製糖業における廃棄物発電とカーボンフットプリント評価：コジェネレーション、エコ効率、エネルギー価格感応度の5年間分析
Waste-to-energy and carbon footprint assessment in sugar manufacturing: A five-year analysis of cogeneration, eco-efficiency, and energy Price sensitivity (原題)
Keivan Arastou, Amir Hossein Hosseinzadeh, Nahid Ghaed Amini, Bahram Mohabbati
🤖 gxceed AI 要約
日本語
イランの製糖工場の5年間データを用い、ゲート・トゥ・ゲートのカーボンフットプリントをReCiPe 2016で評価。平均1701kgCO2/トンで天然ガスが97%を占め、廃蒸気コジェネにより年間10.7%削減（1300万kgCO2/年回避）。支出当たり炭素強度（CIC）と物理的炭素強度（CIE）の指標対、脱カップリング弾性を組み合わせた点が新規性。
English
A five-year gate-to-gate carbon footprint assessment of an Iranian sugar factory using ReCiPe 2016. Average footprint was 1701 kgCO2/ton, 97% from natural gas; on-site waste-steam cogeneration cut emissions 10.7% annually (13.0 million kgCO2/year avoided). The study introduces a paired CIC (carbon intensity of energy spending) and CIE (carbon intensity of energy) indicator linking economic and physical efficiency, plus decoupling elasticity analysis.
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
日本の製糖・食品産業はScope1排出の大きいセクターであり、バイオマス廃棄物コジェネや工場単位の炭素強度指標はSSBJのScope1算定や省エネ投資判断に応用可能。エネルギー価格と炭素の関係を可視化するCIC/CIE対は、エネルギーコスト高騰下の日本企業の脱炭素投資評価に示唆を与える。
In the global GX context
Facility-level carbon accounting combined with economic indicators speaks to Scope 1 measurement under GHG Protocol and ISSB. The CIC/CIE pairing offers a diagnostic for firms in regulated, subsidized energy markets weighing cogeneration investment against energy price volatility, relevant to transition planning and internal carbon pricing debates.
👥 読者別の含意
🔬研究者:工場レベルの炭素強度と経済指標を結ぶCIC/CIE指標対と脱カップリング弾性の実証例として参照価値がある。
🏢実務担当者:廃棄物コジェネによる排出削減効果と、エネルギー価格変動下での炭素効率モニタリング指標の設計に活用できる。
🏛政策担当者:補助金・規制価格下のエネルギー市場におけるコジェネ促進と炭素効率指標の政策設計に示唆。
📄 Abstract（原文）
Energy-intensive agro-industrial sectors such as sugar manufacturing face substantial carbon footprints, particularly in fossil-fuel-dependent economies with subsidized, regulated energy markets. Using a five-year dataset (2021–2025) from an Iranian sugar factory, this study conducts a gate-to-gate operational carbon footprint assessment, with the resulting inventory characterized using the ReCiPe 2016 carbon footprint impact characterization method. The framework further integrates eco-efficiency and economic indicators. The average carbon footprint was 1701 kgCO 2 /ton (gate-to-gate, sugar stream), driven by natural gas (97%), with human health dominating the weighted endpoint impacts (0.0639 person-years/ton of sugar stream, unallocated, an indicative normalized estimate). On-site waste-steam cogeneration reduced emissions by 10.7% annually (13.0 million kgCO 2 /year avoided). We introduce the carbon intensity of energy spending (CIC), a cost-referenced carbon indicator with a five-year average of 177.9 kgCO 2 /US$. Because CIC is defined as emissions divided by expenditure, it responds inversely to energy price changes; this arithmetic property is illustrated through sensitivity analysis but should not be interpreted as a behavioral price response. CIC is therefore interpreted alongside the price-independent carbon intensity of energy (CIE) metric (57.9 kgCO 2 /GJ). A complementary decoupling elasticity analysis shows carbon emissions tracked production output proportionally in most years, with one notable exception. The novelty lies in the joint CIC and CIE indicator pair linking economic and physical carbon-efficiency dimensions, and the integration of decoupling elasticity with cost-based diagnostics at the facility level.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.1016/j.wmb.2026.100393first seen 2026-10-18 04:52:11
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