Possibilities for obtaining pellets by single-screw extrusion of biomass from black pine (Pinus nigra Arn.)

The aim of the present study was to investigate the possibilities for obtaining pellets by single-screw extrusion of black pine (Pinus nigra Arn.) biomass. Two fractions of black pine needles – 1) with dp ≥ 500 μm and bulk density ρn = 0.243 g/cm3 and 2) black pine twigs with d ≥ 500 μm and ρn = 0.2...

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Autores principales:	Simitchiev Apostol, Bozadzhiev Bozidar, Lazarov Lazar, Stankov Stanko, Fidan Hafize, Stoyanova Albena
Formato:	article
Lenguaje:	EN FR
Publicado:	EDP Sciences 2021
Materias:	Environmental sciences GE1-350
Acceso en línea:	https://doaj.org/article/3951d7082ad44173923003a4a1369459
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spelling	oai:doaj.org-article:3951d7082ad44173923003a4a13694592021-12-02T17:12:13ZPossibilities for obtaining pellets by single-screw extrusion of biomass from black pine (Pinus nigra Arn.)2267-124210.1051/e3sconf/202132702010https://doaj.org/article/3951d7082ad44173923003a4a13694592021-01-01T00:00:00Zhttps://www.e3s-conferences.org/articles/e3sconf/pdf/2021/103/e3sconf_pepm2021_02010.pdfhttps://doaj.org/toc/2267-1242The aim of the present study was to investigate the possibilities for obtaining pellets by single-screw extrusion of black pine (Pinus nigra Arn.) biomass. Two fractions of black pine needles – 1) with dp ≥ 500 μm and bulk density ρn = 0.243 g/cm3 and 2) black pine twigs with d ≥ 500 μm and ρn = 0.297 g/cm3, were obtained. Wheat bran with dp ≥ 500 μm and bulk density ρn = 0.258 g/cm3 in a ratio of 1:1 was added to the obtained fractions. The experiments showed that getting pellets by single-screw extrusion of biomass from twigs and needles of black pine was possible when mixing them in a 1:1 ratio with wheat bran. The addition of wheat bran improved the smoothness and homogeneity of the produced pellets and increased their density. High-density pellets with a low sectional expansion index were produced during extrusion. The productivity of extruding mixtures of black pine twigs with wheat bran was 30% higher than that made from a mix of black pine needles and wheat bran. The pellets obtained after mixing biomass from black pine and wheat bran had over 13% higher density than those produced entirely from wheat bran. The presence of black pine biomass increased the quality of the final product while at the same time having a positive effect on both productivity and specific energy consumption.Simitchiev ApostolBozadzhiev BozidarLazarov LazarStankov StankoFidan HafizeStoyanova AlbenaEDP SciencesarticleEnvironmental sciencesGE1-350ENFRE3S Web of Conferences, Vol 327, p 02010 (2021)
institution	DOAJ
collection	DOAJ
language	EN FR
topic	Environmental sciences GE1-350
spellingShingle	Environmental sciences GE1-350 Simitchiev Apostol Bozadzhiev Bozidar Lazarov Lazar Stankov Stanko Fidan Hafize Stoyanova Albena Possibilities for obtaining pellets by single-screw extrusion of biomass from black pine (Pinus nigra Arn.)
description	The aim of the present study was to investigate the possibilities for obtaining pellets by single-screw extrusion of black pine (Pinus nigra Arn.) biomass. Two fractions of black pine needles – 1) with dp ≥ 500 μm and bulk density ρn = 0.243 g/cm3 and 2) black pine twigs with d ≥ 500 μm and ρn = 0.297 g/cm3, were obtained. Wheat bran with dp ≥ 500 μm and bulk density ρn = 0.258 g/cm3 in a ratio of 1:1 was added to the obtained fractions. The experiments showed that getting pellets by single-screw extrusion of biomass from twigs and needles of black pine was possible when mixing them in a 1:1 ratio with wheat bran. The addition of wheat bran improved the smoothness and homogeneity of the produced pellets and increased their density. High-density pellets with a low sectional expansion index were produced during extrusion. The productivity of extruding mixtures of black pine twigs with wheat bran was 30% higher than that made from a mix of black pine needles and wheat bran. The pellets obtained after mixing biomass from black pine and wheat bran had over 13% higher density than those produced entirely from wheat bran. The presence of black pine biomass increased the quality of the final product while at the same time having a positive effect on both productivity and specific energy consumption.
format	article
author	Simitchiev Apostol Bozadzhiev Bozidar Lazarov Lazar Stankov Stanko Fidan Hafize Stoyanova Albena
author_facet	Simitchiev Apostol Bozadzhiev Bozidar Lazarov Lazar Stankov Stanko Fidan Hafize Stoyanova Albena
author_sort	Simitchiev Apostol
title	Possibilities for obtaining pellets by single-screw extrusion of biomass from black pine (Pinus nigra Arn.)
title_short	Possibilities for obtaining pellets by single-screw extrusion of biomass from black pine (Pinus nigra Arn.)
title_full	Possibilities for obtaining pellets by single-screw extrusion of biomass from black pine (Pinus nigra Arn.)
title_fullStr	Possibilities for obtaining pellets by single-screw extrusion of biomass from black pine (Pinus nigra Arn.)
title_full_unstemmed	Possibilities for obtaining pellets by single-screw extrusion of biomass from black pine (Pinus nigra Arn.)
title_sort	possibilities for obtaining pellets by single-screw extrusion of biomass from black pine (pinus nigra arn.)
publisher	EDP Sciences
publishDate	2021
url	https://doaj.org/article/3951d7082ad44173923003a4a1369459
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Possibilities for obtaining pellets by single-screw extrusion of biomass from black pine (Pinus nigra Arn.)

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