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Biochars from Post-Production Biomass and Waste from Wood Management: Analysis of Carbonization Products

Waste biomass can be used as an alternative source of energy. However, such use requires prior treatment of the material. This paper describes the physicochemical characteristics of biochar obtained by the thermochemical decomposition of six types of agricultural waste biomass: residues from the pro...

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Autores principales: Kosakowski, Wojciech, Bryszewska, Malgorzata Anita, Dziugan, Piotr
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7663828/
https://www.ncbi.nlm.nih.gov/pubmed/33158296
http://dx.doi.org/10.3390/ma13214971
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author Kosakowski, Wojciech
Bryszewska, Malgorzata Anita
Dziugan, Piotr
author_facet Kosakowski, Wojciech
Bryszewska, Malgorzata Anita
Dziugan, Piotr
author_sort Kosakowski, Wojciech
collection PubMed
description Waste biomass can be used as an alternative source of energy. However, such use requires prior treatment of the material. This paper describes the physicochemical characteristics of biochar obtained by the thermochemical decomposition of six types of agricultural waste biomass: residues from the production of flavored spirits (a pulp of lime, grapefruit and lemon), beetroot pulp, apple pomace, brewer’s spent grain, bark and municipal solid waste (bark, sawdust, off-cuts and wood chips). The biomass conversion process was studied under conditions of limited oxygen access in a reactor. The temperature was raised from 450 to 850 °C over 30 min, followed by a residence time of 60 min. The solid products were characterized in terms of their elemental compositions, mass, energy yield and ash content. The gaseous products from pyrolysis of the biomass were also analyzed and their compositions were characterized by GCMS (Gas Chromatography–Mass Spectrometry). The carbonization process increased the carbon content by, on average, 1.7 times, from an average percentage of 46.09% ± 3.65% for biomass to an average percentage of 74.72% ± 5.36% for biochars. After carbonization, the biochars were found to have a net calorific value of between 27 and 32 MJ/kg, which is comparable or even higher than good-quality coal (eco pea coal 24–26 MJ/kg). The net calorific values show that the volatile products can also be considered as a valuable source of energy.
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spelling pubmed-76638282020-11-14 Biochars from Post-Production Biomass and Waste from Wood Management: Analysis of Carbonization Products Kosakowski, Wojciech Bryszewska, Malgorzata Anita Dziugan, Piotr Materials (Basel) Article Waste biomass can be used as an alternative source of energy. However, such use requires prior treatment of the material. This paper describes the physicochemical characteristics of biochar obtained by the thermochemical decomposition of six types of agricultural waste biomass: residues from the production of flavored spirits (a pulp of lime, grapefruit and lemon), beetroot pulp, apple pomace, brewer’s spent grain, bark and municipal solid waste (bark, sawdust, off-cuts and wood chips). The biomass conversion process was studied under conditions of limited oxygen access in a reactor. The temperature was raised from 450 to 850 °C over 30 min, followed by a residence time of 60 min. The solid products were characterized in terms of their elemental compositions, mass, energy yield and ash content. The gaseous products from pyrolysis of the biomass were also analyzed and their compositions were characterized by GCMS (Gas Chromatography–Mass Spectrometry). The carbonization process increased the carbon content by, on average, 1.7 times, from an average percentage of 46.09% ± 3.65% for biomass to an average percentage of 74.72% ± 5.36% for biochars. After carbonization, the biochars were found to have a net calorific value of between 27 and 32 MJ/kg, which is comparable or even higher than good-quality coal (eco pea coal 24–26 MJ/kg). The net calorific values show that the volatile products can also be considered as a valuable source of energy. MDPI 2020-11-04 /pmc/articles/PMC7663828/ /pubmed/33158296 http://dx.doi.org/10.3390/ma13214971 Text en © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Kosakowski, Wojciech
Bryszewska, Malgorzata Anita
Dziugan, Piotr
Biochars from Post-Production Biomass and Waste from Wood Management: Analysis of Carbonization Products
title Biochars from Post-Production Biomass and Waste from Wood Management: Analysis of Carbonization Products
title_full Biochars from Post-Production Biomass and Waste from Wood Management: Analysis of Carbonization Products
title_fullStr Biochars from Post-Production Biomass and Waste from Wood Management: Analysis of Carbonization Products
title_full_unstemmed Biochars from Post-Production Biomass and Waste from Wood Management: Analysis of Carbonization Products
title_short Biochars from Post-Production Biomass and Waste from Wood Management: Analysis of Carbonization Products
title_sort biochars from post-production biomass and waste from wood management: analysis of carbonization products
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7663828/
https://www.ncbi.nlm.nih.gov/pubmed/33158296
http://dx.doi.org/10.3390/ma13214971
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