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Uporabnost lesnih ostankov tujerodnih invazivnih drevesnih vrst za proizvodnjo peletov
Gornik Bučar, Dominika (Author), Prislan, Peter (Author), Smolnikar, Pavel (Author), Stare, Darja (Author), Krajnc, Nike (Author), Gospodarič, Bojan (Author)

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Abstract
Na laboratorijski peletirni napravi smo izdelali pelete iz petih izbranih tujerodnih invazivnih drevesnih vrst, ki rastejo na območju Slovenije in sicer: divjega kostanja (Aesculus hippocastanum), amerikanskega javora (Acer negundo), robinije (Robinia pseudoacacia), trnate gledičevke (Gleditsia triacanthos) in velikega pajesena (Ailanthus altissima) ter mešanic surovine omenjenih tujerodnih invazivnih vrst s smrekovino (Picea abies) v razmerjih 70 : 30 in 50 : 50. Pod enakimi proizvodnimi pogoji smo skupno izdelali 15 različnih vrst peletov. Izdelanim peletom smo določili pomembnejše fizikalne in mehanske lastnosti (vsebnost vode, gostoto nasutja, mehansko obstojnost in vsebnnost pepela). Rezultate smo primerjali z mejnimi vrednostmi, opredeljenimi v standardu SIST EN ISO 17225-2:2014. Vsebnost vode in gostota nasutja vseh izdelanih vrst peletov sta zadostili zahtevam standarda za razvrstitev v najvišji kakovostni razred A1. Mehanske obstojnosti izdelanih peletov niso dosegale zahtev standarda in niso presegale 96,5%(kar je mejna vrednost za B razred). Rezultati kažejo, da imajo med izbranimi tujerodnimi invazivnimi drevesnimi vrstami največji potencial za nadaljnjo optimizacijo peletirnega postopka robinija, trnata gledičevka in visoki pajesen.Ključne besede: lesni ostanki, trdna biogoriva, tujerodne invazivne drevesne vrste, peletiranje, kakovost peletov.

Language:Slovenian
Keywords:wood, high-energy multiple impact, resistance to impact milling, thermal modification, static bending
Tipology:1.01 - Original Scientific Article
Organization:BF - Biotechnical Faculty
Year:2021
Number of pages:Str. 45-58
Numbering:Let. 70, št. 1
UDC:630*839.813:662.71
ISSN on article:0024-1067
DOI:10.26614/les-wood.2021.v70n01a04 This link opens in a new window
COBISS.SI-ID:70829571 This link opens in a new window
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Downloads:41
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Record is a part of a journal

Title:Les
Shortened title:Les
Publisher:Zveza društev inženirjev in tehnikov gozdarstva in lesarstva Slovenije, Zveza društev inženirjev in tehnikov gozdarstva in lesarstva Slovenije, Biotehniška fakulteta, Oddelek za lesarstvo
ISSN:0024-1067
COBISS.SI-ID:13940224 This link opens in a new window

Document is financed by a project

Funder:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije (ARRS)
Project no.:P4-0015
Name:Les in lignocelulozni kompoziti

Funder:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije (ARRS)
Project no.:P2-0182
Name:Razvojna vrednotenja

Funder:ARRS - Agencija za raziskovalno dejavnost Republike Slovenije (ARRS)
Project no.:V4-2016
Name:Možnosti rabe lesa listavcev v slovenskem biogospodarstvu

Funding Programme:Applause Artemis
Project no.:LIFE15 GIE/SI/000770

Secondary language

Language:English
Title:Usefulness of non-native invasive tree species wood residues for pellet production
Abstract:
We produced pellets from five invasive non-native tree species growing in Slovenia on a laboratory pelleting device, namely: wild chestnut (Aesculus hippocastanum), boxelder maple (Acer negundo), black locust (Robinia pseudoacacia), thorny locust (Gleditsia triacanthos) and tree of heaven (Ailanthus altissima), as well as mixtures of the raw material from the above non-native invasive species and spruce (Picea abies) in the ratios 70:30 and 50:50. Under the same production conditions, we produced a total of 15 different types of pellets. The most important physical and mechanical properties (water content, bulk density, mechanical stability and ash content) were determined for the pellets produced. The results were compared with the limits defined in the international standard SIST EN ISO 17225-2:2014. The water content and bulk density of all produced pellet types met the requirements of the standard for the highest quality class A1. The mechanical durability of the pellets produced did not meet the requirements of the standard and did not exceed 96.5% (which is the limit value for quality class B). The results suggest that black locust, thorny locust and tree of heaven have the highest potential for further optimization of the pelleting process.

Keywords:lesni ostanki, trdna biogoriva, tujerodne invazivne drevesne vrste, peletiranje, kakovost peletov

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