Quality of charcoal produced from coffee wood for bioenergy use
Autor(a) principal: | |
---|---|
Data de Publicação: | 2015 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | por |
Título da fonte: | Coffee Science (Online) |
Texto Completo: | https://coffeescience.ufla.br/index.php/Coffeescience/article/view/881 |
Resumo: | The objective of this study was to evaluate the quality of charcoal from Coffea arabica L., for bioenergy purposes, using three existing cultivation systems in the South of Minas Gerais (natural agroforestry, organic and conventional) and two cultivars (Mundo Novo and Catuaí). Univariate and multivariate statistical techniques were used, besides the identification of mineral components for the selection and evaluation of the quality from coffee charcoal. The following properties were quantified in charcoal: apparent relative density, actual relative density, immediate chemical composition (volatiles, ash and fixed carbon), fixed carbon stock, energy densities, porosity, heating values; besides carbonization yields. The charcoal of the cultivar Catuaí, with organic and conventional systems, stood out for steel and energy use, mainly by the higher values of apparent relative density, energy densities, fixed carbon stock and yields in charcoal and in fixed carbon. The effect of cultivar on apparent relative density was responsible for the formation of a similar group between the wood charcoal from organic and conventional systems for cultivar Catuaí. Coffee charcoal from the conventional system showed the best K/Ca ratio. It is therefore best suited to be used as fuel in boilers, gasifiers and other energy conversion systems. |
id |
UFLA-4_62be5cfc19f4040a1f45163382ae21db |
---|---|
oai_identifier_str |
oai:coffeescience.ufla.br:article/881 |
network_acronym_str |
UFLA-4 |
network_name_str |
Coffee Science (Online) |
repository_id_str |
|
spelling |
Quality of charcoal produced from coffee wood for bioenergy useQualidade do carvão vegetal produzido a partir da madeira do cafeeiro, para usobioenergéticoBiomassbiofuelCoffea arabica L.characterizationBiomassabiocombustívelCoffea arabica L.caracterizaçãoThe objective of this study was to evaluate the quality of charcoal from Coffea arabica L., for bioenergy purposes, using three existing cultivation systems in the South of Minas Gerais (natural agroforestry, organic and conventional) and two cultivars (Mundo Novo and Catuaí). Univariate and multivariate statistical techniques were used, besides the identification of mineral components for the selection and evaluation of the quality from coffee charcoal. The following properties were quantified in charcoal: apparent relative density, actual relative density, immediate chemical composition (volatiles, ash and fixed carbon), fixed carbon stock, energy densities, porosity, heating values; besides carbonization yields. The charcoal of the cultivar Catuaí, with organic and conventional systems, stood out for steel and energy use, mainly by the higher values of apparent relative density, energy densities, fixed carbon stock and yields in charcoal and in fixed carbon. The effect of cultivar on apparent relative density was responsible for the formation of a similar group between the wood charcoal from organic and conventional systems for cultivar Catuaí. Coffee charcoal from the conventional system showed the best K/Ca ratio. It is therefore best suited to be used as fuel in boilers, gasifiers and other energy conversion systems.Objetivou-se, neste trabalho, avaliar a qualidade do carvão vegetal de Coffea arabica L. para fins bioenergéticos, utilizando três sistemas de cultivo existentes no Sul de Minas Gerais (natural agroflorestal, orgânico e convencional) e duas cultivares (Mundo Novo e Catuaí). Foram utilizadas as técnicas estatísticas univariada e multivariada, além da identificação dos componentes minerais para seleção e avaliação da qualidade do carvão vegetal do cafeeiro. No carvão vegetal, foram quantificadas as seguintes propriedades: densidade relativa aparente, densidade relativa verdadeira, composição química imediata, estoque de carbono fixo, densidades energéticas, porosidade, poderes caloríficos; além dos rendimentos da carbonização. O carvão vegetal da cultivar Catuaí, dos sistemas orgânico e convencional, destacou-se para o uso siderúrgico e energético, principalmente, pelos maiores valores de densidade relativa aparente, densidades energéticas, estoque em carbono fixo e rendimentos em carvão vegetal e em carbono fixo. O efeito da cultivar, na densidade relativa aparente, foi responsável pela formação de um grupo similar entre o carvão vegetal proveniente da madeira dos sistemas orgânico e convencional, para a cultivar Catuaí. O carvão vegetal do cafeeiro, proveniente do sistema convencional, apresentou a melhor relação K/Ca. Logo, é o mais indicado para ser utilizado como combustível em caldeiras, gaseificadores e demais sistemas de conversão energética.Editora UFLA2015-05-31info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfapplication/zipapplication/zipapplication/zipimage/jpegimage/jpegimage/jpegimage/jpegapplication/mswordhttps://coffeescience.ufla.br/index.php/Coffeescience/article/view/881Coffee Science - ISSN 1984-3909; Vol. 10 No. 2 (2015); 251 - 261Coffee Science; Vol. 10 Núm. 2 (2015); 251 - 261Coffee Science; v. 10 n. 2 (2015); 251 - 2611984-3909reponame:Coffee Science (Online)instname:Universidade Federal de Lavras (UFLA)instacron:UFLAporhttps://coffeescience.ufla.br/index.php/Coffeescience/article/view/881/pdf_176https://coffeescience.ufla.br/index.php/Coffeescience/article/view/881/1424https://coffeescience.ufla.br/index.php/Coffeescience/article/view/881/1425https://coffeescience.ufla.br/index.php/Coffeescience/article/view/881/1426https://coffeescience.ufla.br/index.php/Coffeescience/article/view/881/1427https://coffeescience.ufla.br/index.php/Coffeescience/article/view/881/1428https://coffeescience.ufla.br/index.php/Coffeescience/article/view/881/1429https://coffeescience.ufla.br/index.php/Coffeescience/article/view/881/1430https://coffeescience.ufla.br/index.php/Coffeescience/article/view/881/1431Copyright (c) 2015 Coffee Science - ISSN 1984-3909https://creativecommons.org/info:eu-repo/semantics/openAccessLeite, Edson Rubens da SilvaProtásio, Thiago de PaulaRosado, Sebastião Carlos da SilvaTrugilho, Paulo Fernandode Melo, Isabel Cristina Nogueira Alves2015-06-02T14:28:49Zoai:coffeescience.ufla.br:article/881Revistahttps://coffeescience.ufla.br/index.php/CoffeesciencePUBhttps://coffeescience.ufla.br/index.php/Coffeescience/oaicoffeescience@dag.ufla.br||coffeescience@dag.ufla.br|| alvaro-cozadi@hotmail.com1984-39091809-6875opendoar:2024-05-21T19:53:52.175698Coffee Science (Online) - Universidade Federal de Lavras (UFLA)true |
dc.title.none.fl_str_mv |
Quality of charcoal produced from coffee wood for bioenergy use Qualidade do carvão vegetal produzido a partir da madeira do cafeeiro, para usobioenergético |
title |
Quality of charcoal produced from coffee wood for bioenergy use |
spellingShingle |
Quality of charcoal produced from coffee wood for bioenergy use Leite, Edson Rubens da Silva Biomass biofuel Coffea arabica L. characterization Biomassa biocombustível Coffea arabica L. caracterização |
title_short |
Quality of charcoal produced from coffee wood for bioenergy use |
title_full |
Quality of charcoal produced from coffee wood for bioenergy use |
title_fullStr |
Quality of charcoal produced from coffee wood for bioenergy use |
title_full_unstemmed |
Quality of charcoal produced from coffee wood for bioenergy use |
title_sort |
Quality of charcoal produced from coffee wood for bioenergy use |
author |
Leite, Edson Rubens da Silva |
author_facet |
Leite, Edson Rubens da Silva Protásio, Thiago de Paula Rosado, Sebastião Carlos da Silva Trugilho, Paulo Fernando de Melo, Isabel Cristina Nogueira Alves |
author_role |
author |
author2 |
Protásio, Thiago de Paula Rosado, Sebastião Carlos da Silva Trugilho, Paulo Fernando de Melo, Isabel Cristina Nogueira Alves |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Leite, Edson Rubens da Silva Protásio, Thiago de Paula Rosado, Sebastião Carlos da Silva Trugilho, Paulo Fernando de Melo, Isabel Cristina Nogueira Alves |
dc.subject.por.fl_str_mv |
Biomass biofuel Coffea arabica L. characterization Biomassa biocombustível Coffea arabica L. caracterização |
topic |
Biomass biofuel Coffea arabica L. characterization Biomassa biocombustível Coffea arabica L. caracterização |
description |
The objective of this study was to evaluate the quality of charcoal from Coffea arabica L., for bioenergy purposes, using three existing cultivation systems in the South of Minas Gerais (natural agroforestry, organic and conventional) and two cultivars (Mundo Novo and Catuaí). Univariate and multivariate statistical techniques were used, besides the identification of mineral components for the selection and evaluation of the quality from coffee charcoal. The following properties were quantified in charcoal: apparent relative density, actual relative density, immediate chemical composition (volatiles, ash and fixed carbon), fixed carbon stock, energy densities, porosity, heating values; besides carbonization yields. The charcoal of the cultivar Catuaí, with organic and conventional systems, stood out for steel and energy use, mainly by the higher values of apparent relative density, energy densities, fixed carbon stock and yields in charcoal and in fixed carbon. The effect of cultivar on apparent relative density was responsible for the formation of a similar group between the wood charcoal from organic and conventional systems for cultivar Catuaí. Coffee charcoal from the conventional system showed the best K/Ca ratio. It is therefore best suited to be used as fuel in boilers, gasifiers and other energy conversion systems. |
publishDate |
2015 |
dc.date.none.fl_str_mv |
2015-05-31 |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
https://coffeescience.ufla.br/index.php/Coffeescience/article/view/881 |
url |
https://coffeescience.ufla.br/index.php/Coffeescience/article/view/881 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.none.fl_str_mv |
https://coffeescience.ufla.br/index.php/Coffeescience/article/view/881/pdf_176 https://coffeescience.ufla.br/index.php/Coffeescience/article/view/881/1424 https://coffeescience.ufla.br/index.php/Coffeescience/article/view/881/1425 https://coffeescience.ufla.br/index.php/Coffeescience/article/view/881/1426 https://coffeescience.ufla.br/index.php/Coffeescience/article/view/881/1427 https://coffeescience.ufla.br/index.php/Coffeescience/article/view/881/1428 https://coffeescience.ufla.br/index.php/Coffeescience/article/view/881/1429 https://coffeescience.ufla.br/index.php/Coffeescience/article/view/881/1430 https://coffeescience.ufla.br/index.php/Coffeescience/article/view/881/1431 |
dc.rights.driver.fl_str_mv |
Copyright (c) 2015 Coffee Science - ISSN 1984-3909 https://creativecommons.org/ info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
Copyright (c) 2015 Coffee Science - ISSN 1984-3909 https://creativecommons.org/ |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf application/zip application/zip application/zip image/jpeg image/jpeg image/jpeg image/jpeg application/msword |
dc.publisher.none.fl_str_mv |
Editora UFLA |
publisher.none.fl_str_mv |
Editora UFLA |
dc.source.none.fl_str_mv |
Coffee Science - ISSN 1984-3909; Vol. 10 No. 2 (2015); 251 - 261 Coffee Science; Vol. 10 Núm. 2 (2015); 251 - 261 Coffee Science; v. 10 n. 2 (2015); 251 - 261 1984-3909 reponame:Coffee Science (Online) instname:Universidade Federal de Lavras (UFLA) instacron:UFLA |
instname_str |
Universidade Federal de Lavras (UFLA) |
instacron_str |
UFLA |
institution |
UFLA |
reponame_str |
Coffee Science (Online) |
collection |
Coffee Science (Online) |
repository.name.fl_str_mv |
Coffee Science (Online) - Universidade Federal de Lavras (UFLA) |
repository.mail.fl_str_mv |
coffeescience@dag.ufla.br||coffeescience@dag.ufla.br|| alvaro-cozadi@hotmail.com |
_version_ |
1799874920346288128 |