Produção e caracterização de biochar de palha de cana-de-açúcar (Saccharum sp.)
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Repositório Institucional da UFSCAR |
Texto Completo: | https://repositorio.ufscar.br/handle/ufscar/9192 |
Resumo: | The aim of this work was to study pyrolysis conditions (thermal degradation in a controlled presence of oxygen) for make biochar is a kind the raw-material used was the sugarcane straw (Saccharum sp.), that is an abundant residue in the fields. Pyrolysis techniques were used with fixed time of 3 hours and temperature variations of 200 °C, 250 °C, 300 ° and 400 °C, totalizing four treatments. The Biochar produced was characterized by immediate and thermogravimetric analyses. The obtained results showed the lignocellulosic materials transformation to fixed carbon, and the direct influence of pyrolysis temperature on cellulose and lignin degradation. The fixed carbon content obtained for the treatments carried out were T1 = 42 %, T2 = 51 %, T3 = 59 % and T4 = 65 %. The gravimetric yields were T1 = 55 %, T2 = 36 %, T3 = 30 % and T4 = 25 %. It can be observed the direct influence of the pyrolysis temperature in the cellulose and lignin degradation in the thermogravimetric analyses. Aiming the equilibrium between gravimetric yield and fixed carbon content, can be concluded that the better temperature for the slow pyrolysis, in the conditions developed in this work, was about to 250 °C. |
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Pires, Isis Cristina de Souza AdhmannYamaji, Fábio Minoruhttp://lattes.cnpq.br/47874496349148317df7a1b8-aa4f-4717-a45e-3c361b513d902017-11-10T12:10:29Z2017-11-10T12:10:29Z2017-10-06PIRES, Isis Cristina de Souza Adhmann. Produção e caracterização de biochar de palha de cana-de-açúcar (Saccharum sp.). 2017. Dissertação (Mestrado em Ciência dos Materiais) – Universidade Federal de São Carlos, Sorocaba, 2017. Disponível em: https://repositorio.ufscar.br/handle/ufscar/9192.https://repositorio.ufscar.br/handle/ufscar/9192The aim of this work was to study pyrolysis conditions (thermal degradation in a controlled presence of oxygen) for make biochar is a kind the raw-material used was the sugarcane straw (Saccharum sp.), that is an abundant residue in the fields. Pyrolysis techniques were used with fixed time of 3 hours and temperature variations of 200 °C, 250 °C, 300 ° and 400 °C, totalizing four treatments. The Biochar produced was characterized by immediate and thermogravimetric analyses. The obtained results showed the lignocellulosic materials transformation to fixed carbon, and the direct influence of pyrolysis temperature on cellulose and lignin degradation. The fixed carbon content obtained for the treatments carried out were T1 = 42 %, T2 = 51 %, T3 = 59 % and T4 = 65 %. The gravimetric yields were T1 = 55 %, T2 = 36 %, T3 = 30 % and T4 = 25 %. It can be observed the direct influence of the pyrolysis temperature in the cellulose and lignin degradation in the thermogravimetric analyses. Aiming the equilibrium between gravimetric yield and fixed carbon content, can be concluded that the better temperature for the slow pyrolysis, in the conditions developed in this work, was about to 250 °C.Este estudo buscou condições de pirólise (degradação térmica com presença limitada de oxigênio) para produção de biochar, o que é um carvão vegetal destinado ao emprego como condicionador de solos. A matéria-prima utilizada foi a palha de cana-de-açúcar (Saccharum sp.). Foram realizadas pirólises com tempo fixo de 3h e variação de temperaturas de 200 (T1), 250 (T2), 300 (T3) e 400 (T4), totalizando quatro tratamentos. O biochar produzido foi caracterizado por meio de análise imediata e termogravimétrica. Os teores de carbono fixo encontrados para os tratamentos foram 42% (T1), 51% (T2), 59% (T3) e 65% (T4), e os rendimentos gravimétricos para 55% (T1), 36% (T2), 30% (T3) e 25% (T4). Pode-se observar a influência direta da temperatura de pirólise na degradação da celulose e lignina através das análises termogravimétricas. Almejando o equilíbrio entre rendimento gravimétrico e teor de carbono fixo, pode-se concluir que a melhor temperatura para pirólise, nas condições desenvolvidas neste estudo foi de aproximadamente 250ºC.Não recebi financiamentoporUniversidade Federal de São CarlosCâmpus SorocabaPrograma de Pós-Graduação em Ciência dos Materiais - PPGCM-SoUFSCarBiomassaPiróliseCarbono fixoBiomassPyrolysisFixed carbonCIENCIAS EXATAS E DA TERRAProdução e caracterização de biochar de palha de cana-de-açúcar (Saccharum sp.)Production and characterization of sugarcane straw biochar (Saccharum sp.)info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisOnline6006007f57aa18-8ee1-4413-8074-eea3a109990binfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFSCARinstname:Universidade Federal de São Carlos (UFSCAR)instacron:UFSCARORIGINALVersão Final PDF.pdfVersão Final PDF.pdfapplication/pdf1982326https://repositorio.ufscar.br/bitstream/ufscar/9192/1/Vers%c3%a3o%20Final%20PDF.pdfa60f34a491981fade04b4ea03c368547MD51Carta comprovante de versão final.pdfCarta comprovante de versão final.pdfapplication/pdf284749https://repositorio.ufscar.br/bitstream/ufscar/9192/2/Carta%20comprovante%20de%20vers%c3%a3o%20final.pdf83211b0142332a261bde4324e5f13e16MD52LICENSElicense.txtlicense.txttext/plain; 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dc.title.por.fl_str_mv |
Produção e caracterização de biochar de palha de cana-de-açúcar (Saccharum sp.) |
dc.title.alternative.eng.fl_str_mv |
Production and characterization of sugarcane straw biochar (Saccharum sp.) |
title |
Produção e caracterização de biochar de palha de cana-de-açúcar (Saccharum sp.) |
spellingShingle |
Produção e caracterização de biochar de palha de cana-de-açúcar (Saccharum sp.) Pires, Isis Cristina de Souza Adhmann Biomassa Pirólise Carbono fixo Biomass Pyrolysis Fixed carbon CIENCIAS EXATAS E DA TERRA |
title_short |
Produção e caracterização de biochar de palha de cana-de-açúcar (Saccharum sp.) |
title_full |
Produção e caracterização de biochar de palha de cana-de-açúcar (Saccharum sp.) |
title_fullStr |
Produção e caracterização de biochar de palha de cana-de-açúcar (Saccharum sp.) |
title_full_unstemmed |
Produção e caracterização de biochar de palha de cana-de-açúcar (Saccharum sp.) |
title_sort |
Produção e caracterização de biochar de palha de cana-de-açúcar (Saccharum sp.) |
author |
Pires, Isis Cristina de Souza Adhmann |
author_facet |
Pires, Isis Cristina de Souza Adhmann |
author_role |
author |
dc.contributor.author.fl_str_mv |
Pires, Isis Cristina de Souza Adhmann |
dc.contributor.advisor1.fl_str_mv |
Yamaji, Fábio Minoru |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/4787449634914831 |
dc.contributor.authorID.fl_str_mv |
7df7a1b8-aa4f-4717-a45e-3c361b513d90 |
contributor_str_mv |
Yamaji, Fábio Minoru |
dc.subject.por.fl_str_mv |
Biomassa Pirólise Carbono fixo |
topic |
Biomassa Pirólise Carbono fixo Biomass Pyrolysis Fixed carbon CIENCIAS EXATAS E DA TERRA |
dc.subject.eng.fl_str_mv |
Biomass Pyrolysis Fixed carbon |
dc.subject.cnpq.fl_str_mv |
CIENCIAS EXATAS E DA TERRA |
description |
The aim of this work was to study pyrolysis conditions (thermal degradation in a controlled presence of oxygen) for make biochar is a kind the raw-material used was the sugarcane straw (Saccharum sp.), that is an abundant residue in the fields. Pyrolysis techniques were used with fixed time of 3 hours and temperature variations of 200 °C, 250 °C, 300 ° and 400 °C, totalizing four treatments. The Biochar produced was characterized by immediate and thermogravimetric analyses. The obtained results showed the lignocellulosic materials transformation to fixed carbon, and the direct influence of pyrolysis temperature on cellulose and lignin degradation. The fixed carbon content obtained for the treatments carried out were T1 = 42 %, T2 = 51 %, T3 = 59 % and T4 = 65 %. The gravimetric yields were T1 = 55 %, T2 = 36 %, T3 = 30 % and T4 = 25 %. It can be observed the direct influence of the pyrolysis temperature in the cellulose and lignin degradation in the thermogravimetric analyses. Aiming the equilibrium between gravimetric yield and fixed carbon content, can be concluded that the better temperature for the slow pyrolysis, in the conditions developed in this work, was about to 250 °C. |
publishDate |
2017 |
dc.date.accessioned.fl_str_mv |
2017-11-10T12:10:29Z |
dc.date.available.fl_str_mv |
2017-11-10T12:10:29Z |
dc.date.issued.fl_str_mv |
2017-10-06 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
PIRES, Isis Cristina de Souza Adhmann. Produção e caracterização de biochar de palha de cana-de-açúcar (Saccharum sp.). 2017. Dissertação (Mestrado em Ciência dos Materiais) – Universidade Federal de São Carlos, Sorocaba, 2017. Disponível em: https://repositorio.ufscar.br/handle/ufscar/9192. |
dc.identifier.uri.fl_str_mv |
https://repositorio.ufscar.br/handle/ufscar/9192 |
identifier_str_mv |
PIRES, Isis Cristina de Souza Adhmann. Produção e caracterização de biochar de palha de cana-de-açúcar (Saccharum sp.). 2017. Dissertação (Mestrado em Ciência dos Materiais) – Universidade Federal de São Carlos, Sorocaba, 2017. Disponível em: https://repositorio.ufscar.br/handle/ufscar/9192. |
url |
https://repositorio.ufscar.br/handle/ufscar/9192 |
dc.language.iso.fl_str_mv |
por |
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por |
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7f57aa18-8ee1-4413-8074-eea3a109990b |
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info:eu-repo/semantics/openAccess |
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openAccess |
dc.publisher.none.fl_str_mv |
Universidade Federal de São Carlos Câmpus Sorocaba |
dc.publisher.program.fl_str_mv |
Programa de Pós-Graduação em Ciência dos Materiais - PPGCM-So |
dc.publisher.initials.fl_str_mv |
UFSCar |
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Universidade Federal de São Carlos Câmpus Sorocaba |
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Repositório Institucional da UFSCAR |
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