Solar-Powered Direct Air Capture: Techno-Economic and Environmental Assessment

Environmental Science & Technology, Год журнала: 2024, Номер 58(5), С. 2282 - 2292

Опубликована: Янв. 25, 2024

Direct air capture (DAC) of CO2 has gained attention as a sustainable carbon source. One the most promising technologies currently available is liquid solvent DAC (L-DAC), but significant fraction fossil in output stream hinders its utilization carbon-neutral fuels and chemicals. Fossil generated captured during combustion to calcine carbonates, which difficult decarbonize due high temperatures required. Solar thermal energy can provide green high-temperature heat, it flourishes arid regions where environmental conditions are typically unfavorable for L-DAC. This study proposes solar-powered L-DAC approach develops model assess influence location plant capacity on costs. The performed life cycle assessment enables comparison based net removal, demonstrating that not only more environmentally friendly also cost-effective than conventional

Язык: Английский

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Thermodynamic analysis of adsorption carbon capture from limiting cycle to heat pump assisted cycle

Energy, Год журнала: 2024, Номер 291, С. 130299 - 130299

Опубликована: Янв. 11, 2024

Язык: Английский

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Atmospheric alchemy: The energy and cost dynamics of direct air carbon capture

MRS Energy & Sustainability, Год журнала: 2024, Номер unknown

Опубликована: Июль 9, 2024

Abstract Amid a relentless global climate crisis, the 28th Conference of Parties (COP28) spotlighted Direct Air Carbon Capture (DACC) as key intervention to mitigate escalating temperatures and CO 2 levels. The Intergovernmental Panel on Climate Change (IPCC) underscores urgency this challenge, stipulating need for robust removal strategies. It sets daunting yet crucial target: capture 85 million metric tons by 2030, 980 2050, achieve net-zero emissions (IEA, Executive Summary—Direct 2022—Analysis. https://www.iea.org/reports/direct-air-capture-2022/executive-summary ). Despite imperative, existing 19 operational DAC facilities globally face significant barriers, including prohibitive costs stringent regulations, which impede their large-scale application (Ozkan et al.). Current status pillars direct air technologies. Iscience (2022). While COP28 stopped short delineating definitive roadmap DAC, article addresses vital aspect technology: processes’ substantial energy heat requirements, are integral efficiency economic viability. This illuminates pathways future technological evolution cost optimization through an in-depth analysis these thereby charting course toward more effective scalable infrastructure. Graphical abstract Highlights With atmospheric exceeding 420 ppm, clock is ticking crisis. offers revolutionary approach directly remove excess , acting critical tool in our fight sustainable future. However, current systems challenge high consumption. Continuous fan operation intake sorbent material regeneration, consuming nearly 2000–3000 kWh per ton captured, major contributors. Optimizing processes crucial. Advancements efficiency, system design that minimizes parasitic losses, seamless integration with renewable sources slashing DAC’s demands. By reducing its carbon footprint enhancing viability, advancements can unlock full potential become game-changer combating change securing cleaner planet. Discussion Given requirements DACC processes, what innovations necessary make efficient economically viable? Considering demands most promising avenues enhance technology's scalability cost-effectiveness? How limitations be overcome scale up effectively? What role could play meeting facilities, how might impact overall process? do technologies influence location infrastructure needs, particularly relation sinks? or currently being explored optimize challenges they terms implementation scaling? achieving targets, policy regulatory frameworks designed support development deployment energy-efficient solutions?

Язык: Английский

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Porous sorbents for direct capture of carbon dioxide from ambient air

Chinese Chemical Letters, Год журнала: 2024, Номер unknown, С. 109676 - 109676

Опубликована: Фев. 1, 2024

Язык: Английский

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Increased CO₂/N₂ selectivity by stepwise fluorination in isoreticular ultramicroporous metal–organic frameworks

Chemical Science, Год журнала: 2024, Номер 15(25), С. 9641 - 9648

Опубликована: Янв. 1, 2024

Exploration of porous adsorbents with high CO

Язык: Английский

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