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Showing 1 to 18 of 18 for “"Direct air capture"”.
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Climate Impact Analysis of Direct Air Capture Deployment
Direct air capture (DAC) is a negative emissions technology (NET) that can contribute to mitigating climate change impacts by extracting CO₂ from the atmosphere. Given its low technical maturity, uncertainties persist regarding DAC's cost, scalability, and life-cycle emissions. In this analysis I …
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A Synthesis and Optimization of Patented Direct Air Capture Technology
An engineering method termed direct air capture is used to take CO₂, the predominant global warming greenhouse gas, out of the atmosphere directly. Given that CO₂ levels in the air are only 0.04%, it presents a technical challenge. Ambient air has a concentration that is 2-4 orders of magnitude …
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Direct Air Capture as a Carbon Removal Solution: Analyzing Scale-Up, Cost Reduction, and Pathways for Acceleration
… to meet the Paris Agreement temperature goals. Direct air capture is a novel carbon removal technique that is gaining attention for its potential contribution to the portfolio of carbon removal solutions. As its primary barrier to deployment is high costs, there is a focus on understanding how …
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Atmospheric Carbon Capture: A Review on Current Technologies and Analysis of Energy Consumption for Various Direct Air Capture (DAC) Systems
<p>Carbon dioxide (CO<sub>2</sub>) capture is a crucial approach to reducing greenhouse gases in the atmosphere to directly combat climate change. Major components of the technology to desublimate CO<sub>2</sub> at cryogenic temperatures are mature and have the potential to be applied to build …
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Investigating the parameters of metal-organic framework crystal growth control for reverse osmosis membrane nanofillers and direct air capture of CO2
… considered for the commercial scale-up of CO2 direct air capture (DAC) solid sorbents, including UiO-66, MIL-101-Cr, and Mg-MOF-74, to preserve CO2 uptake capacities between lab and industrial scales.
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Feasibility of air capture
Capturing CO2 from air, referred to as Air Capture, is being proposed as a viable climate change mitigation technology. The two major benefits of air capture, reported in literature, are that it allows us to reduce the atmospheric carbon concentration, the only technology to do so, and that it can …
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A technical, economic, and environmental assessment of Power-to-X applications for heavy-duty transport
… electrolysis. The hydrogen can either be used directly or used as a feedstock, in conjunction with a source of CO2, for the production of synthetic hydrocarbons. Power-to-X systems have been suggested as a novel pathway to indirectly electrify modes of transport where direct electrification is …
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Investigation of Distribution and Transport of CO2 in Polyimine/MCM-41 Hybrid System: Modeling and Simulation Approach
This study focuses on advancing Direct Air Capture (DAC) technology for atmospheric carbon dioxide reduction by employing novel polyimine materials. From a computational perspective, The study investigates traditional poly(ethylenimine) (PEI) sorbents and novel poly(propylenimine) (PPI) and their …
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Comparative Assessment of the Societal Cost of PtL and LH₂ as Aviation Fuels
… it is preferable to liquefy hydrogen and use it directly as a fuel (LH₂) or to combine it with CO₂ captured from point sources or the atmosphere to create a synthetic hydrocarbon fuel (PtL). Much of this disagreement is a result of the wide range of uncertainty that exists in the variables …
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The Role for Electricity Transmission in Net-Zero Energy Systems: A Spatially Resolved Analysis of the Continental US
… negative emission technologies (NETs) including direct air capture and bioenergy with carbon capture and sequestration (BECCS) are being developed for integration into energy systems. Additionally, variable renewable energy (VRE) resources, which are expected to play a major role in …
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Social Marginal Abatement Cost of Negative Emissions : Incorporating Externalities into the Private Costs of Carbon Dioxide Removal
… the most feasible NETPs as Bioenergy with Carbon Capture and Storage (BECCS) with combustion technology, Direct Air Capture and Storage (DACCS) with High-Temperature Solid-Sorbent technology, and Enhanced Weathering. The study found that each impact category had a considerably different impact on …
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Multi-vector Energy Systems Analysis for Heavy-duty Transportation Deep Decarbonization Using H₂ and Synthetic Fuels
… While H₂ HDV adoption reduces the need for direct air capture (DAC), synthetic fuel adoption results in a greater need for DAC and also leads to system cost increases compared to scenarios without their adoption. The study highlights the trade-offs associated with different transportation …
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Assessing an offshore carbon storage opportunity at Chandeleur Sound, Louisiana
Carbon Capture and Storage (CCS) is considered a crucial technology for climate change mitigation. Its primary objective is to reduce CO₂ emissions caused by human activities by capturing gas from large point sources or from direct air capture and injecting it into deep geologic formations. This …
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Assessing an offshore carbon storage opportunity at Chandeleur Sound, Louisiana
Carbon Capture and Storage (CCS) is considered a crucial technology for climate change mitigation. Its primary objective is to reduce CO₂ emissions caused by human activities by capturing gas from large point sources or from direct air capture and injecting it into deep geologic formations. This …
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Large-scale production of oxymethylene dimethyl ethers
… boundary starting from H2O electrolysis and CO2 capture. The overall energy efciency for all considered OME3-5 production processes is < 40 % even after heat integration. However, the overall energy efciency can be signifcantly improved if high temperature heat pumps (HTHP) are used to lift the …
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Liquid-Amine Infused Surfaces for Carbon Capture
… point sources (e.g. exhaust streams) and (ii) directly from air (i.e. direct air capture (DAC)) are the key towards reversing the elevated levels of atmospheric CO<sub>2</sub>.</p> <p>Here, we study a novel technology (solid with infused reactive liquid (SWIRL)) which integrates liquid infused …
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Studies on the Conversion of Atmospheric Carbon Dioxide to Methanol
… support for copper catalysts, also suggesting a direction for future work on plasma-driven methanol synthesis. Finally, the work emphasises the need for dynamic production of chemicals to interface successively with renewable power, taking the example of a wind farm erected directly as part of a …
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Evaluating the Effect of Composition, Structure and Functionality on Atmospheric CO2 Adsorption in Porous Solid Sorbents
… through negative emotion technologies including direct air capture (DAC). The low concentration of CO2 in the atmosphere makes this separation more costly and energy intensive than other forms of carbon capture. For this reason, porous solid adsorbents have been proposed for DAC due to their low …