Towards CO2 emissions reduction of shipping: Ca(OH)2 based carbon capture system for safeguarding the marine environment

Climate change poses a global challenge related to the reduction of pollutant atmospheric emissions and the maritime transportation sector is directly involved, due to its significant impact on the production of Greenhouse Gases and other substances. While established technologies have effectively t...

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Main Authors: Valentina Bortuzzo, Serena Bertagna, Luca Braidotti, Vittorio Bucci
Format: Article
Language:English
Published: Frontiers Media S.A. 2025-02-01
Series:Frontiers in Marine Science
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fmars.2025.1434342/full
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author Valentina Bortuzzo
Valentina Bortuzzo
Serena Bertagna
Luca Braidotti
Vittorio Bucci
author_facet Valentina Bortuzzo
Valentina Bortuzzo
Serena Bertagna
Luca Braidotti
Vittorio Bucci
author_sort Valentina Bortuzzo
collection DOAJ
description Climate change poses a global challenge related to the reduction of pollutant atmospheric emissions and the maritime transportation sector is directly involved, due to its significant impact on the production of Greenhouse Gases and other substances. While established technologies have effectively targeted emissions like Nitrogen Oxides (NOX) and Sulfur Oxides (SOX), the persistence of Carbon dioxide (CO2) emissions represents an ongoing and significant concern. Novel technologies targeting CO2 reduction have been lately studied and proposed for inland applications, and are now being developed for maritime applications. With this regard, the present study explores the potential of Carbon Capture Systems (CCS) to mitigate CO2 emissions produced by cargo ships. While the implementation of CCS faces challenges, including space limitations and logistical complexities, its possible integration onboard marks a significant step in the fight against climate change. The authors propose an innovative approach using a Calcium Hydroxide Ca(OH)2 based CCS, offering the dual benefit of CO2 reduction and the potential resolution of ocean acidification through Calcium carbonate (CaCO3), the final product resulting from the CO2 capture process. Additionally, the study examines the feasibility of the generated product for reuse in industry, promoting a circular economy and addressing environmental issues. This innovative solution underscores the urgent need for transformative measures to reduce maritime emissions, in line with efforts to safeguarding the marine environment and combat climate change.
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spelling doaj-art-2b93d92f9238483b8886ddead1f324a12025-02-07T08:14:07ZengFrontiers Media S.A.Frontiers in Marine Science2296-77452025-02-011210.3389/fmars.2025.14343421434342Towards CO2 emissions reduction of shipping: Ca(OH)2 based carbon capture system for safeguarding the marine environmentValentina Bortuzzo0Valentina Bortuzzo1Serena Bertagna2Luca Braidotti3Vittorio Bucci4Department of Engineering and Architecture, University of Trieste, Trieste, ItalyFratelli d’Amico Armatori Spa, Rome, ItalyDepartment of Engineering and Architecture, University of Trieste, Trieste, ItalyDepartment of Engineering and Architecture, University of Trieste, Trieste, ItalyDepartment of Engineering and Architecture, University of Trieste, Trieste, ItalyClimate change poses a global challenge related to the reduction of pollutant atmospheric emissions and the maritime transportation sector is directly involved, due to its significant impact on the production of Greenhouse Gases and other substances. While established technologies have effectively targeted emissions like Nitrogen Oxides (NOX) and Sulfur Oxides (SOX), the persistence of Carbon dioxide (CO2) emissions represents an ongoing and significant concern. Novel technologies targeting CO2 reduction have been lately studied and proposed for inland applications, and are now being developed for maritime applications. With this regard, the present study explores the potential of Carbon Capture Systems (CCS) to mitigate CO2 emissions produced by cargo ships. While the implementation of CCS faces challenges, including space limitations and logistical complexities, its possible integration onboard marks a significant step in the fight against climate change. The authors propose an innovative approach using a Calcium Hydroxide Ca(OH)2 based CCS, offering the dual benefit of CO2 reduction and the potential resolution of ocean acidification through Calcium carbonate (CaCO3), the final product resulting from the CO2 capture process. Additionally, the study examines the feasibility of the generated product for reuse in industry, promoting a circular economy and addressing environmental issues. This innovative solution underscores the urgent need for transformative measures to reduce maritime emissions, in line with efforts to safeguarding the marine environment and combat climate change.https://www.frontiersin.org/articles/10.3389/fmars.2025.1434342/fullmarine environment protectionatmospheric emissions reductionocean acidification mitigationcargo shipscarbon capture systemcalcium carbonate
spellingShingle Valentina Bortuzzo
Valentina Bortuzzo
Serena Bertagna
Luca Braidotti
Vittorio Bucci
Towards CO2 emissions reduction of shipping: Ca(OH)2 based carbon capture system for safeguarding the marine environment
Frontiers in Marine Science
marine environment protection
atmospheric emissions reduction
ocean acidification mitigation
cargo ships
carbon capture system
calcium carbonate
title Towards CO2 emissions reduction of shipping: Ca(OH)2 based carbon capture system for safeguarding the marine environment
title_full Towards CO2 emissions reduction of shipping: Ca(OH)2 based carbon capture system for safeguarding the marine environment
title_fullStr Towards CO2 emissions reduction of shipping: Ca(OH)2 based carbon capture system for safeguarding the marine environment
title_full_unstemmed Towards CO2 emissions reduction of shipping: Ca(OH)2 based carbon capture system for safeguarding the marine environment
title_short Towards CO2 emissions reduction of shipping: Ca(OH)2 based carbon capture system for safeguarding the marine environment
title_sort towards co2 emissions reduction of shipping ca oh 2 based carbon capture system for safeguarding the marine environment
topic marine environment protection
atmospheric emissions reduction
ocean acidification mitigation
cargo ships
carbon capture system
calcium carbonate
url https://www.frontiersin.org/articles/10.3389/fmars.2025.1434342/full
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