Considering technology characteristics to project future costs of direct air capture

Joule, Год журнала: 2024, Номер 8(4), С. 979 - 999

Опубликована: Март 1, 2024

Several low-carbon technologies, such as solar photovoltaics or batteries, have experienced massive cost reductions in the recent past. However, non-mature technologies will also be required to meet Paris climate targets. The of novel like direct air capture (DAC) remains highly uncertain. Here, we introduce a new method project future costs by assigning empirically grounded experience rates technology components based on their similarity mature terms design complexity and customization needs. After an ex-post validation this method, apply it three DAC combined with CO2 transport storage (DACCS) provide probabilistic estimates net removed. At 1 Gt-CO2/year cumulative capacity, DACCS at $341/tCO2 ($226–$544 90% confidence) for liquid solvent DACCS, $374/tCO2 ($281–$579) solid sorbent $371/tCO2 ($230–$835) CaO ambient weathering DACCS.

Язык: Английский

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Architecting Metal–Organic Frameworks at Molecular Level toward Direct Air Capture

Journal of the American Chemical Society, Год журнала: 2025, Номер unknown

Опубликована: Фев. 7, 2025

Escalating carbon dioxide (CO2) emissions have intensified the greenhouse effect, posing a significant long-term threat to environmental sustainability. Direct air capture (DAC) has emerged as promising approach achieving net-zero future, which offers several practical advantages, such independence from specific CO2 emission sources, economic feasibility, flexible deployment, and minimal risk of leakage. The design optimization DAC sorbents are crucial for accelerating industrial adoption. Metal-organic frameworks (MOFs), with high structural order tunable pore sizes, present an ideal solution strong guest-host interactions under trace conditions. This perspective highlights recent advancements in using MOFs DAC, examines molecular-level effects water vapor on capture, reviews data-driven computational screening methods develop molecularly programmable MOF platform identifying optimal sorbents, discusses scale-up cost DAC.

Язык: Английский

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Sustainable aviation fuel pathways: Emissions, costs and uncertainty

Resources Conservation and Recycling, Год журнала: 2025, Номер 215, С. 108124 - 108124

Опубликована: Янв. 14, 2025

Язык: Английский

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Diversity of biomass usage pathways to achieve emissions targets in the European energy system

Nature Energy, Год журнала: 2025, Номер unknown

Опубликована: Янв. 23, 2025

Язык: Английский

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Geographically-Resolved Techno-Economic and Life Cycle Assessment Comparing Microalgae-Based Renewable Diesel and Sustainable Aviation Fuel in the United States

Environmental Science & Technology, Год журнала: 2025, Номер unknown

Опубликована: Фев. 11, 2025

This study integrates high-resolution thermal and biological modeling with techno-economic analysis life cycle assessment to evaluate compare two different microalgae biorefinery configurations targeting renewable diesel (RD) sustainable aviation fuel (SAF) production in the United States at county level. A dynamic engineering process model captures mass energy balances for biomass growth, storage, dewatering, conversion hourly resolution. The modeled enable large-scale biofuel by supporting facilities remote locations cultivation on marginal lands. pathways under examination share identical harvesting assumptions but differ their processes. first pathway evaluates hydrothermal liquefaction (HTL) produce RD, while second explores hydroprocessed esters fatty acids (HEFA) SAF. Results indicate that minimum selling price (MFSP) HTL could decrease from 3.72-$7.26 1.48-$4.10 per liter of gasoline equivalent (LGE-1), HEFA 5.79-$10.93 1.73-$4.48 LGE-1 future scenarios increased lipid content reduced CO2 delivery costs. Optimization analyses reveal achieve a MFSP $0.75 70% greenhouse gas emissions reductions compared petroleum fuels both pathways. also examines water footprint, land-use change emissions, additional environmental impacts. Discussion focuses outlining strategic research development investments reduce costs burdens biofuels.

Язык: Английский

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Water management and heat integration in direct air capture systems

Nature Chemical Engineering, Год журнала: 2024, Номер 1(3), С. 208 - 215

Опубликована: Март 5, 2024

Water plays a pivotal role in direct air capture technologies, impacting materials, regeneration processes and product streams. CO2 removal methods, including absorption, adsorption electrochemical techniques, encounter challenges associated with water, thus reducing their efficacy. fluxes into out of aqueous solvents affect the concentration overall performance. Solid adsorbents co-adsorb water greater quantities than will require effective strategies to address substantial energy penalty desorption each cycle. Water-management are imperative for economic viability minimizing environmental impact, but high intensity necessitates heat recovery techniques. Feed dehydration can be combined strategic integration process streams standard techniques front-end management. For back-end approaches, mechanical vapor compression is viable solution coupling management, we highlight potential benefits three implementation methods. Further research variable climate conditions quality impacts essential success technologies. management crucial enhancing impact (DAC) This Perspective discusses several DAC processes.

Язык: Английский

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Tuning sorbent properties to reduce the cost of direct air capture

Energy & Environmental Science, Год журнала: 2024, Номер 17(13), С. 4544 - 4559

Опубликована: Янв. 1, 2024

A direct air capture (DAC) economic model that accounts for sorbent degradation is developed. Experimentally-measured parameters are then integrated to identify and process features minimize both the DAC carbon footprint cost.

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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Co-assessment of costs and environmental impacts for off-grid direct air carbon capture and storage systems

Communications Engineering, Год журнала: 2024, Номер 3(1)

Опубликована: Янв. 16, 2024

Abstract Large-scale deployment of direct air carbon capture and storage (DACS) is required to offset CO 2 emissions. To guide decision-making, a combined assessment costs environmental impacts for DACS systems necessary. Here we present cost model life cycle several combinations off-grid DACSs, powered by photovoltaic (PV) energy heat pumps with battery storages mitigate intermittency the PV source. Utilization factors DACSs are estimated different locations, power capacities. We find that optimal layout in Nevada (USA) nominal removal capacity 100,000tCO per year consists 100 MW 300MWh battery. Costs $755 $877 gross net 1tCO . The difference explained efficiency (CRE) 88%. Of 16 evaluated impact categories mineral resource use most problematic. conceive dashboard which allows track how changes technical parameters, such as consumption or adsorbent degradation, costs, CRE impacts. In an optimized scenario including tax credits, net-removal will be $216 at 93%.

Язык: Английский

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Assessment of Potential and Techno-Economic Performance of Solid Sorbent Direct Air Capture with CO₂ Storage in Europe

Environmental Science & Technology, Год журнала: 2024, Номер 58(24), С. 10567 - 10581

Опубликована: Июнь 3, 2024

Direct air capture with CO2 storage (DACCS) is among the carbon dioxide removal (CDR) options, largest gap between current deployment and needed upscaling. Here, we present a geospatial analysis of techno-economic performance large-scale DACCS in Europe using two indicators: CDR costs potential. Different low-temperature heat configurations are considered, i.e., coupled to national power grid, waste powered by curtailed electricity. Our findings reveal that potential systems mainly driven (i) availability energy sources, (ii) location-specific climate conditions, (iii) price GHG intensity electricity, (iv) transport distance nearest location. The results further highlight following key findings: limited heat, only Sweden potentially compensating nearly 10% emissions through CDR, need for considering comprehensive assessment DACCS. Finally, our reveals substantial differences regions due useful information elements consistent insights will contribute feasibility studies toward effective implementation.

Язык: Английский

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