Developing Heterogeneous Catalysts for Reverse Water–Gas Shift Reaction in CO2 Valorization DOI Creative Commons

Gunjoo Kim,

Hyunjoo Lee

Korean Journal of Chemical Engineering, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 5, 2024

Abstract Carbon dioxide capture and utilization (CCU) in chemical processes is vital for achieving sustainable economically viable solutions the context of climate change mitigation. This review focuses on reverse water–gas shift (RWGS) reaction as a promising pathway converting CO₂ into carbon monoxide (CO), which can subsequently be used precursor synthesis various hydrocarbon compounds. The discussion centers catalyst design strategies aimed at enhancing low-temperature activity RWGS reaction, emphasizing roles supports active sites. Key approaches include increasing surface area, introducing defect sites, improving redox properties catalysts. Methods controlling adsorption strength gas reactants products to enhance CO selectivity are explored, with particular attention use ligands, promoters, doping, advanced structures such single-atom or core–shell configurations. Considerations regarding durability reducing environments development feasible catalysts also addressed. Well-designed offer significant advantages valorization, conversion hydrocarbons more readily achieved starting from CO.

Language: Английский

Calcite is an efficient and low-cost material to enhance benthic weathering in shelf sediments of the Baltic Sea DOI Creative Commons
Michael Fuhr, Andrew W. Dale, Klaus Wallmann

et al.

Communications Earth & Environment, Journal Year: 2025, Volume and Issue: 6(1)

Published: Feb. 12, 2025

Language: Английский

Citations

0
Review of Economics and Policies of Carbon Dioxide Removal DOI Creative Commons
So‐Young Oh, Jenna Greene, Matthias Honegger

et al.

Current Sustainable/Renewable Energy Reports, Journal Year: 2025, Volume and Issue: 12(1)

Published: March 7, 2025

Abstract Purpose of review Despite the increasing political attention and support, high costs many carbon dioxide removal (CDR) technologies remain a barrier to their large-scale deployment. We provide an overview economics for two key CDR options – BECCS DACCS proposed existing policies address “CDR gap” in achieving long-term temperature goals Paris Agreement. Summary Although we lack detailed cost breakdowns actual projects, our suggests that range is generally lower than DACCS. The parameter sustainability biomass feedstock, energy intensity. Recent Findings Cost estimates have increased due experiences from commercial operation, they are increasingly differentiated according feedstock.

Language: Английский

Citations

0
Fair carbon removal obligations under climate response uncertainty DOI Creative Commons
Gaurav Ganti, Setu Pelz,

Uta Klönne

et al.

Climate Policy, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 13

Published: March 20, 2025

Citations

0
A dataset of emissions and removals from scenarios and pathways within long-term national climate strategies – the LTS-SP dataset DOI Creative Commons
Harry Smith, Naomi E. Vaughan, Johanna Forster

et al.

Scientific Data, Journal Year: 2025, Volume and Issue: 12(1)

Published: March 23, 2025

Abstract Long-term low emission development strategies (LT-LEDS), supported by Article 4, paragraph 19, of the Paris Agreement, present scenarios and pathways aligned with national long-term climate targets. There is a growing interest in understanding whether collective effort plans align goals alongside feasibility, sectoral focus, balance emissions removals seen scenarios. Here we introduce strategy (LTS-SP) dataset, dataset presenting detailed within LT-LEDS or similar strategies. We detail level total greenhouse gas 2050, year which net zero achieved, from land-use, land-use change, forestry (LULUCF) engineered carbon dioxide removal (CDR) methods. provide comprehensive overview our procedure compare current published estimates. end summarising several caveats to detailing limitations LT-LEDS, their use policy research.

Language: Английский

Citations

0
Alkalinity Factory Can Achieve Positive Climate Benefits Within Decades DOI
Qian Yan, Liwen Zheng, Wen Zhuang

et al.

Journal of Cleaner Production, Journal Year: 2025, Volume and Issue: unknown, P. 145406 - 145406

Published: March 1, 2025

Language: Английский

Citations

0
Who cares about carbon dioxide removal? Assessing actors, policy positions, and participation modes within European and United Nations public consultation processes DOI Creative Commons
Lucilla Losi, Livia Fritz, Benjamin K. Sovacool

et al.

Climate Policy, Journal Year: 2025, Volume and Issue: unknown, P. 1 - 16

Published: April 4, 2025

Language: Английский

Citations

0
Energy requirements for securing wellbeing in Switzerland and the space for affluence and inequality DOI Creative Commons
Joel Millward-Hopkins, Vivien Fisch-Romito, Sascha Nick

et al.

Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)

Published: April 30, 2025

The idea that human needs should be secured for all people is largely uncontroversial, and recent research demonstrates decent living standards could all, globally, with far lower energy resource use than today. However, how the requirements of vary across populations poorly understood - particularly in high-income countries-and important questions regarding inequality remain unexplored. Here we show how, a fairer distribution energy, Switzerland dramatically reduce consumption while securing wellbeing all. We advance previous work on by decomposing an established net-zero scenario into required to support needs, related affluence or excess. estimate 2050 at 19.5 gigajoules per capita (18-26 varying subnational contexts), making it only ~13% Switzerland's 2019 footprint, ~23% projected scenario. This highlights theoretical potential affluent countries move towards more just, egalitarian global consumption, their own citizens.

Language: Английский

Citations

0
Carbon accounting for carbon dioxide removal DOI Creative Commons
Sarah L. Nordahl,

Rebecca J. Hanes,

Kimberley K. Mayfield

et al.

One Earth, Journal Year: 2024, Volume and Issue: 7(9), P. 1494 - 1500

Published: Sept. 1, 2024

Language: Английский

Citations

3
Residual carbon emissions in companies’ climate pledges: who has to reduce and who gets to remove? DOI Creative Commons
Rosalie Arendt

Climate Policy, Journal Year: 2024, Volume and Issue: unknown, P. 1 - 16

Published: June 11, 2024

Corporate carbon neutrality pledges have been criticized for their lack of integrity, especially when they are primarily based on the simple purchase offsets without making any significant emission reductions. Neutrality that consistent with goal ISO corporate net zero guidelines should be reduction all but so-called unavoidable or residual emissions. The emissions neutralized not through by actually removing equivalent amount from atmosphere. In this paper, I analyze whether climate 115 large companies, which cover eleven Global Industry Classification Standards' sectors, follow aforementioned definition. assessed criteria (i) type pledge made, (ii) definition employed and (iii) company commits to neutralize its exclusively removals. Secondly, assessment involves evaluating companies' commitment examining level provided determining if extends absolute scope 3 From companies had a target (69) only 22% aimed reduce compensate levels in year is specified 29 ranges between 0 80% (mean = 19.3%, median 10%, n 29). More than half exceed mean 10% claimed sectors classified as hard-to-abate such information technology communication companies.

Language: Английский

Citations

1
Transitioning Toward a Zero-Emission Electricity Sector in a Net-Zero Pathway for Africa Delivers Contrasting Energy, Economic and Sustainability Synergies Across the Region DOI
Humphrey Adun, Jeffrey Dankwa Ampah, Mustafa Dagbasi

et al.

Environmental Science & Technology, Journal Year: 2024, Volume and Issue: 58(35), P. 15522 - 15538

Published: Aug. 22, 2024

Although Africa contributes less than 5% to global greenhouse gas (GHG) emissions, its role in climate action is pivotal. To date, 53 African countries have submitted their Nationally Determined Contributions (NDCs), and four committed a net-zero target. However, many of Africa's NDCs are vaguely expressed without specific focus on explicit sectoral decarbonization targets. Furthermore, huge land-based carbon dioxide removal (CDR) potential remains unclear the context enabling (NZ) emissions within continent. This study achieves two objectives: Under NZ GHG emission trajectory Africa, we uncover implications targeted zero-emission electricity sector by 2030, energy landscape other sustainability factors. also features biological methods─bioenergy capture storage (BECCS) afforestation/reforestation (A/R)─in net zero actualization Africa. Our results reveal unified but disparate actualisation mid-century goal across continent, as all regions except North achieve neutrality. The industrial faces significant difficulties transitioning substantially positive with share total residual reaching 49-64% 2050. difficulty persists even sector, although it significantly reduced availability BECCS CDR option. pathway, buildings transport sectors due rapid electrification. A trade-off emerges pathway concerning land allocation for negative versus use activities. key result shows that achieving target leads cumulative loss $102 billion fossil fuel infrastructure mid-century, which doubles when achieved.

Language: Английский

Citations

1