The Role of Biodiesel in Marine Decarbonization: Technological Innovations and Ocean Engineering Challenges

Results in Engineering, Journal Year: 2025, Volume and Issue: unknown, P. 103974 - 103974

Published: Jan. 1, 2025

Language: Английский

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

Frontiers in Marine Science, Journal Year: 2025, Volume and Issue: 12

Published: Feb. 7, 2025

Climate change poses a global challenge related to the reduction of pollutant atmospheric emissions and maritime transportation sector is directly involved, due its significant impact on production Greenhouse Gases other substances. While established technologies have effectively targeted like Nitrogen Oxides (NO X ) Sulfur (SO ), persistence Carbon dioxide (CO 2 represents an ongoing concern. Novel targeting CO been lately studied proposed for inland applications, are now being developed applications. With this regard, present study explores potential Capture Systems (CCS) mitigate produced by cargo ships. implementation CCS faces challenges, including space limitations logistical complexities, possible integration onboard marks step in fight against climate change. The authors propose innovative approach using Calcium Hydroxide Ca(OH) based CCS, offering dual benefit resolution ocean acidification through carbonate (CaCO 3 final product resulting from capture process. Additionally, examines feasibility generated reuse industry, promoting circular economy addressing environmental issues. This solution underscores urgent need transformative measures reduce emissions, line with efforts safeguarding marine environment combat

Language: Английский

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Greenhouse gas emissions of shipping with onboard carbon capture under the FuelEU Maritime regulation: A well-to-wake evaluation of different propulsion scenarios

Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 498, P. 155407 - 155407

Published: Sept. 1, 2024

International shipping has extended its decarbonization strategy to reduce greenhouse gas emissions beyond onboard CO2 emissions. Onboard carbon capture and storage systems are being investigated as a potential solution for fossil-fueled ships, however there is lack of knowledge on the reduction well-to-wake that could be enabled. Considering ambitious emission targets, this may lead inaccurate estimations future fuel mix in maritime sector market share marine engines. This study defines nine ship propulsion scenarios based combinations fossil fuels To better understand capture, calculates intensity each scenario with without from ship's main engine(s). Deploying notably reduces tank-to-wake (54–68 % depending scenario). Contrary emissions, oil-fueled ships found less intensive more cost-effective than LNG-fueled ships. The four-stroke engine achieves lowest 38.31 gCO2eq/MJ, while highest 50.34 gCO2eq/MJ. levels enabled by would allow comply FuelEU Maritime requirement until 2044. compliant subsequent periods, will need consider auxiliary boiler generator higher rate, well measures upstream production transport.

Language: Английский

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Onboard carbon capture and storage (OCCS) for fossil fuel-based shipping: A sustainability assessment

Journal of Cleaner Production, Journal Year: 2024, Volume and Issue: 470, P. 143343 - 143343

Published: Aug. 6, 2024

Limiting the carbon intensity of maritime transport is crucial to meet 2050 net-zero targets. Onboard capture and storage (OCCS) offers a practical short-term solution for reducing shipping-related CO2 emissions until cleaner technologies are ready large-scale adoption. This study introduces an innovative multi-objective approach integrate sustainability into conceptual design decision-making phases OCCS. A systematic technology screening identified possible OCCS solutions, which were then assessed onboard feasibility. Specific indicators defined evaluate performance based on technological, economic, environmental, social criteria, aggregated perspectives. Using fossil fuel-powered cruise ship as case study, results benchmarked against zero-carbon alternatives. Among alternatives considered, chemical absorption by amine scrubbing (AS) advanced cryogenic (A3C) appeared only feasible solutions considering energy requirements. The emerging A3C concept resulted in being outperformed benchmark AS, primarily due environmental impact 1.5 times higher. All alternative technologies, whether OCCS- or fuel-based, found be more sustainable than baseline fuel-based engine, lowering at least 61%. Hydrogen marine fuel leads most promising scenario future shipping operations, footprint up 76%. robustness proposed method was confirmed probabilistic Monte Carlo sensitivity analysis. Overall, obtained can guide toward informed policies promoting propulsion systems.

Language: Английский

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A comprehensive review of post-combustion CO2 capture technologies for applications in the maritime sector: A focus on adsorbent materials

Journal of CO2 Utilization, Journal Year: 2024, Volume and Issue: 89, P. 102955 - 102955

Published: Oct. 13, 2024

Language: Английский

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Study of ship-based carbon capture optimization considering multiple evaluation factors and main engine loads

Journal of Cleaner Production, Journal Year: 2024, Volume and Issue: unknown, P. 143996 - 143996

Published: Oct. 1, 2024

Language: Английский

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Onboard Carbon Capture for Circular Marine Fuels

ACS Sustainable Chemistry & Engineering, Journal Year: 2025, Volume and Issue: 13(10), P. 3919 - 3929

Published: Feb. 4, 2025

The transition to low- and zero-carbon fuels is the primary driver for reducing emissions in maritime industry, with methanol natural gas emerging as most promising options. However, carbon-based will continue emit considerable amounts of pollutants during their use phase. This work explores application circular economy principles shipping industry by integrating carbon capture utilization technologies. Specifically, we propose a closed-loop system where dioxide (CO2) generated onboard captured using chemical absorption technology stored until ship reaches port. CO2 then unloaded transported fuel production facility, it reacts electrolytic hydrogen regenerate required propulsion fuel. Here, evaluate economic, technical, future environmental viability marine fuels. Our findings indicate that could achieve 65% reduction 2050, while lead 55%, both 91% rate. there an economic premium 339 USD tonCO2 -1 260 gas. Additionally, shift expected increase costs factor 3-6 compared conventional operations.

Language: Английский

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Path to Zero Emissions on Maritime Transport: A Multi-Criteria Perspective on Shipowners' Challenge

Karadeniz Fen Bilimleri Dergisi, Journal Year: 2025, Volume and Issue: 15(1), P. 550 - 559

Published: March 15, 2025

The International Maritime Organization has started some studies to reduce emissions from shipping zero by 2050 and adopted this as a policy. However, discussions continue on the feasibility of When looking at near future targets, medium-term, ship owners, seafarers, party states, many other stakeholders are in for tough times. In study, challenges awaiting owners within scope targets were evaluated using Analytical Hierarchy Process (AHP), which is multi-criteria decision-making method (MCDM). results showed that financial issues (33.6%) critical challenge innovations will bring significant economic burden. Operational (19.2%) access new fuels (18.9%), impact systems operations difficulties accessing fuels, storage 2nd 3rd place. They followed competitive pressure (15.2%), finally, compliance with regulations (13.1) was found. Costs importance world economy. Therefore, problems must be overcome first. Achieving IMO's goals requires investments, regulations, international collaborations, great dedication.

Language: Английский

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Advancements and challenges in chemical absorption technologies for shipborne carbon capture applications: Absorbent development, improvement of absorption towers, and system integration

Journal of Energy Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: March 1, 2025

Language: Английский

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Study on CO₂ Capture Performance by Novel Phase-Change Absorbent of AEP/DEEA/H₂O

Industrial & Engineering Chemistry Research, Journal Year: 2025, Volume and Issue: unknown

Published: April 9, 2025

Language: Английский

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