欧州の鉄鋼工場へのコークス炭と固体回収燃料の供給の経済環境分析
Mario Ávila1, Sofie Verbrugge2, Inge Bellemans1
1Department of Materials, Textiles and Chemical Engineering, Research Group Sustainable Materials Science, Ghent University (UGent), Technologiepark 46, Ghent, 9052, Belgium.
Journal of environmental management
|September 4, 2025
まとめ
地元の石炭は2022年以降の輸入石炭より安くなり,地元の焦炭を使用し,鉄鋼生産のための固体回収燃料の選択肢を探求することで,排出量を大幅に削減しました.
科学分野:
- サプライチェーン管理
- 環境経済学
- 材料科学
背景:
- 欧州の鉄鋼産業はコークス石炭に依存し,固体回収燃料 (SRF) のような代替燃料をますます探求しています.
- グローバルサプライチェーンの動態,地政学的な出来事,エネルギー危機は原材料のコストと利用可能性に大きな影響を与えます.
- 産業用インプットのライフサイクル評価は,環境と経済的トレードオフを理解するために不可欠です.
研究 の 目的:
- 欧州の鉄鋼工場のコック炭とSRFの供給チェーンにおける経済的環境性能を評価する.
- 異なる市場シナリオにおける様々な投入組合せと輸送方法の影響を分析する.
- 輸入源,輸送方式,炭素価格設定などの要因がサプライチェーンの持続可能性に及ぼす影響を評価する.
主な方法:
- 6つのサプライチェーンのシナリオを比較した分析
- 多様な輸入品の調達 (現地 vs 輸入) と輸送方式 (船舶,道路,鉄道,川) の調査
- 価格変動,輸送コスト,炭素税に対する感受性分析
- 距離と相対的な燃料コストに基づいた経済性評価
主要な成果:
- 輸入禁止,エネルギー危機,輸送の障害により,2022年に世界のコクシング石炭価格が急上昇し,地元の石炭はより費用対効果的になりました.
- 輸入された代替品よりも地元の焦炭を使用すると,輸送関連の排出量は33.5%減少します.
- 固体回収燃料は,道路輸送で最大1180km (現地石炭に対して) または2210km (輸入石炭に対して) の環境上の利益をもたらしますが,河川輸送は一貫して有利です.
- 新しい海上炭素税は,総投入コストにわずか (0.4%) の影響を及ぼすと予測されています.
結論:
- ローカルコークス石炭への移行とSRFの使用の最適化は,欧州の鉄鋼部門のサプライチェーンの持続性と回復力を高めることができます.
- 輸送距離と燃料の相対的な価格設定は,SRFの経済的生存可能性にとって重要な要因です.
- 供給チェーン戦略は 市場の変動や環境規制の変化に適応し 長期的な効率化を目指す必要があります
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