冶金炉電極開発における炭素骨材へのクラフトリグニンによる化石炭素の代替
Substitution of Fossil Carbon with Kraft Lignin in Carbon Aggregates for Metallurgical Furnace Electrode Development (原題)
Lena Reimund, Luis M. Lopéz Renau, Jesse F. White, Björn Glaser
🤖 gxceed AI 要約
日本語
本研究は、製紙産業の副産物であるクラフトリグニン（KL）を再生可能な炭素源として利用し、冶金用電極の炭素骨材を製造する可能性を検討した。KLと石油コークスの混合物をペレット化し、2650℃まで加熱して物性を評価した結果、60wt%のKL含有でも従来品と同等の黒鉛化度と電気抵抗率を示し、最大50-70wt%の化石炭素を代替できることが示された。これにより、電極製造におけるGHG排出削減への貢献が期待される。
English
This study investigates the use of kraft lignin (KL), a pulp industry by-product, as a renewable carbon source for carbon aggregates in metallurgical electrodes. Pellets of KL and petroleum coke were heated to 2650°C; even at 60 wt% KL, materials achieved 70-80% graphitization and resistivity below 200 μΩ m, comparable to conventional aggregates. Up to 50-70 wt% of fossil carbon could be replaced without compromising performance, offering a pathway to lower-emission electrode production.
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・非鉄金属産業が盛んであり、電極用炭素材料の脱化石燃料化は国内製造業のGHG削減に寄与する。また、SSBJ開示やサプライチェーン排出量算定において、素材転換によるScope 3削減効果は重要な論点となり得る。
In the global GX context
This research aligns with global efforts to decarbonize industrial processes, particularly in metallurgy. It offers a renewable alternative to fossil-based carbon electrodes, which could help companies meet CSRD and ISSB disclosure requirements by reducing Scope 1 and 3 emissions. The findings are relevant for industries seeking to lower their carbon footprint in response to regulatory and market pressures.
👥 読者別の含意
🔬研究者:Provides experimental evidence on the feasibility of lignin-based carbon aggregates, opening avenues for further optimization and scale-up studies.
🏢実務担当者:Offers a potential pathway to reduce fossil carbon use in electrode manufacturing, which could lower supply chain emissions and improve sustainability credentials.
🏛政策担当者:Highlights the potential of biomass-derived materials to reduce industrial emissions, supporting policies that promote circular economy and bio-based alternatives.
📄 Abstract（原文）
Abstract Fossil-based carbon electrodes used in metallurgical smelting and reduction processes contribute significantly to global greenhouse gas emissions, while stricter EU regulations on polyaromatic hydrocarbon exposure linked to coal tar pitch use further emphasize the need for safer and more sustainable electrode materials. Kraft lignin (KL), an abundant by-product of the pulp and paper industry with an annual production of 42.5 million tons, currently has limited high-value applications. This study investigates the feasibility of using KL as a renewable carbon source to produce carbon aggregate materials by pelletizing mixtures of green petroleum coke and KL in varying ratios. The pellets were heated up to 2650 °C and evaluated based on their thermophysical, mechanical, and electrical properties relevant to electrode applications. Results show that KL effectively binds with petroleum coke when pelletized under pressure. Even at 60 wt % KL content, the materials exhibit a graphitization degree of 70−80% and electrical resistivity below 200 μΩ m, comparable to conventional carbon aggregates. The mixtures withstand both slow and fast heat treatments, demonstrating their suitability for industrial calcination processes. Up to 50−70 wt % of fossil-based carbon could be replaced by KL without compromising aggregate stability or electrical performance, demonstrating strong potential for lower-emission metallurgical electrode production.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1021/acssusresmgt.6c00426first seen 2026-09-05 05:13:34
🔔 こうした論文の新着を逃したくない方は キーワードアラート に登録（無料・3キーワードまで）。
gxceed は公開メタデータに基づく研究支援データセットです。要約・翻訳・解説は AI 支援で生成されています。 最終的な解釈・検証は利用者が原典資料に基づいて行うことを前提とします。