炭素の転換：CO2回収・利用経路、ポテンシャル、課題に関するレビュー
Transforming Carbon: A Review of CO2 Capture and Utilization Pathways, Potentials, and Challenges (原題)
M. Amin Mir, Sook Keng Chang, Mohammad Ayaz Ahmad, Muhammad Azhar Ali Khan, Syed M. Hasnain, Duaa Hefni, Kim Andrews, Ercan Bursal
🤖 gxceed AI 要約
日本語
本レビューは、物理・化学・生物・鉱物化の各経路にわたるCCU/CDUを評価するため、2000〜2024年の11,000件超の文献をPRISMA準拠でスクリーニングし、186件を比較統合した。燃料・化学品は理論上のCO2需要が大きいが炭素が再放出され一時的緩和にとどまり、鉱物化や一部建設資材はより永続的な貯留を提供する。メタノール、尿素、ポリカーボネート、CO2養生コンクリートは実装に近い一方、電解燃料や藻類バイオ燃料、DAC連携変換はエネルギー・水・土地・コストの制約が大きい。TRL・損益分岐コスト・緩和の永続性・市場規模を統合した実現可能性マトリクスを提示し、低炭素エネルギー下でのCCS・DAC・排出削減との併用を条件にCCUが脱炭素化に寄与し得ると結論づける。
English
This review synthesizes 186 studies (from >11,000 screened, 2000–2024) on carbon capture and utilization pathways across physical, chemical, biological, and mineralization routes. Fuels and commodity chemicals offer large theoretical CO2 demand but only temporary mitigation due to re-emission, whereas mineralization and some construction products provide durable storage. Methanol, urea, polycarbonates, and CO2-cured concrete are near deployment, while electrochemical fuels, algae biofuels, and DAC-coupled conversion face energy, hydrogen, water, land, and cost constraints. A feasibility matrix combining TRL, breakeven-cost sensitivity, mitigation permanence, and market scale is proposed to guide technology selection.
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CCS/CCUをGX推進法やグリーン成長戦略の重点分野と位置づけ、JOGMECやNEDOが実証を主導している。本レビューの実現可能性マトリクスは、国内企業がCCU事業の投資判断やLCA/TEA評価を行う際の技術選定基準として活用できる。
In the global GX context
CCU is increasingly recognized in global climate policy (IPCC AR6, EU Innovation Fund) as a complementary mitigation option, but its inclusion in corporate climate targets and disclosure (e.g., GHG Protocol, SBTi) remains contested. This review's harmonized LCA/TEA framework and feasibility matrix can inform how CCU credits and permanence are treated in transition finance and net-zero accounting.
👥 読者別の含意
🔬研究者:CCU経路の比較評価とLCA/TEA手法の統一化に向けた研究課題を整理する上で有用。
🏢実務担当者:CCU技術の選定や投資判断において、TRL・コスト・緩和永続性を考慮した実現可能性マトリクスを参照できる。
🏛政策担当者:CCUの脱炭素貢献を評価する際、低炭素エネルギー条件やLCA/TEAの標準化、CCS/DACとの併用を政策設計に組み込む必要性を示唆。
📄 Abstract（原文）
Atmospheric carbon dioxide (CO 2 ) management requires technologies that pair emission reduction with durable carbon management. This review evaluates carbon capture and utilization (CCU) and carbon dioxide utilization (CDU) pathways across physical, chemical, biological, and mineralization routes. Following a PRISMA-informed search of Web of Science, Scopus, and Google Scholar, more than 11,000 peer-reviewed records published from 2000 to 2024 were screened; 927 full-text papers were assessed and 186 studies with extractable cost, scale, TRL, life-cycle assessment (LCA), or techno-economic assessment (TEA) data were retained for comparative synthesis. The analysis shows that fuels and commodity chemicals can offer large theoretical CO2 demand but usually provide temporary mitigation because carbon is re-emitted during use, whereas mineralization and some construction products provide more durable storage. Methanol, urea, dimethyl carbonate, polycarbonates, and CO2-cured concrete are closer to deployment, while electrochemical fuels, algae biofuels, and DAC-coupled conversion remain constrained by energy demand, hydrogen supply, water and land needs, cost uncertainty, and inconsistent system boundaries. A feasibility matrix combining TRL, breakeven-cost sensitivity, mitigation permanence, and market scale is introduced to guide technology selection. The review concludes that CCU can support decarbonization when powered by low-carbon energy, assessed with harmonized LCA/TEA methods, and deployed alongside CCS, direct air capture (DAC), mineralization, and rapid emissions reduction.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1016/j.ceja.2026.101473first seen 2026-09-22 04:38:33
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