Comparative Analysis of Hydrogen Production Pathways: Transition from Fossil-Based to Renewable-Driven Green Hydrogen Systems
水素製造経路の比較分析：化石燃料ベースから再生可能エネルギー駆動のグリーン水素システムへの移行 (AI 翻訳)
Lt Col Ranjana Kandel, D. Ghosh
🤖 gxceed AI 要約
日本語
本論文は、グレー、ブルー、ターコイズ、グリーン水素の製造経路を原料、プロセス、炭素排出の観点から比較分析する。グリーン水素は再生可能エネルギー電解によるゼロエミッション経路として最も持続可能であり、CCUSやメタン熱分解などの移行技術と共に、低炭素水素システムへの移行を促進する。
English
This paper comparatively analyzes hydrogen production pathways including grey, blue, turquoise, and green hydrogen based on feedstock, process, and carbon emissions. Green hydrogen via renewable electrolysis is the most sustainable zero-emission pathway, while transitional technologies like CCUS and methane pyrolysis support the shift toward low-carbon hydrogen systems.
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
日本の水素基本戦略やGX実現に向けた水素供給網構築に示唆を与える。特に、グリーン水素の普及には再生可能エネルギー拡大と電解技術の効率化が不可欠であり、政策・産業界の連携が重要。
In the global GX context
This comparative analysis informs global hydrogen strategy discussions, particularly for countries like Japan that are investing in hydrogen infrastructure. It underscores the need for scalable electrolysis and CCUS integration to achieve cost-competitive green hydrogen.
👥 読者別の含意
🔬研究者:Provides a clear taxonomy and emission benchmarks for hydrogen pathways, useful for lifecycle analysis and technology roadmap studies.
🏢実務担当者:Helps corporate sustainability teams evaluate hydrogen sourcing options and decarbonization potential for industrial applications.
🏛政策担当者:Offers evidence for designing hydrogen subsidies, carbon pricing, and infrastructure investments that prioritize green hydrogen scalability.
📄 Abstract（原文）
Hydrogen has emerged as a key energy carrier for enabling the global transition toward low-carbon and sustainable energy systems due to its high energy density, clean conversion characteristics and cross-sector applicability. However, the environmental impact of hydrogen production varies significantly depending on the production pathway. This study presents a comprehensive analysis of hydrogen generation routes, including grey, blue, turquoise and green hydrogen, based on feedstock, process mechanisms, and carbon emissions. Grey hydrogen, produced through steam methane reforming (SMR), currently dominates global production but is associated with high CO₂ emissions. Blue hydrogen integrates carbon capture, utilization, and storage (CCUS) to reduce emissions, while turquoise hydrogen offers a promising alternative through methane pyrolysis with solid carbon as a by-product. In contrast, green hydrogen produced via renewable-powered electrolysis represents a zero-emission pathway and is considered the most sustainable long-term solution. Furthermore, the paper examines the evolution of hydrogen technologies and highlights the critical role of renewable energy integration in enabling decentralized hydrogen production systems. A comparative assessment of production pathways emphasizes the transition from fossil-fuel-based methods to renewable-driven systems. The study also underscores the importance of advanced electrolysis technologies and system integration approaches in improving efficiency and scalability. The findings support the growing adoption of green hydrogen, particularly in applications requiring energy security and decarbonization, such as defence infrastructure and distributed energy systems.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.56025/ijaresm.14052667first seen 2026-05-30 05:21:07 · last seen 2026-06-03 05:19:04
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