Emerging potential of spent coffee ground valorization for fuel pellet production in a biorefinery
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27240%2F22%3A10249885" target="_blank" >RIV/61989100:27240/22:10249885 - isvavai.cz</a>
Result on the web
<a href="https://link.springer.com/content/pdf/10.1007/s10668-022-02361-z.pdf" target="_blank" >https://link.springer.com/content/pdf/10.1007/s10668-022-02361-z.pdf</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s10668-022-02361-z" target="_blank" >10.1007/s10668-022-02361-z</a>
Alternative languages
Result language
angličtina
Original language name
Emerging potential of spent coffee ground valorization for fuel pellet production in a biorefinery
Original language description
The global market for fuel pellets (FPs) has been steadily growing because of a shift to coal substitutes. However, sustainability and the availability of biomass are the main issues. Various kinds of bio-wastes can be valorized through cutting-edge technologies. In the coffee industry, a valuable organic waste called spent coffee grounds (SCGs) is generated in bulk. SCG can be divided into two components, namely spent coffee ground oil and defatted spent coffee grounds (DSCG). SCG and DSCG can be used to produce FPs with excellent higher heating values. This review highlights that burning FPs composed of 100% SCG is not feasible due to the high emission of NO R . Moreover, the combustion is accompanied by a rapid temperature drop due to incomplete combustion which leads to lower boiler combustion efficiencies and increased carbon monoxide emissions. This was because of the low pellet strength and bulk density of the FP. Mixing SCG with other biomass offers improved boiler efficiency and emissions. Some of the reported optimized FPs include 75% SCG+ 20% coffee silverskin, 30% SCG + 70% pine sawdust, 90% SCG+ 10% crude glycerol, 32% SCG+ 23% coal fines + 11% sawdust + 18% mielie husks + 10% waste paper + 6% paper pulp, and 50% SCG+ 50% pine sawdust. This review noted the absence of combustion and emissions analyses of DSCG and the need for their future assessment. Valorization of DSCG offers a good pathway to improve the economics of an SCG-based biorefinery where the extracted SCGO can be valorized in other applications. The combustion and emissions of DSCG were not previously reported in detail. Therefore, future investigation of DSCG in boilers is essential to assess the potential of this industry and improve its economics. [GRAPHICS] .
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
20700 - Environmental engineering
Result continuities
Project
<a href="/en/project/LTI19002" target="_blank" >LTI19002: The involvement of Czech research organizations in the Energy Research Alliance EERA</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
Environment, Development and Sustainability
ISSN
1387-585X
e-ISSN
1573-2975
Volume of the periodical
2022
Issue of the periodical within the volume
may
Country of publishing house
US - UNITED STATES
Number of pages
39
Pages from-to
nestrankovano
UT code for WoS article
000789798900002
EID of the result in the Scopus database
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