熱分解ベース炭素回収・隔離における地域特異性：技術経済・環境性能の最適化
Regional specificity in pyrolysis-based carbon capture and sequestration: optimizing techno-economic and environmental performance (原題)
Kingsley Okoli, Pallavi Dubey, Mark Mba Wright
🤖 gxceed AI 要約
日本語
バイオマスの急速熱分解によりバイオオイルとバイオ炭を生成し、90%を隔離する産業規模システムを設計。TEAとLCAを統合した枠組みで、7種の原料とコロラド・ルイジアナ・アイオワの地域ケースを評価した。トウモロコシ残渣ベースラインでMCACは197.13ドル/tCO₂、アイオワが最低MCAC（200.74ドル）と最高純隔離量を達成。スケールアップでMCACは83.6ドル/tCO₂まで低減可能と示した。
English
This study designs an industrial-scale fast pyrolysis system converting biomass into sequesterable bio-oil and biochar, directing 90% of output to sequestration. Integrating techno-economic analysis and life cycle assessment across seven feedstocks and regional cases (Colorado, Louisiana, Iowa), the corn stover baseline yields a minimum carbon abatement cost of USD 197.13/tCO2. Iowa shows the lowest MCAC (USD 200.74/tCO2) and highest net sequestration, with scale-up potentially reducing MCAC to USD 83.6/tCO2.
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
日本はバイオマス発電・熱利用とCCS適地が限られるが、地域最適化とMCAC算出手法は国内のカーボンクレジット・JCM案件や自治体の脱炭素計画に応用可能。SSBJ開示における除去量・隔離量の定量評価にも示唆を与える。
In the global GX context
Amid global scale-up of carbon dioxide removal (CDR) under ISSB/CSRD disclosure and voluntary carbon markets, this work offers a replicable TEA-LCA framework for comparing biochar/bio-oil sequestration costs across regions. It informs how removal credits could be priced and verified, complementing TCFD/transition-finance discussions on negative emissions.
👥 読者別の含意
🔬研究者:TEAとLCAを統合した地域別CCS評価手法とMCAC算定の枠組みを参考にできる。
🏢実務担当者:バイオマス調達地域の選定と隔離コスト試算により、CDR事業の投資判断や炭素除去クレジット戦略に活用可能。
🏛政策担当者:炭素除去の公的支援・クレジット設計において、地域別MCACとスケール効果を根拠として参照できる。
📄 Abstract（原文）
Abstract Pyrolysis oil wells present a compelling pathway for carbon capture and sequestration (CCS) by converting biomass into sequesterable bio-oil and biochar. This study designs and evaluates an industrial-scale (10 tonnes/day biomass, 7,800 hours/year) fast pyrolysis system, directing 90% of heavy oil, light oil, and biochar output towards sequestration, to assess its profitability and environmental impact across various scenarios and feedstocks (Red Oak, Clean Pine, Tulip Poplar, Hybrid Poplar, Corn Stover, Switchgrass, Oriented Strand Board). A comprehensive decision-making framework, integrating a detailed techno-economic analysis (TEA) and life cycle assessment (LCA), was developed in a spreadsheet environment. The TEA, informed by BioSTEAM and National Laboratory of the Rockies (NREL) data, accounts for capital and operational costs, while the LCA, utilizing OpenLCA and EcoInvent, assesses lifecycle emissions. The baseline scenario using corn stover (USD 30/tonne) yielded a minimum carbon abatement cost (MCAC) of USD 197.13/tonne CO₂, a bio-oil production cost of USD 234.50/tonne oil, and a net carbon sequestration of 3866.1 tonnes/year over 20 years, with lifecycle emissions of 0.5 kg CO₂e/kg oil. Regional case studies in Colorado, Louisiana, and Iowa highlighted significant impacts of feedstock and transportation, with Iowa demonstrating the lowest MCAC (USD 200.74/tonne CO₂) and highest net CO₂ sequestration (1.67 CO2/kg oil). Scale-up analysis suggests potential MCAC reductions to USD 83.6/tonne CO₂ (or USD 152/tonne CO₂ excluding biochar sequestration). This study underscores the potential of pyrolysis oil wells for cost-effective CCS, emphasizing the importance of regional optimization and providing a valuable tool for stakeholders to evaluate site-specific deployment scenarios and bridge the gap between research and commercialization/
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1088/2753-3751/aeada5first seen 2026-10-01 04:55:17
🔔 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。