Process intensification concepts for CO2 methanation − A review

Fuel, Год журнала: 2025, Номер 386, С. 134269 - 134269

Опубликована: Янв. 8, 2025

Язык: Английский

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Applicability of Adsorbents in Direct Air Capture (DAC): Recent Progress and Future Perspectives

Industrial & Engineering Chemistry Research, Год журнала: 2025, Номер unknown

Опубликована: Фев. 17, 2025

Язык: Английский

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Direct Air Capture (DAC) for Achieving Net-Zero CO2 Emissions: Advances, Applications, and Challenges

Eng—Advances in Engineering, Год журнала: 2024, Номер 5(3), С. 1298 - 1336

Опубликована: Июль 4, 2024

Carbon dioxide (CO2), as the primary greenhouse gas, has significant impacts on global climate change, leading to severe and irreversible adverse consequences for ecosystems human environments. To address issue of excessive CO2 emissions, efforts in recent years have yielded progress development clean energy sources promotion carbon capture, utilization, storage (CCUS) technologies. Conventional capture techniques are limited addressing atmospheric excess effectively, they target only high-concentration emissions require implementation at specific emission points. Direct air (DAC) technology emerged a promising solution due its flexibility deployment, avoidance land competition, ability legacy emissions. Additionally, DAC offers opportunities producing synthetic fuels, thereby reducing reliance traditional fossil fuels aiding gas This study provides comprehensive review technology, encompassing principles, technological advancements, real-world applications, challenges, future research directions. By offering insights into current state potential this aims guide scaling up ultimately contributing achieving neutrality or even negative

Язык: Английский

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Transitioning the mining sector: A review of renewable energy integration and carbon footprint reduction strategies

Applied Energy, Год журнала: 2025, Номер 384, С. 125484 - 125484

Опубликована: Фев. 8, 2025

Язык: Английский

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Low-cost negative emissions by demand-side management for adsorption-based direct air carbon capture and storage

Carbon Neutrality, Год журнала: 2025, Номер 4(1)

Опубликована: Март 26, 2025

Abstract Limiting anthropogenic climate change to below 2 °C requires substantial and rapid reductions in greenhouse gas emissions. Additionally, carbon dioxide removal technologies are essential compensate for hard-to-abate emissions counteract overshooting the earth’s budget. One prospective technology is direct air capture storage (DACCS), but its energy intensity costs limit large-scale deployment. Flexible DACCS operation seems promising cost reduction yet remains underexplored. This study explores economic benefits of flexible adsorption-based DACCS, considering fluctuations both electricity prices from supply. To increase feasibility operation, typical steam-assisted temperature vacuum swing adsorption cycle enhanced by introducing two break phases variable steam mass flows during desorption. The comprehensively evaluated using a system model integrating detailed dynamic process with life-cycle data. allows each be adjusted optimally address time-varying A rolling horizon algorithm combined particle swarm optimization used optimize cycles mode over one week. case focuses on future German power grid amine-functionalized sorbents. Results indicate that can significantly reduce net up 20 % compared steady-state operation. These findings highlight potential support neutrality efforts enabling cost-effective through integration volatile renewable systems.

Язык: Английский

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Transforming Waste to Wealth: Harnessing Carbon Dioxide for Sustainable Solutions

Results in Surfaces and Interfaces, Год журнала: 2024, Номер unknown, С. 100321 - 100321

Опубликована: Окт. 1, 2024

Язык: Английский

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Phenolic Modified SiO₂ Aerogel as a Hybrid Thermal Insulation Systems

Langmuir, Год журнала: 2025, Номер unknown

Опубликована: Март 10, 2025

SiO2 aerogel is a good thermal insulation material, but its porous nanostructure makes it brittle and has poor mechanical property. with elastic property was prepared by combining methyltrimethoxysilane (MTMS) hexadecyltrimethoxysilane to form composite organic silane precursor. However, properties were not significantly improved. SiO2/phenolic-modified modifying thermosetting phenolic resin, which effectively improved the of aerogel. The results show that when molar ratio MTMS in range 0–0.05, continue improve increase introduction hexadecyltrimethoxysilane. maximum compressive strength can reach 0.03 MPa, strain tolerance 10–18%. When mass resin within 0–5.5, modified presents nanoscale gel network structure. 0.048 nearly 60% higher than before modification. allowable 14.7–17.5%. After 20 stress–strain tests, only decreases 4%, indicating stability. It simultaneously possessing low density (0.176 g/cm3), volume shrinkage rate, conductivity. conductivity an air atmosphere at 28 °C 0.057 W/(m·K). sol–gel reaction atmospheric drying process broad application prospects.

Язык: Английский

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Co-electrolysis SOEC and internal reforming SOFC for achieving a carbon-neutral society

RSC Sustainability, Год журнала: 2024, Номер 2(5), С. 1568 - 1579

Опубликована: Янв. 1, 2024

Co-electrolysis SOECs can convert steam + CO 2 to fuels and raw materials via syngas (H CO) using renewable energy. Internal reforming SOFCs generate power carbon-neutral methanol dimethyl ether, which are synthesized from the syngas.

Язык: Английский

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Life Cycle Economic and Environmental Assessment of Producing Synthetic Jet Fuel Using CO₂/Biomass Feedstocks

Environmental Science & Technology, Год журнала: 2024, Номер 58(21), С. 9158 - 9174

Опубликована: Май 16, 2024

The aviation industry is responsible for over 2% of global CO2 emissions. Synthetic jet fuels generated from biogenic feedstocks could help reduce life cycle greenhouse gas (GHG) emissions compared to petroleum-based fuels. This study assesses three processes producing synthetic fuel via the synthesis methanol using water and atmospheric or biomass. A assessment cost analysis are conducted determine GHG emissions, energy demand, land occupation, depletion, in Switzerland. results reveal that pathway directly hydrogenates exhibits largest reductions terms emission (almost 50%) conventional lowest production (7.86 EUR kgJF–1); however, its currently around 7 times higher than counterpart. Electrical was found be crucial capturing converting into hydrogen, with sourcing processing contributing 79% electric demand. Furthermore, significant variations were shown when electricity source varies, such as utilizing grid pertaining different countries distinct mixes. Thus, upscaling requires energy-efficient supply chains, sufficient feedstock, large amounts additional (very) low-carbon capacity, suitable climate policy, comprehensive environmental analyses.

Язык: Английский

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Development of zeolite adsorbents for CO2 separation in achieving carbon neutrality

npj Materials Sustainability, Год журнала: 2024, Номер 2(1)

Опубликована: Авг. 1, 2024

Abstract The escalating atmospheric CO 2 concentration has become a global concern due to its substantial influence on climate change, emphasizing the necessity of carbon capture achieve neutrality. Adsorption-based separation is promising approach for capture, highlighting importance developing solid porous materials as effective adsorbents. Among these materials, zeolites stand out adsorbents their extensively tunable adsorption/separation properties, superior structural stability, non-toxicity, and cost-effectiveness. This review provides comprehensive overview mechanisms, strategies, prospects zeolite development in separating from critical scenarios, encompassing flue gas (CO /N ), natural/bio/landfill gases /CH 4 air, respectively. outlines general mechanisms using zeolites, discusses specific strategies development, concludes with summary current findings an outlook future research.

Язык: Английский

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