saturated ethanolamine addition FA were experimentally measured, results compared those obtained for same solution without eight different catalysts. Experimental showed that significantly improved non-catalyzed system, was most efficient these. Further studies temperatures provided comparable system least 5 °C higher always reduced temperature, especially beginning process. Finally, recycling tests demonstrated had good stability its catalytic efficiency remained even after 20 cycles. In conclusion, could be catalyst energy-efficient capture, deserving further investigation application industrial-scale plants.

Language: Английский

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Sustainability and Photocatalytic Performance of MOFs: Synthesis Strategies and Structural Insights

Journal of Cleaner Production, Journal Year: 2024, Volume and Issue: 470, P. 143263 - 143263

Published: July 27, 2024

Language: Английский

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Cerium-MOF-Derived Composite Hierarchical Catalyst Enables Energy-Efficient and Green Amine Regeneration for CO₂ Capture

Environmental Science & Technology, Journal Year: 2024, Volume and Issue: 58(23), P. 10052 - 10059

Published: May 31, 2024

The excessive energy consumed restricts the application of traditional postcombustion CO2 capture technology and limits achievement carbon-neutrality goals. Catalytic-rich amine regeneration has potential to accelerate proton transfer increase efficiency in separation process. Herein, we reported a Ce-metal–organic framework (MOF)-derived composite catalyst named HZ-Ni@UiO-66 with hierarchical structure, which can desorbed amount by 57.7% decrease relative heat duty 36.5% comparison noncatalytic monoethanolamine (MEA) CeO2 coating from UiO-66 precursor on HZ-Ni carrier shows excellent stability long lifespan. also universal catalytic effect typical blended systems large cyclic capacity. effectively decreases barrier desorption reaction reduce time required reach thermodynamics, consequently saving consumption generated water evaporation. This research provides new avenue for advancing less at low temperatures.

Language: Английский

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Reducing energy requirements and enhancing MEA-CO2 desorption rates in amine solutions with KIT-6 nanostructures

Separation and Purification Technology, Journal Year: 2024, Volume and Issue: 346, P. 127536 - 127536

Published: April 16, 2024

Language: Английский

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