高炉のコークス依存低減：低炭素戦略のレビュー
Reducing Blast Furnace Dependence on Coke: A Review of Low-Carbon Strategies (原題)
Zhanjun Wang, Tongtong Zhang, Yulong Ding
🤖 gxceed AI 要約
日本語
高炉製鉄におけるコークス削減はCO2排出削減に有効だが、コークスの物理的役割（荷支え）の代替が難しい。本レビューは、代替炭素源、水素リッチ還元剤、CO2-to-COリサイクル、装入物構造最適化など、コークスの機能別に削減策を整理し、複数技術の組み合わせが実用的であると結論。
English
This review examines low-carbon strategies to reduce coke consumption in blast furnace ironmaking, emphasizing the difficulty of replacing coke's physical load-bearing role. It categorizes approaches by function—alternative carbon sources, H2-rich reductants, CO2-to-CO recycling, and burden optimization—and concludes that combined use of multiple methods is most practical for meaningful emission cuts.
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
日本の鉄鋼業はCO2排出の約4割を占め、JISFの水素還元などの取り組みが進行中。本レビューの機能別整理は、国内の高炉メーカーが技術ロードマップを策定する際の参考になる。
In the global GX context
Globally, the steel sector faces pressure to decarbonize under initiatives like the Paris Agreement and EU CBAM. This review provides a systematic framework for understanding coke reduction options, which is valuable for technology developers and policymakers assessing low-carbon ironmaking pathways.
👥 読者別の含意
🔬研究者:Provides a structured overview of coke reduction technologies, highlighting the physical role of coke as a key constraint.
🏢実務担当者:Offers a practical framework for evaluating and combining coke-saving technologies in blast furnace operations.
🏛政策担当者:Informs policy on supporting R&D for low-carbon ironmaking, emphasizing the need for integrated approaches.
📄 Abstract（原文）
Abstract Reducing coke consumption is one of the most effective approaches for lowering CO 2 emissions in blast furnace (BF) ironmaking. Coke plays both chemical and physical roles in the BF, acting as a reductant, providing heat, and supporting the burden to maintain gas permeability. While part of its chemical function can be replaced by alternative carbon-based fuels and reducing agents, its physical load-bearing role remains difficult to substitute. This review summarizes recent studies on the partial replacement of coke in BFs from the perspective of low-carbon ironmaking. Rather than treating different coke-saving technologies as separate methods, this review discusses coke reduction according to the specific functions of coke being replaced. Alternative carbon sources, H 2 -rich reductants, CO 2 -to-CO recycling, load-bearing packed-bed materials, and burden structure optimization are considered. This perspective helps explain why alternative fuels, H 2 -rich gases, and recycled CO can reduce the chemical demand for coke, while deeper coke reduction remains limited by the difficulty of replacing coke’s structural role. Overall, meaningful coke reduction is more likely to rely on the combined use of several approaches while maintaining process stability and engineering feasibility. This function-based understanding may help guide the development of more practical lower-carbon BF ironmaking strategies.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1007/s11837-026-08659-xfirst seen 2026-08-19 04:39:46
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