エネルギー・脱炭素困難セクターにおける炭素回収の地域CO2排出削減と大気質への影響
Regional CO 2 Emission Reductions and Air‐Quality Implications of Carbon Capture in Energy and Hard‐to‐Abate Sectors (原題)
Michele Francesco Arrighini, Claudio Marchesi, Laura Zecchi, Marialuisa Volta
🤖 gxceed AI 要約
日本語
本研究はイタリア・ポー平原を対象に、6つのCCS構成を統合評価モデルMAQで評価した。天然ガス燃焼へのアミン吸収法（60〜90%回収）と工業炉への酸素燃焼を組み合わせ、回収CO2の輸送をトラックとパイプラインで比較。正味CO2削減は105.7〜111.9 MtCO2/年で、パイプライン輸送が優位。全シナリオでPM2.5・NO2が低下し、年間162〜215人の死亡回避効果が示された。
English
This study evaluates six CCS configurations in Italy's Po Valley using the MAQ integrated assessment model, combining amine-based capture on natural gas combustion (60-90%) with oxy-fuel capture in industrial furnaces. Net CO2 reductions range 105.7-111.9 MtCO2/yr, with pipeline transport outperforming trucking. All scenarios lower PM2.5 and NO2, yielding 162-215 avoided deaths per year, showing CCS delivers climate mitigation plus modest air-quality co-benefits when the full energy and transport chain is counted.
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
日本でもCCSはGX推進法・JOGMEC主導の先進的CCS事業で重点領域であり、回収率や輸送形態が正味削減量と大気質に与える影響を定量化した本手法は、国内CCS事業の環境影響評価や自治体合意形成に示唆を与える。
In the global GX context
As ISSB/CSRD disclosure increasingly scrutinizes full value-chain emissions, this paper's explicit accounting of transport and energy penalties in CCS net reductions offers a methodological template for credible transition-plan claims and for regulators assessing CCS as a decarbonization lever.
👥 読者別の含意
🔬研究者:CCSの正味削減量と大気質コベネフィットを統合評価モデルで定量化する手法の実例として参照できる。
🏢実務担当者:CCS導入検討時に輸送形態やエネルギー消費を含めた正味削減量と地域環境影響を評価する視点を提供する。
🏛政策担当者:CCS政策設計で回収率・輸送インフラ選択が正味気候便益と健康コベネフィットに与える差を考慮すべき根拠となる。
📄 Abstract（原文）
ABSTRACT Carbon capture and storage (CCS) can reduce carbon dioxide (CO 2 ) emissions from energy and industrial activities, but its regional air quality and health implications depend on the capture technology, transport configuration, and associated energy requirements. This study assessed six CCS configurations in the Po Valley, Northern Italy, using the MAQ integrated assessment model. Monoethanolamine‐based post‐combustion capture was applied to natural gas (NG) combustion activities in the energy sector (MS1) at 60%, 85%, and 90% CO 2 removal rates. Oxy‐fuel combustion was applied to NG industrial furnaces in the industrial combustion sector (MS3) and kept constant across scenarios. Captured CO 2 from MS1 was transported either by road tankers or pipeline, whereas the MS3 CO 2 stream was assumed to be transported by pipeline. Gross CO 2 captured, transported, and stored ranged from 121.952 to 127.946 MtCO 2 /year. After accounting for road‐transport emissions, CO 2 conditioning, and electricity demand for oxygen production, net CO 2 reductions ranged from 105.744 MtCO 2 /year for Truck‐60 to 111.925 MtCO 2 /year for Pipeline‐90. Pipeline transport provided a higher net CO 2 reduction than tanker transport at the same capture rate. All scenarios reduced domain‐average PM2.5 and NO 2 concentrations relative to the CLE2020 baseline. Mean cell‐level reductions ranged from 0.063 to 0.075 µg/m 3 for PM2.5 and from 0.234 to 0.293 µg/m 3 for NO 2 , with statistically significant differences after false‐discovery‐rate correction. Estimated avoided attributable deaths ranged from 162 to 186 deaths/year for PM2.5 and from 175 to 215 deaths/year for NO 2 . Pipeline configurations achieved the greatest air‐quality and health benefits because they avoided additional road‐transport emissions. These findings show that CCS can provide substantial net climate mitigation and modest local air‐quality co‐benefits, provided that the full energy and transport chain is explicitly accounted for.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1002/ghg.70055first seen 2026-11-08 04:58:58 · last seen 2026-11-13 05:11:28
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