Green methanol production from biomass via a molten salt process: A life cycle environmental and economic assessment
バイオマスからの溶融塩プロセスによるグリーンメタノール製造：ライフサイクル環境・経済評価 (AI 翻訳)
Yuhao Liu, Tao Chen, Aijun Li
🤖 gxceed AI 要約
日本語
本研究は、溶融塩を用いた低温（300℃）熱化学変換によるモウソウチクからのグリーンメタノール製造プロセスを評価。再生可能電力とバイオマス乾留を組み合わせたシナリオが最適で、正味現在価値4,410万元、温暖化係数71.88%削減（従来比）を示した。電力源が支配的要因であり、系統電力では経済性・環境性共に劣る。
English
This study assesses a novel low-temperature (300°C) molten salt process for green methanol from moso bamboo. The optimal scenario (renewable electricity + torrefaction) achieves a positive NPV of 44.1M CNY and a 71.88% reduction in GWP vs benchmarks. Electricity source is the dominant factor; grid electricity makes the process economically and environmentally unviable.
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
日本は水素基本戦略でグリーン水素の貯蔵・輸送技術を重視しており、本研究成果はバイオマス由来メタノールを水素キャリアとする新経路の可能性を示す。日本の豊富な竹資源活用や、CCS/CCUSとの組み合わせにも示唆を与える。
In the global GX context
This paper provides critical LCA/LCC data for a green hydrogen carrier pathway, relevant to global hydrogen economy and carbon neutrality goals. The findings highlight the importance of renewable electricity and can inform ISSB/CSRD-aligned environmental disclosures for emerging technologies.
👥 読者別の含意
🔬研究者:Offers a detailed LCA methodology comparison for a novel thermochemical process, with implications for hydrogen carrier design.
🏢実務担当者:Provides economic viability benchmarks and environmental hotspot analysis for companies considering green methanol production.
🏛政策担当者:Demonstrates the dependence of green hydrogen carriers on renewable electricity, supporting targeted subsidies or grid decarbonization policies.
📄 Abstract（原文）
The effective storage and transport of green hydrogen remains a critical bottleneck for the burgeoning hydrogen economy. The synthesis of green methanol, by coupling electrolytic hydrogen with biogenic carbon, offers a promising solution by creating an energy-dense liquid hydrogen carrier. However, conventional routes using high-temperature biomass gasification often exhibit limited environmental and economic viability due to substantial energy penalties. This study therefore provides the comprehensive sustainability assessment of a novel alternative pathway that utilizes low-temperature (300 °C), molten salt-mediated thermochemical conversion of moso bamboo. A cradle-to-gate life cycle assessment (LCA) and life cycle cost (LCC) model is established to compare four distinct scenarios, varying both the electricity source (renewable vs. grid) and the inclusion of a biomass torrefaction step. The results show that the scenario combining a renewable electricity mix with biomass torrefaction as the optimal pathway. This configuration not only demonstrates economic viability, evidenced by a positive net present value (NPV) of 4.41×107 CNY, but also achieves a net-negative carbon footprint, with a 71.88% reduction in global warming potential (GWP) compared to benchmark technologies. The choice of electricity source is revealed as the single most dominant factor, rendering the process economically unviable (negative NPV) and environmentally burdensome when reliant on the conventional grid. Furthermore, the analysis pinpoints key environmental hotspots, including the upstream impacts of electricity consumption for electrolysis and the unrecovered tar by-products. This work establishes the molten salt-based process as a potentially superior alternative to conventional gasification from both environmental and economic perspectives. The findings offer critical, data-driven decision support for developing next-generation liquid hydrogen carrier production routes that are both environmentally sustainable and economically viable.
🔗 Provenance — このレコードを発見したソース
- semanticscholar https://doi.org/10.1088/1742-6596/3195/1/012017first seen 2026-05-15 20:27:22
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