Experimental evaluation of a flexible natural gas and hydrogen burner in the electric arc furnace
フレキシブルな天然ガス・水素バーナーのアーク炉における実験的評価 (AI 翻訳)
Lilly Schulte, A. Reinicke, T. Echterhof, J. Greguoldo, F. Vecchiet
🤖 gxceed AI 要約
日本語
本論文は、電炉（EAF）の補助バーナーにおいて天然ガスを水素に置換することでCO2排出を最大27%削減できることを、実験・実機規模で実証した。50kWのパイロット試験と4MWの産業炉試験の結果、鋼材への水素吸収は検出されず、水素がEAFバーナーのドロップイン燃料として技術的に成立することを確認した。
English
This paper experimentally demonstrates that substituting natural gas with hydrogen in electric arc furnace (EAF) auxiliary burners can reduce CO2 emissions by up to 27%. Tests at 50 kW pilot and 4 MW industrial scale show no hydrogen pickup in liquid steel, confirming hydrogen as a drop-in fuel for EAF burners.
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
日本は鉄鋼生産量世界第3位であり、水素製錬技術の開発が急務。本研究成果は、既存の電炉に水素バーナーを容易に導入できる可能性を示し、日本の鉄鋼業界の脱炭素化に直接的な示唆を与える。
In the global GX context
Hard-to-abate steel sector faces decarbonization pressure globally. This work provides concrete experimental evidence that hydrogen can substitute natural gas in EAF burners without compromising steel quality, supporting hydrogen transition in industrial heating.
👥 読者別の含意
🔬研究者:Confirms technical feasibility of hydrogen in EAF burners, providing experimental data for future hydrogen combustion modeling.
🏢実務担当者:Demonstrates a drop-in solution for reducing Scope 1 emissions in electric arc furnace steelmaking with minimal modification.
🏛政策担当者:Provides evidence supporting investments in hydrogen infrastructure for industrial decarbonization, especially for steel.
📄 Abstract（原文）
In the context of the decarbonization of the steel industry, the electric arc furnace (EAF) has emerged as a primary focus of research. Historically, the EAF has been predominantly utilized in recycling-based steelmaking, specifically for the melting of scrap materials to produce crude steel. The recent surge in research interest in the EAF is driven by the objective of optimizing resource utilization and reducing emissions. Given its primary reliance on electrical energy, the EAF emerges as a promising solution for reducing steel production emissions. In addition to the electrical energy input, the EAF is equipped with auxiliary burners to prevent ‘cold spots’ during melting and shorten the process duration by increasing the energy input. These auxiliary burners typically operate with oxyfuel, natural gas and oxygen. The combustion of natural gas represents a potential for reducing CO 2 emissions through the substitution with hydrogen. In the RFCS-funded project “DevH2forEAF - Developing and enabling H 2 burner utilization to produce liquid steel in EAF,” an innovative injector-burner designed for using oxygen and arbitrary mixtures of natural gas and H 2 (up to 100% H 2 ) as the fuel was developed for use in EAF, providing a flexible solution for a possible addition of hydrogen to the natural gas line. This injector-burner was subjected to rigorous testing in a range of trials within the environment of an EAF. A downscaled version of the burner, with a power output of 50 kW, was tested in the pilot-scale EAF at RWTH Aachen University, with a particular focus on analyzing its impact on steel quality. Subsequently, a 4 MW burner-injector was installed in two distinct industrial EAFs and utilized in operation. The results showed that switching one burner to hydrogen resulted in combined CO₂ emission reductions of up to 27% for the burner emissions, with no detectable increase in hydrogen pick-up in the liquid steel, confirming the technical viability of hydrogen as a drop-in fuel for EAF burners.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.1051/metal/2025127first seen 2026-05-15 20:44:35
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