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Naslov: Primernost ostankov mlete kave za proizvodnjo peletov Avtorji: ID Gornik Bučar, Dominika (Avtor) ID Prislan, Peter (Avtor) ID Verhovšek, Dejan (Avtor) ID Gospodarič, Bojan (Avtor) Datoteke: URL - Izvorni URL, za dostop obiščite https://journals.uni-lj.si/les-wood/article/view/18619   PDF - Predstavitvena datoteka, prenos (2,37 MB) MD5: B3C1EA3E44B0D073B88F941167C7A735   Jezik: Slovenski jezik Tipologija: 1.01 - Izvirni znanstveni članek Organizacija: SciVie - Gozdarski inštitut Slovenije Povzetek: Za doseganje cilja evropske energetsko-podnebne politike, da do leta 2050 dosežemo podnebno nevtralnost s prehodom na obnovljive vire energije, je potrebno aktivirati različne razpoložljive obnovljive vire, vključno z biološkimi ostanki oz. odpadki. Eden od takih bioloških odpadkov, ki nastaja v velikih količinah in se večinoma nepredelan odlaga v okolje, so ostanki mlete kave. Ker ostanke mlete kave sestavljajo celuloza, hemiceluloza, lignin in proteini, predstavljajo velik potencial tudi kot biogorivo, ki lahko delno nadomesti lesno biomaso pri proizvodnji peletov. V raziskavi smo v laboratorijskih pogojih izdelali pelete iz ostankov mlete kave, ki smo jim dodali različne deleže (0 %, 25 %, 50 %, 75 %) žagovine. Izdelanim peletom smo določili lastnosti in jih glede na izmerjene vrednosti razvrstili v kakovostne razrede po standardu SIST EN ISO 17225-6:2021. Ugotovili smo, da imajo peleti z večjim deležem ostankov mlete kave višjo kurilno vrednost, večjo vsebnost pepela ter nižjo mehansko obstojnost. Peleti, izdelani iz ostankov mlete kave in dodatkom žagovine (50 % ali več), izkazujejo obetavne lastnosti kot vhodna surovina za proizvodnjo peletov. Ključne besede: peleti, ostanki mlete kave, žagovina, biološki odpadki, kurilna vrednost, kakovost peletov Status publikacije: Objavljeno Verzija publikacije: Objavljena publikacija Datum objave: 01.01.2024 Leto izida: 2024 Št. strani: str. 69-80 Številčenje: Let. 73, št. 1 PID: 20.500.12556/DiRROS-21464  UDK: 630*839.81:663.938.4 ISSN pri članku: 2590-9932 DOI: 10.26614/les-wood.2024.v73n01a06  COBISS.SI-ID: 200904451  Opomba: Nasl. z nasl. zaslona; Opis vira z dne 5. 7. 2024; Datum objave v DiRROS: 10.02.2025 Število ogledov: 592 Število prenosov: 313 Metapodatki:    Citiraj gradivo Navadno besedilo BibTeX EndNote XML EndNote/Refer RIS ABNT ACM Ref AMA APA Chicago 17th Author-Date Harvard IEEE ISO 690 MLA Vancouver : Kopiraj citat

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Gradivo je del revije

Naslov:	Les
Založnik:	Biotehniška fakulteta, Oddelek za lesarstvo, Biotehniška fakulteta, Oddelek za lesarstvo, Založba Univerze
ISSN:	2590-9932
COBISS.SI-ID:	290940672

Gradivo je financirano iz projekta

Financer:	ARIS - Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije
Številka projekta:	P4-0015-2020
Naslov:	Les in lignocelulozni kompoziti

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Financer:	ARIS - Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije
Številka projekta:	P4-0107-2020
Naslov:	Gozdna biologija, ekologija in tehnologija

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Financer:	ARIS - Javna agencija za znanstvenoraziskovalno in inovacijsko dejavnost Republike Slovenije
Številka projekta:	P2-0182-2019
Naslov:	Razvojna vrednotenja

Licence

Licenca:	CC BY-NC 4.0, Creative Commons Priznanje avtorstva-Nekomercialno 4.0 Mednarodna
Povezava:	http://creativecommons.org/licenses/by-nc/4.0/deed.sl
Opis:	Licenca Creative Commons, ki prepoveduje komercialno uporabo, vendar uporabniki ne rabijo upravljati materialnih avtorskih pravic na izpeljanih delih z enako licenco.

Sekundarni jezik

Jezik:	Angleški jezik
Naslov:	Suitability of spent ground coffee for pellet production
Povzetek:	In order to achieve the European energy and climate policy goal of climate neutrality by 2050, it is necessary to activate various available renewable energy sources, including biological residues or waste. One such biological waste, which is produced in large quantities and usually enters the environment unprocessed, is spent ground coffee. As spent ground coffee consist of cellulose, hemicellulose, lignin and proteins, it has great potential as a biofuel, and could partially replace wood biomass in the production of pellets. In our research, we have produced pellets under laboratory conditions from spent ground coffee to which we have added different proportions (0%, 25%, 50%, 75%) of sawdust. We determined the properties of the pellets and categorized them into quality classes based on the measured values according to the SIST EN ISO 17225-6:2021 standard. We found that pellets with a higher proportion of spent ground coffee residues have a higher calorific value, higher ash content and lower mechanical durability. Pellets made from spent ground coffee residues with the addition of sawdust (50% or more) show promising properties for use as a raw material for pellet production.In order to achieve the European energy and climate policy goal of climate neutrality by 2050, it is necessary to activate various available renewable energy sources, including biological residues or waste. One such biological waste, which is produced in large quantities and usually enters the environment unprocessed, is spent ground coffee. As spent ground coffee consist of cellulose, hemicellulose, lignin and proteins, it has great potential as a biofuel, and could partially replace wood biomass in the production of pellets. In our research, we have produced pellets under laboratory conditions from spent ground coffee to which we have added different proportions (0 %, 25 %, 50 %, 75 %) of sawdust. We determined the properties of the pellets and categorized them into quality classes based on the measured values according to the SIST EN ISO 17225-6:2021 standard. We found that pellets with a higher proportion of spent ground coffee residues have a higher calorific value, higher ash content and lower mechanical durability. Pellets made from spent ground coffee residues with the addition of sawdust (50 % or more) show promising properties for use as a raw material for pellet production.
Ključne besede:	pellets, spent coffee grounds, sawdust, bio waste, calorific value, pellets quality

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