Spent coffee grounds and wood co-firing: Fuel preparation, properties, thermal decomposition, and emissions
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F22%3APU145686" target="_blank" >RIV/00216305:26210/22:PU145686 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0960148122006371" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0960148122006371</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.renene.2022.05.003" target="_blank" >10.1016/j.renene.2022.05.003</a>
Alternative languages
Result language
angličtina
Original language name
Spent coffee grounds and wood co-firing: Fuel preparation, properties, thermal decomposition, and emissions
Original language description
Spent coffee grounds (SCG) is the byproduct of coffee preparation. With coffee being one of world's most traded commodities, the question of SCG utilization is naturally raised. Among the proposed and tried methods, direct co-firing with wood or other materials is still perceived as the method most local SCG producers could easily incorporate into a waste-to-energy supply chain for circular economy. This study thus delved into assessing the technical feasibility of SCG and wood co-firing. As part of the research, a thorough investigation into fuel properties, pelleting, boiler performance and emissions was conducted. A possible antagonistic behavior between SCG and wood was observed during thermogravimetric analysis and the subsequent emission tests. The thermogravimetric analysis also showed negligible difference in thermal decomposition of SCG from different places of origin. The mechanical durability of wood/SCG pellets was found to be significantly reduced by SCG, and the pellets would not meet the EN ISO 17255 requirements in any of the tested ratios. Compared to wood, the NO emissions were significantly higher when firing the SCG-containing pellets. However, no direct correlation was found between the NO concentrations and the amount of SCG in the blends, thus hinting at other factors affecting the NO formation.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20704 - Energy and fuels
Result continuities
Project
<a href="/en/project/EF16_019%2F0000753" target="_blank" >EF16_019/0000753: Research centre for low-carbon energy technologies</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
RENEWABLE ENERGY
ISSN
0960-1481
e-ISSN
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Volume of the periodical
193
Issue of the periodical within the volume
červen
Country of publishing house
GB - UNITED KINGDOM
Number of pages
10
Pages from-to
464-474
UT code for WoS article
000803887800005
EID of the result in the Scopus database
2-s2.0-85130353069