About: Direct air capture

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Direct air capture (DAC) is a process of capturing carbon dioxide (CO2) directly from the ambient air (as opposed to capturing from point sources, such as a cement factory or biomass power plant) and generating a concentrated stream of CO2 for sequestration or utilization or production of carbon-neutral fuel and windgas. Carbon dioxide removal is achieved when ambient air makes contact with chemical media, typically an aqueous alkaline solvent or sorbents. These chemical media are subsequently stripped of CO2 through the application of energy (namely heat), resulting in a CO2 stream that can undergo dehydration and compression, while simultaneously regenerating the chemical media for reuse.

Attributes	Values
rdfs:label	Direct air capture (en) Direct air capture (de) Captura directa del aire (es) Capture du dioxyde de carbone dans l'air (fr) 直接空気回収技術 (ja)
rdfs:comment	La capture du dioxyde de carbone dans l'air ou capture directe du dioxyde de carbone, en anglais direct air capture (DAC) est l'extraction du dioxyde de carbone (CO2) présent dans l'air ambiant. Cette approche est à distinguer des techniques de captage sur des sources ponctuelles d'émissions, où les concentrations de CO2 sont bien plus élevées et le besoin en énergie plus faible. (fr) 直接空気回収技術（ちょくせつくうきかいしゅうぎじゅつ、Direct Air Capture ）は、二酸化炭素（ CO2 ）を大気中から直接回収する技術のことである。工場や発電所などの点源の排出源からCO2を分離回収するのではなく、大気中にすでに薄く拡散してしまったCO2を大気から直接取り除く技術である。回収したCO2は別途、利用したり、地下廃棄などする必要がある。この技術は1999年にKlausS.Lacknerによって初めて提案された。欧州や米国で商用化の動きがある。 (ja) Direct air capture (DAC) ist ein Verfahren zur Gewinnung von Kohlenstoffdioxid (CO2) direkt aus der Umgebungsluft. Grundprinzip ist, dass Umgebungsluft durch einen Abscheideapparat strömt, der einen Teil des CO2 entzieht. Ergebnis des Verfahrens ist – wie bei Carbon Capture and Utilization – reines CO2, das anschließend für verschiedene Zwecke verwendet werden kann. Wegen dieser Eigenschaft wurden solche Anlagen als „Artificial trees“ („künstliche Bäume“) bezeichnet. (de) Direct air capture (DAC) is a process of capturing carbon dioxide (CO2) directly from the ambient air (as opposed to capturing from point sources, such as a cement factory or biomass power plant) and generating a concentrated stream of CO2 for sequestration or utilization or production of carbon-neutral fuel and windgas. Carbon dioxide removal is achieved when ambient air makes contact with chemical media, typically an aqueous alkaline solvent or sorbents. These chemical media are subsequently stripped of CO2 through the application of energy (namely heat), resulting in a CO2 stream that can undergo dehydration and compression, while simultaneously regenerating the chemical media for reuse. (en) La captura directa del aire (DAC por sus siglas en inglés) es un proceso de toma de dióxido de carbono (CO2) directamente del aire ambiental (a diferencia de la extracción de fuentes puntuales, como una fábrica de cemento o una central eléctrica de biomasa) y generación de un flujo concentrado de CO2 para secuestro, o producción de combustible, u otra utilización. El aire ambiente contiene de manera natural una pequeña cantidad de CO2 (alrededor de un 0,04 %). Se puede captar ese CO2 poniendo al aire en contacto con medios químicos, generalmente un solvente acuoso alcalino o adsorbentes. Luego, mediante la aplicación de energía (es decir, calor) se hace que esos medios químicos desprendan el CO2, que puede someterse a deshidratación y compresión para su adecuado manejo, al mismo tiempo (es)
foaf:depiction
dcterms:subject	Climate engineering Emerging technologies Sustainability Direct air capture Carbon dioxide Carbon dioxide removal
Wikipage page ID	59311209 (xsd:integer)
Wikipage revision ID	1123819294 (xsd:integer)
Link from a Wikipage to another Wikipage	Carbfix Carbon-neutral fuel Carbon Engineering Carbon capture and storage dbr:Carbon_dioxide Carbon dioxide removal Carbon price Carbon sequestration Bedrock Potassium carbonate Potassium hydroxide Power station Santa Cruz, California Enhanced oil recovery Membrane Metal–organic framework Basalt Bill Gates Biomass Climate engineering Huntsville, Alabama Renewable energy Incineration Power-to-X Emerging technologies Chemisorption Point source pollution Climeworks Energy Impact Center N. Murray Edwards Corrosive substance Manhattan Climate change mitigation Fugitive emission Climate engineering Synthetic fuel British Columbia Ion-exchange resin Irrigation Alkaline Amine Sustainability Expo 2020 ExxonMobil London and Paris Conferences Carbon capture and utilization Carbon dioxide scrubber Carbon neutrality Carbonated water Carbonation Direct air capture Cement Center for Negative Carbon Emissions Flue gas Adjustment (psychology) Framework Programmes for Research and Technological Development Geothermal power station Hellisheiði Power Station Hinwil The Coca-Cola Company Sandra Day O'Connor College of Law Artificial photosynthesis Carbon dioxide Absorption (chemistry) Adsorption Carbon dioxide removal Lappeenranta Sodium carbonate Sodium hydroxide Sorbent Greenhouse Methane Catalyst Kone- ja Siltarakennus Y Combinator Klaus Lackner Solvent Nanotube membrane Renewable fuels Reykjavik Energy

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