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Cradle-to-Gate Life Cycle Assessment of Industrial Lyocell Fiber Production in Türkiye: A Site-Specific Case Study

産業用ライオセル繊維生産のゆりかごからゲートまでのライフサイクルアセスメント：トルコにおけるサイト固有のケーススタディ (AI 翻訳)

Olgaç Sürmelihindi, Fatih Balcı

Sustainability📚 査読済 / ジャーナル2026-07-03#炭素会計Origin: Global経営インパクト: コスト削減対象セクター: textiles
DOI: 10.3390/su18136778
原典: https://doi.org/10.3390/su18136778

🤖 gxceed AI 要約

日本語

本研究は、トルコにおける産業規模のライオセル繊維生産の環境影響を、サイト固有のデータを用いて評価した。気候変動、化石資源使用、淡水使用、土地利用が主要な影響カテゴリーであり、温暖化係数は4.13kgCO2eq/kg繊維であった。電力・蒸気・溶解パルプ・輸送がホットスポットであり、太陽光発電への代替で大幅削減可能と示唆された。

English

This study evaluates the cradle-to-gate environmental impacts of industrial lyocell fiber production in Türkiye using site-specific data. Climate change, fossil resource use, freshwater use, and land use are key categories, with a GWP of 4.13 kg CO2 eq/kg fiber. Electricity, steam, dissolving pulp, and transportation are hotspots; substituting with photovoltaic electricity shows substantial reduction potential.

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

トルコの事例だが、日本の化学繊維メーカー（レーヨン・ライオセル）にとって、LCA手法と一次データの活用は有報や統合報告書での環境情報開示に応用可能。SSBJ基準における製品別GHG排出量算定の参考となる。

In the global GX context

This site-specific LCA provides primary data for lyocell fiber production, contributing to global environmental benchmarking. It supports TCFD/ISSB-aligned product-level carbon footprint reporting and hotspot identification, relevant for textile companies seeking transition finance or EPD development.

👥 読者別の含意

🔬研究者:Provides a detailed LCA case study with primary data and sensitivity analysis for lyocell fiber, useful for benchmarking and methodology refinement.

🏢実務担当者:Identifies key emission hotspots (electricity, steam) and suggests renewable energy substitution for decarbonization of textile production.

🏛政策担当者:Offers evidence for setting environmental standards and supporting green textile policies, though specific to Türkiye.

📄 Abstract（原文）

This study aims to evaluate the cradle-to-gate environmental impacts of industrial-scale lyocell fiber production in Türkiye using site-specific foreground data. The assessment was conducted in accordance with ISO 14040 and ISO 14044 using SimaPro 9.4 software and the Ecoinvent v3.7.1 database, with a declared unit of 1 kg of lyocell fiber at the facility gate. The results indicate that climate change, fossil resource use, freshwater use, and land use are the most relevant impact categories within the evaluated system. The total Global Warming Potential was calculated as 4.13 kg CO2 eq/kg fiber. Contribution analysis showed that the production stage was the dominant source of climate change impacts, followed by raw material supply, transportation, pulp production, and waste management. Electricity consumption, steam generation, dissolving pulp production, and transportation logistics were identified as the main environmental hotspots. A screening-level sensitivity assessment further indicated that electricity supply is a key improvement lever, with photovoltaic electricity substitution showing substantial potential for reducing GWP. The findings provide site-specific evidence for industrial lyocell production in Türkiye and demonstrate the value of primary LCA datasets for hotspot identification, product-level environmental reporting, sustainability benchmarking, and possible future EPD development.

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