Green Ammonia for Marine Decarbonization: Production Pathways and Engine Applications
海運脱炭素のためのグリーンアンモニア：生産経路とエンジン応用 (AI 翻訳)
Zhuoli Yang, Maojiang Zheng, Jie Wang, XiaoHua Wang
🤖 gxceed AI 要約
日本語
本論文は、船舶用ゼロカーボン燃料としてのグリーンアンモニアの生産経路と、純アンモニア及び水素・ディーゼル等との混合燃料のエンジン応用を体系的にレビュー。混合戦略により燃焼安定性が向上しCO2削減が可能だが、NOx制御が課題。水素添加や選択的触媒還元(SCR)によりNOxを1 g/kWh以下に低減可能としている。
English
This paper reviews the production pathways of green ammonia for marine decarbonization and its application in marine engines. It systematically examines combustion efficiency and emissions of pure ammonia and blends with hydrogen, diesel, etc. Blended strategies improve combustion stability and reduce CO2, but NOx control remains a challenge. Hydrogen addition or high-reactivity pilot fuels mitigate ammonia's low flame speed; combined with SCR, NOx emissions can be reduced below 1 g/kWh.
Unofficial AI-generated summary based on the public title and abstract. Not an official translation.
📝 gxceed 編集解説 — Why this matters
日本のGX文脈において
日本は海運大国であり、グリーンアンモニアは船舶燃料として注目されている。本レビューはエンジン応用の現状と課題を整理しており、日本の造船・海運企業や政策立案者にとって有用な情報を提供する。
In the global GX context
The shipping industry faces IMO decarbonization targets. This review systematically covers green ammonia combustion in marine engines, blending strategies, and NOx control, offering a reference for global researchers and industry practitioners working on zero-carbon fuels.
👥 読者別の含意
🔬研究者:This paper provides a comprehensive review of combustion and emissions of ammonia and its blends, useful for researchers focusing on alternative marine fuels.
🏢実務担当者:Shipping companies and engine manufacturers can use the findings to evaluate ammonia as a fuel and understand emission control requirements.
🏛政策担当者:Policymakers can use this to assess the readiness and challenges of green ammonia as a marine fuel for regulatory frameworks.
📄 Abstract（原文）
Sulfur emission regulations and "dual carbon" goals are driving the shipping industry toward zero-carbon fuels. This paper reviews green ammonia production pathways and their application in marine engines. Green ammonia, synthesized via renewable-energy-driven electrochemical processes, enables near-zero carbon emissions. The review systematically examines the combustion efficiency and emissions of pure ammonia and its blends (with hydrogen, diesel/biodiesel, and methanol/ethanol) in both compression-ignition and spark-ignition engines. Blended strategies improve combustion stability and reduce CO2 emissions, but NOx control remains a critical challenge. Hydrogen addition or high-reactivity pilot fuels effectively mitigate ammonia’s low laminar flame speed and long ignition delay. When combined with homogeneous combustion and selective catalytic reduction (SCR), NOx emissions can be reduced to below 1 g/kWh. Overall, green ammonia is a promising marine alternative fuel, though further optimization of blending strategies and emission control is required for commercial deployment.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.1109/net-lc70284.2026.11605730first seen 2026-07-25 05:25:44
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