中国鉄鋼セクターにおける省エネ、CO2・汚染物質削減、先端技術のコスト性能
Energy conservation, CO2 and pollutant abatement, and cost performance of advanced technologies in China's iron and steel sector (原題)
Yongle Zhang, Wenqing Xu, Yixi Wang, Yang Yang, Yidan Zhang, Gang Wang, Kun He, Tingyu Zhu
🤖 gxceed AI 要約
日本語
中国鉄鋼業の12の新興技術と2の既存技術について、物質・エネルギーフローと技術経済パラメータを収集し、排出係数と削減供給曲線に基づく評価枠組みを構築した。CCSが最大のCO2削減ポテンシャルを持ち、環境便益を考慮すると複数技術で削減コストがマイナスとなる。技術ポートフォリオにより省エネ・NOx・粉塵除去やCO2・SO2・PM2.5削減の最適構成が異なることを示した。
English
This study assesses 12 emerging and 2 existing technologies in China's iron and steel sector using material/energy flows and techno-economic parameters. A framework based on emission factors and conservation supply curves quantifies energy, CO2, and pollutant abatement and costs. CCS offers the largest CO2 reduction, and several technologies achieve negative abatement costs when environmental benefits are included. Optimal technology portfolios differ for energy/NOx/dust versus CO2/SO2/PM2.5 reduction.
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
中国鉄鋼業の脱炭素技術評価は、日本の鉄鋼業が直面するScope1排出削減や水素還元製鉄などの技術選択に示唆を与える。特に削減コストがマイナスとなる技術の特定は、日本企業の投資判断や政策支援の優先順位付けに参考となる。
In the global GX context
This paper contributes to global decarbonization scholarship by providing a comprehensive techno-economic assessment framework for the iron and steel sector, which is a hard-to-abate industry. It highlights the importance of considering co-benefits of air pollutant abatement in cost assessments, relevant for TCFD/ISSB disclosure on transition plans and climate-related financial risks.
👥 読者別の含意
🔬研究者:鉄鋼業の脱炭素技術評価における統合的な枠組みと、環境便益を考慮した削減コストの算出方法を提供する。
🏢実務担当者:技術ポートフォリオの最適化により、省エネ・CO2・汚染物質削減を同時に達成する投資判断に活用できる。
🏛政策担当者:削減コストがマイナスとなる技術の優先的普及支援や、鉄鋼業の脱炭素政策設計に示唆を与える。
📄 Abstract（原文）
Assessing the energy conservation and pollutant abatement performance of advanced technologies is critical for achieving deep decarbonization in the iron and steel industry (ISI). Research on ultra-low-emission technologies that integrates energy consumption, carbon accounting, and air pollutant abatement remains lacking. Accordingly, industrial application cases of energy-efficient technologies and end-ofpipe measures in the ISI were investigated, including 12-emerging and 2-existing technologies. The primary material and energy flows for these 14 technologies were identified, and key techno-economic parameters were collected. A comprehensive assessment framework based on emission factors and the conservation supply curve was developed to quantify energy consumption, CO 2 and air pollutant abatement, and the associated abatement cost. The results revealed that (1) end-of-pipe measures mainly consume energy, except for wet removal technologies for converters (T13) and dry dust removal technology (T14); (2) CCS technology of T10 has the greatest potential to mitigate CO 2 , and the total net emission reductions are 0.523–0.680 tCO 2 /t-cs. T04 has a synergistic benefit in reducing other fuel consumption, such as preheated natural gas, oxygen, carbon power and electrode. and (3) after considering environmental benefits, the abatement costs for T03, electric arc furnace scrap continuous preheating and feeding technology (T04), T07, T11, electrostatic precipitator technology (T12) and T14 were below zero, and more attention could be focused on these technologies' priority for promotion. (4) technology portfolio case 4 including T07, bag filter (T11) and T14 achieved the best energy savings, NOx and dust removal capacity. Case 2 with limestone–gypsum desulfurization (T06), T12 and T14 achieved the best CO 2 , SO 2 and PM 2.5 emission reduction effect.
🔗 Provenance — このレコードを発見したソース
- primary_source https://doi.org/10.1016/j.eiar.2026.108767first seen 2026-10-11 23:53:54
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