From Process to Grid: Life-Cycle Carbon Footprint of Bio-e-methanol and Regionally Differentiated Power Mix Pathways Towards Carbon Intensity Targets in China
Shan Gu, Shenghao He, Li Yang, Xiaoye Liang, Jinsong Zhou
🤖 gxceed AI 要約
日本語
中国のメタノール製造企業の実運用データを用い、バイオe-メタノールのcradle-to-gateライフサイクル炭素フットプリントを評価した。ベースラインでは電力消費が炭素フットプリントの76.6%を占め、次いで蒸気が22.6%であった。「低炭素電力＋バイオマス由来蒸気」の組み合わせが深い脱炭素化に不可欠である。中国7地域の電網別分析では、低炭素電源比率71%の西南電網が調整なしでGrade C基準を満たし、わずかな調整でGrade A・BおよびEU RED II基準も達成可能だが、他地域は低炭素電力比率の引き上げが必要である。
English
Using operational data from a Chinese methanol producer, this study performs a cradle-to-gate life-cycle carbon footprint assessment of bio-e-methanol. Electricity consumption dominates the footprint (76.6%), followed by steam (22.6%), making 'low-carbon electricity + biomass-derived steam' essential for deep decarbonisation. Extending to China's seven regional grids, only the Southwest grid (71% low-carbon electricity) meets Grade C without adjustment and can reach Grade A/B and EU RED II thresholds with minor changes; all other regions require higher low-carbon electricity penetration.
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
中国の地域別電網と炭素強度基準を組み合わせた本分析は、日本企業がScope 3や製品カーボンフットプリントを評価する際の電源構成依存性の重要性を示す。SSBJや有報でのGHG開示において、調達電力の地域差をどう扱うかの参考になる。
In the global GX context
This paper links regional power grid carbon intensity to product-level life-cycle thresholds, offering a quantitative template for Scope 3 and product carbon footprint accounting under differing grid mixes. It informs how CBAM and EU RED II-style carbon intensity requirements interact with regional electricity decarbonisation, relevant to global disclosure and transition finance discussions.
👥 読者別の含意
🔬研究者:地域別電源構成と製品LCAを統合した炭素強度評価手法の実証例として参考になる。
🏢実務担当者:自社製品のカーボンフットプリント削減には、電力調達の低炭素化と熱源（蒸気）の転換が鍵となることを示す。
🏛政策担当者:地域別電網の低炭素化目標と製品炭素基準の整合を図る政策設計の必要性を示唆する。
📄 Abstract（原文）
Based on actual operational data from a methanol production enterprise in China, this study conducts a cradle-to-gate life-cycle carbon footprint assessment of bio-e-methanol. The carbon emission contributions of each process stage are systematically quantified and further extended to China’s seven regional power grids to evaluate their capability to meet China’s Grade A/B/C standards and the EU RED II carbon intensity thresholds under current power mixes. The results show that under the baseline scenario using the Chinese public power grid and coal-derived steam, electricity consumption is the largest contributor (76.6%) of the carbon footprint of bio-e-methanol, followed by steam (22.6%). The combined strategy of “ low-carbon electricity + biomass-derived steam” is critical for deep decarbonisation. Regional analysis reveals that the Southwest China grid, with its uniquely high low-carbon electricity share of 71%, can meet the Grade C standard without any adjustment, and the Grade A, B and EU RED II standards with only minor adjustments to its power mix. All other regions require varying degrees of low-carbon electricity penetration increases. Residual power composition is the dominant factor determining compliance requirements for carbon threshold, far outweighing regional differences in current low-carbon electricity shares. This study provides a quantitative basis for methanol producers in different regions of China to optimise their power structures and devise differentiated low-carbon transition pathways.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.3390/pr14193142first seen 2026-10-02 04:55:30
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