Feasibility of Using Oil from Spent Coffee Grounds in Small-Scale Marine Boilers
使用済みコーヒーかす由来油の小型船舶用ボイラーへの利用可能性 (AI 翻訳)
Tae‐Ho Lee, Young-hyun Ryu, JB Cho, Chunguang Jin
🤖 gxceed AI 要約
日本語
使用済みコーヒーかす（SCG）の熱分解油を船舶用代替燃料として活用する可能性を検討。小型ボイラーで軽油との混合率0～25%まで実験し、燃焼効率は約79.2%を維持、CO2・NOxの増加を確認。カーボンニュートラル実現には乳化技術や燃焼最適化が必要。
English
This study evaluates pyrolysis oil from spent coffee grounds (SCGs) as an alternative marine fuel for IMO 2050 targets. Tests on a 30 L boiler with up to 25% blend in marine gas oil showed consistent combustion efficiency (~79.2%) but increased NOx and CO2. Carbon neutrality via blending alone is limited, requiring emulsification and combustion optimization.
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
日本は海運大国であり、IMOの2050年目標達成に向け、バイオ燃料や代替燃料の実用化が急務。本研究は廃棄物由来燃料の実証データを提供し、国内の舶用燃料多様化に示唆を与える。
In the global GX context
As the IMO pushes for 2050 carbon neutrality, alternative fuels like SCG-derived oil could play a role in decarbonizing shipping. This study provides experimental performance data on a promising waste-to-fuel pathway, highlighting technical challenges (NOx, blending limits) that need addressing for global adoption.
👥 読者別の含意
🔬研究者:Provides experimental data on combustion and emissions of SCG oil in marine boilers, useful for further optimization studies.
🏢実務担当者:Demonstrates a potential low-carbon fuel option for small-scale marine boilers, though blending alone is insufficient for full decarbonization.
🏛政策担当者:Informs on the feasibility and limitations of waste-derived biofuels in maritime regulations; supports R&D investment in emulsification and NOx control.
📄 Abstract（原文）
This study investigated the potential of using pyrolysis oil derived from spent coffee grounds (SCGs) as an alternative marine fuel to comply with the International Maritime Organization’s 2050 carbon-neutrality targets. A 30 L-class small-scale marine boiler was designed and fabricated to comparatively analyze the combustion and exhaust emission characteristics of coffee ground oil (CGO) blended with marine gas oil at blending ratios ranging from 0% to 25%. The experimental results indicated that as the blending ratio increased, the concentrations of oxygen and carbon monoxide slightly decreased, whereas those of carbon dioxide and nitrogen oxides (NOx) tended to increase. The combustion efficiency was consistently maintained at approximately 79.2%, confirming the potential feasibility of CGO as an alternative fuel. However, the study identified limitations in achieving carbon neutrality through blending alone. Consequently, further research on emulsification technologies and combustion optimization is needed to address phase separation caused by density differences and mitigate NOx emissions.
🔗 Provenance — このレコードを発見したソース
- openalex https://doi.org/10.3390/jmse14100879first seen 2026-05-27 04:52:59
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