Analysis of Carbon Metabolism Mechanisms and Reduction Strategies Toward Low-Carbon Steel Manufacturing
L D Zhang, Su Yan, Yuxing Yuan, Tao Du
🤖 gxceed AI 要約
日本語
本研究は、鉄鋼製造プロセスにおける炭素代謝メカニズムを解析するモデルを開発。物質流とエネルギーネットワークの結合を考慮し、炭素固定・移行・散逸のパターンを定量化。結果、コークス工程では投入炭素の72.51%が固定される一方、焼結工程ではほぼ全量が散逸。鉄鋼システム全体の炭素散逸量は440.62 kg-C/t-CSで、製鉄工程が33.92%を占める。
English
This study develops a carbon metabolism simulation model for steel manufacturing, integrating material flows and energy networks. It quantifies carbon fixation, migration, and dissipation patterns. Results show 72.51% of carbon is fixed in coking, nearly 100% dissipates in sintering, and total dissipation is 440.62 kg-C/t-CS with ironmaking contributing 33.92%.
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
日本は鉄鋼業が主要排出源であり、本モデルは日本鉄鋼メーカーのSSBJ開示やSBT達成に向けた排出量算定精度向上に応用可能。中国の事例だが、プロセス別炭素フローの可視化手法は日本でも有用。
In the global GX context
This paper provides a detailed carbon accounting methodology for integrated steel production, relevant to global decarbonization efforts and emission disclosure frameworks like TCFD and ISSB. The focus on process-level carbon metabolism offers actionable insights for emission reduction strategies.
👥 読者別の含意
🔬研究者:Offers a novel modeling approach for carbon accounting in steel manufacturing, suitable for further refinement and application to other industrial sectors.
🏢実務担当者:Helps steel companies identify emission hotspots across processes, enabling targeted reduction measures and improved carbon reporting.
🏛政策担当者:Supports the formulation of sector-specific decarbonization policies by quantifying carbon flows and dissipation in steel production.
📄 Abstract（原文）
Reducing emissions is increasingly critical for mitigating the environmental impact of the iron and steel industry. Achieving this transition requires an accurate evaluation of carbon emission intensity for steel production, which relies on an in-depth analysis of carbon metabolism mechanisms across the entire steel production chain. Existing approaches predominantly focus on carbon tracing within material flows, which cannot deeply integrate carbon migration pathways with energy flows and thus fail to reveal the actual sources and transmission mechanisms of carbon emissions. To address this gap, this study develops a carbon metabolism simulation model of the steel manufacturing process that considers the coupling of material production with the energy network. The differentiated carbon metabolism patterns are characterized in terms of carbon fixation, migration, and dissipation to support more accurate carbon emission accounting and enable the formulation of targeted decarbonization strategies. The results show that the coking process fixes 72.51% of its carbon input. The sintering and pelletizing process shows typical carbon dissipation characteristics, with nearly 100% of input carbon discharged. Carbon emissions from steelmaking and the rolling process are mainly induced by indirect energy consumption. The total carbon dissipation of integrated steel production system is 440.62 kg-C/t-CS, with the ironmaking process contributing the largest share of 33.92%.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.3390/ma19132847first seen 2026-07-05 04:58:33
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