A Closed-Loop System for Carbon-Neutral Fuel Production: Integrating Seawater Electrolysis and Direct Air Capture
This study explores a closed-loop system that integrates seawater electrolysis with direct air capture (DAC) for the sustainable production of carbon-neutral fuels. By harnessing renewable energy, hydrogen is generated from seawater, while carbon dioxide is extracted directly from the atmosphere. Th...
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| Format: | Article |
| Language: | English |
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EDP Sciences
2025-01-01
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| Series: | MATEC Web of Conferences |
| Online Access: | https://www.matec-conferences.org/articles/matecconf/pdf/2025/04/matecconf_menec2025_01038.pdf |
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| author | Labarre Aurelie |
| author_facet | Labarre Aurelie |
| author_sort | Labarre Aurelie |
| collection | DOAJ |
| description | This study explores a closed-loop system that integrates seawater electrolysis with direct air capture (DAC) for the sustainable production of carbon-neutral fuels. By harnessing renewable energy, hydrogen is generated from seawater, while carbon dioxide is extracted directly from the atmosphere. These feedstocks are subsequently utilized in catalytic processes, such as methanol synthesis, the Sabatier reaction, and Fischer– Tropsch synthesis, to produce a range of valuable hydrocarbon fuels. This integrated approach presents a promising strategy to decarbonize hard-to- abate sectors, particularly transportation and heavy industry, which are major contributors to global greenhouse gas emissions. This paper evaluates the technical feasibility of key system components, including the electrolyzer and DAC unit, and examines the impact of catalyst selection, reaction conditions, and system integration on overall efficiency and fuel yield. Special attention is given to the challenges of catalyst degradation in saline environments, energy input optimization, and scalability. Economic and environmental assessments are provided to determine the viability of implementing such systems at scale. Overall, this study offers a comprehensive analysis of the potential role of seawater electrolysis–DAC integration in supporting global decarbonization targets and facilitating a transition to circular, carbon-neutral fuel cycles. |
| format | Article |
| id | doaj-art-ce315ed110ce413ca9ca19412adf002c |
| institution | DOAJ |
| issn | 2261-236X |
| language | English |
| publishDate | 2025-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | MATEC Web of Conferences |
| spelling | doaj-art-ce315ed110ce413ca9ca19412adf002c2025-08-20T02:46:25ZengEDP SciencesMATEC Web of Conferences2261-236X2025-01-014100103810.1051/matecconf/202541001038matecconf_menec2025_01038A Closed-Loop System for Carbon-Neutral Fuel Production: Integrating Seawater Electrolysis and Direct Air CaptureLabarre Aurelie0Dulwich College BeijingThis study explores a closed-loop system that integrates seawater electrolysis with direct air capture (DAC) for the sustainable production of carbon-neutral fuels. By harnessing renewable energy, hydrogen is generated from seawater, while carbon dioxide is extracted directly from the atmosphere. These feedstocks are subsequently utilized in catalytic processes, such as methanol synthesis, the Sabatier reaction, and Fischer– Tropsch synthesis, to produce a range of valuable hydrocarbon fuels. This integrated approach presents a promising strategy to decarbonize hard-to- abate sectors, particularly transportation and heavy industry, which are major contributors to global greenhouse gas emissions. This paper evaluates the technical feasibility of key system components, including the electrolyzer and DAC unit, and examines the impact of catalyst selection, reaction conditions, and system integration on overall efficiency and fuel yield. Special attention is given to the challenges of catalyst degradation in saline environments, energy input optimization, and scalability. Economic and environmental assessments are provided to determine the viability of implementing such systems at scale. Overall, this study offers a comprehensive analysis of the potential role of seawater electrolysis–DAC integration in supporting global decarbonization targets and facilitating a transition to circular, carbon-neutral fuel cycles.https://www.matec-conferences.org/articles/matecconf/pdf/2025/04/matecconf_menec2025_01038.pdf |
| spellingShingle | Labarre Aurelie A Closed-Loop System for Carbon-Neutral Fuel Production: Integrating Seawater Electrolysis and Direct Air Capture MATEC Web of Conferences |
| title | A Closed-Loop System for Carbon-Neutral Fuel Production: Integrating Seawater Electrolysis and Direct Air Capture |
| title_full | A Closed-Loop System for Carbon-Neutral Fuel Production: Integrating Seawater Electrolysis and Direct Air Capture |
| title_fullStr | A Closed-Loop System for Carbon-Neutral Fuel Production: Integrating Seawater Electrolysis and Direct Air Capture |
| title_full_unstemmed | A Closed-Loop System for Carbon-Neutral Fuel Production: Integrating Seawater Electrolysis and Direct Air Capture |
| title_short | A Closed-Loop System for Carbon-Neutral Fuel Production: Integrating Seawater Electrolysis and Direct Air Capture |
| title_sort | closed loop system for carbon neutral fuel production integrating seawater electrolysis and direct air capture |
| url | https://www.matec-conferences.org/articles/matecconf/pdf/2025/04/matecconf_menec2025_01038.pdf |
| work_keys_str_mv | AT labarreaurelie aclosedloopsystemforcarbonneutralfuelproductionintegratingseawaterelectrolysisanddirectaircapture AT labarreaurelie closedloopsystemforcarbonneutralfuelproductionintegratingseawaterelectrolysisanddirectaircapture |