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Showing 1 to 10 of 10 for “"Amine scrubbing"”.
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Understanding and Improving Electrochemical CO2 Capture by Supercapacitive Swing Adsorption
… atmosphere. Current CO2 capture technology uses amines that react with CO2 and form carbamates. This is an efficient capture process but has high energy costs to release the CO2 and the amines used are both toxic and corrosive. Electrochemical carbon capture has been proposed as a safer and more …
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Modeling and design for electrochemical carbon dioxide capture systems
… technology called Electrochemically-Mediated Amine Recovery (EMAR). EMAR modifies incumbent thermal amine scrubbing, by performing an electrochemical desorption which manipulates the concentration of a cupric competitive complexing agent. Oxidizing copper results in a cupric-amine complex at …
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Investigation of Ex-Situ Carbon Mineralization Fundamentals andScalability in Wet Supercritical Carbon Dioxide
… required per ton of carbon dioxide captured (via amine scrubbing) and sequestered as carbonates, depending on the energy source, which is comparable to recent carbon mineralization strategies such as those proposed by Carbfix. Furthermore, the silica and carbonate product can be utilized for …
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Modeling of carbon dioxide absorption/stripping by aqueous methyldiethanolamine/piperazine
… methodology, and incorporated data for all amine, amine/water, and amine/water/CO₂ systems. The sensitivity of CO₂ absorption rate was determined in a wetted wall column simulation in Aspen Plus®, and the results were used in Microsoft Excel to determine the optimum reaction rates, …
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Leveraging System-Level Analyses and Techno-Economic Modeling to Inform the Viability of Electrochemically-Mediated CO₂ Separation
… that exploit the natural affinity of alkanolamines for CO₂ at ambient conditions. Alternatively, electrochemical capture systems may enable CO₂ removal from flue gas streams at higher energetic efficiencies while also offering more modular and scalable designs. However, direct comparisons …
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Integrating carbon capture and storage with energy production from saline aquifers
… aquifers is higher than the temperature of amine stripper column. Calculations for the strategy of injecting CO₂-saturated brine show that the amount of extracted thermal energy from geopressured-geothermal aquifers exceeds the amount of heat required for capturing CO₂ by amine scrubbing. In …
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Modeling advanced flash stripper for carbon dioxide capture using aqueous amines
… which is generally higher than existing amines with 60–80 kJ/mol. The energy performance of AFS is not sensitive to the heat of absorption. A techno-economic analysis with process optimization that minimizes the annualized regeneration cost was performed to demonstrate the profitability …
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Liquid-Amine Infused Surfaces for Carbon Capture
… surfaces are designed to be readily wet by pure amine liquids to form wetting infused layers, retained by capillary forces, of order tens of microns in thickness. These stationary wetting layers capture CO<sub>2</sub> via a reaction to form carbamate. The large interfacial areas per unit volume …
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Design, Synthesis and Evaluation of Liquid-like Nanoparticle Organic Hybrid Materials for Carbon Dioxide Capture
… commonly employed approach to capture CO2 is amine scrubbing in which amine-based solvents react with gaseous CO2 to form carbamate. Although the amine-based solvents such as monoethanolamine (MEA) exhibit high CO2 capture capacity, their high volatility results in corrosive fumes and …
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Electrospun nanofibrous metal oxides as regenerable adsorbents for desulfurization of biomass-derived syngas
… different processes used for H2S removal, wet amine scrubbing has been the most popular. However, such wet processes require comparatively low operating temperatures (35 - 55⁰C). The cleaned syngas has to be subsequently reheated for the downstream processes (300 - 800⁰C). Such consecutive …