Green Hydrogen Production for Decarbonizing the Steel Industry: Energy and Economic Assessment of Electrolysis and Ammonia Cracking Systems
鉄鋼業界の脱炭素化のためのグリーン水素製造: 電解とアンモニアクラッキングシステムのエネルギー・経済評価 (AI 翻訳)
Elvira Spatolisano, Antonio Trinca, D. Flagiello, Giorgio Vilardi
🤖 gxceed AI 要約
日本語
本研究は、鉄鋼業の脱炭素化に向け、アルカリ水電解とアンモニアクラッキングの2つのグリーン水素供給経路を技術経済的に評価。水素直接還元（HyDR）プロセスとの統合を想定し、Aspen Plusを用いたプロセスシミュレーションによりエネルギー消費、水素需要、CO2排出量を定量化。その結果、アンモニアクラッキングが大規模展開において競争力のある移行経路となり得ることを示した。
English
This study presents a techno-economic assessment of green hydrogen supply via alkaline electrolysis and ammonia cracking for steel decarbonization. Using Aspen Plus simulations, it evaluates energy consumption, hydrogen demand, and CO2 emissions for integration into hydrogen-based direct reduction. Results suggest ammonia cracking is a viable transitional pathway for low-carbon steel production.
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
日本は鉄鋼生産量が多く、水素還元技術の実証が進んでいる。本研究成果は、日本のグリーン水素調達戦略や水素基本戦略の策定に示唆を与える。
In the global GX context
As global steel decarbonization accelerates under ISSB and transition finance frameworks, this study provides comparative techno-economic evidence for hydrogen supply options, informing investment and policy decisions.
👥 読者別の含意
🔬研究者:Offers a comparative techno-economic framework for green hydrogen pathways in steel decarbonization.
🏢実務担当者:Helps steel and hydrogen companies evaluate supply chain options for HyDR routes.
🏛政策担当者:Provides evidence on ammonia cracking as a transitional hydrogen carrier, relevant for subsidy and infrastructure planning.
📄 Abstract（原文）
The global transition toward a low-carbon economy has intensified the interest in green hydrogen as a key enabler of industrial decarbonization. In particular, the steel sector, one of the most carbon-intensive industries, offers significant opportunities for emissions reduction through H2-based technologies. This study presents a techno-economic assessment of alternative green hydrogen supply pathways, namely alkaline electrolysis and ammonia cracking, and evaluates their integration into hydrogen-based direct reduction (HyDR) routes. Process simulations are performed using Aspen Plus® V14 to quantify the energy consumption, hydrogen demand, and associated CO2 emissions across multiple configurations and case studies. A comprehensive 3E (energy, economics, and environmental) evaluation framework is applied to compare system performance and assess the suitability of each pathway for large-scale deployment. The results indicate that ammonia cracking represents a technically viable and potentially competitive hydrogen supply option for steel decarbonization under the assumed operating conditions, highlighting its relevance as a transitional pathway toward low-carbon steel production.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.3390/en19030717first seen 2026-05-15 19:19:52
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