Low-cost copper ore oxygen carrier for Bio-CLOU systems: performance assessment and potential for negative-carbon bioenergy (BECCS)
Bio-CLOUシステム用低コスト銅鉱石酸素キャリア：性能評価とネガティブカーボン（BECCS）の可能性 (AI 翻訳)
Tiago Roberto da Costa, Amirhossein Filsouf, Iñaki Adánez-Rubio, Renata Martins Braga, Dulce Maria Araújo Melo, Juan Adanez
🤖 gxceed AI 要約
日本語
本研究は、低コストの天然銅鉱石をBio-CLOUシステムの酸素キャリアとして評価した。TGAと流動層実験により、高い酸素輸送容量（19.1%）と酸素放出能力（3.9%）を示し、長期安定性と磁気分離可能性を確認した。これにより、BECCSの大規模実装を促進する可能性がある。
English
This study evaluates a low-cost natural copper ore as an oxygen carrier for Bio-CLOU systems. TGA and fluidized bed experiments show high oxygen transport capacity (19.1%) and oxygen uncoupling capability (3.9%), with stable performance and magnetic separability, positioning it as a promising material for scalable BECCS applications.
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
日本では、2050年カーボンニュートラル達成に向けてBECCSを含むネガティブエミッション技術の開発が重要視されている。本研究は、低コストの酸素キャリアを提供することで、国内のバイオマス発電におけるCO2回収コスト低減に寄与する可能性がある。
In the global GX context
Globally, BECCS is recognized as a key negative-emission technology, and this study contributes by offering a low-cost oxygen carrier for efficient CO2 capture in biomass conversion. The findings support the scalability of CLOU-based BECCS, aligning with international climate goals.
👥 読者別の含意
🔬研究者:酸素キャリア材料の性能評価手法とBio-CLOUシステムへの応用可能性に関する知見を提供。
🏢実務担当者:バイオマス発電事業者やCCS関連企業は、低コストCO2回収技術の選択肢として検討可能。
🏛政策担当者:ネガティブエミッション技術の支援政策を検討する際の技術的根拠となる。
📄 Abstract（原文）
Bioenergy with carbon capture and storage (BECCS) is recognized as a key negative-emission strategy for climate mitigation, and its large-scale implementation can be strengthened through Chemical Looping with Oxygen Uncoupling (CLOU), which enables efficient solid biomass conversion with inherent CO 2 capture. In this context, this study investigates a low-cost natural copper ore as an oxygen carrier for Bio-CLOU systems. The material (designated as CuB) was thermally treated to remove sulfur and enhance mechanical strength, and its redox performance was assessed via TGA and batch fluidized bed experiments under biomass combustion conditions. TGA results revealed a high oxygen transport capacity (R OC,CLC = 19.1%) and significant oxygen uncoupling capability (R OC,CLOU = 3.9%), with stable performance over cycles. BFBR experiments demonstrated rapid regeneration and sustained oxygen release up to 950 °C, including under low oxygen concentrations (5 vol% O 2 ), conditions compatible with biomass-based systems. Physicochemical characterization confirmed the structural stability and magnetic separability of CuB after prolonged redox cycling, although a slight decrease in mechanical strength was observed. The combination of high reactivity, efficient oxygen uncoupling capacity, operational stability, and low-cost natural origin positions CuB as a highly promising oxygen carrier for scalable Bio-CLOU applications, enabling renewable energy generation with inherent CO 2 capture and potential negative emissions. • A copper ore was optimized and evaluated as a low-cost oxygen carrier for CLOU and Bio-CLOU. • CuB showed high oxygen transport (R OC,CLC = 19.1%) and uncoupling capacity (R OC,CLOU = 3.9%). • Long-term batch fluidized-bed tests demonstrated low attrition rates and fast regeneration. • Magnetic susceptibility enables potential recovery from biomass-derived ash streams. • CuB represents a sustainable alternative for CO 2 -capture processes, supporting Bio-CLOU/BECCS renewable-energy applications.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1016/j.biombioe.2026.109460first seen 2026-05-17 06:12:59 · last seen 2026-05-21 04:48:22
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