Processamento hidrotérmico da casca de aveia em modo semi-contínuo

Detalhes bibliográficos
Ano de defesa: 2023
Autor(a) principal: Dalla Porta, Paula Gabriela lattes
Orientador(a): Castilhos, Fernanda de lattes
Banca de defesa: Ketzer, Felipe, Wancura, João Henrique Cabral
Tipo de documento: Dissertação
Tipo de acesso: Acesso aberto
Idioma: por
Instituição de defesa: Universidade Federal de Santa Maria
Centro de Tecnologia
Programa de Pós-Graduação: Programa de Pós-Graduação em Engenharia Química
Departamento: Engenharia Química
País: Brasil
Palavras-chave em Português:
Casca de aveia
Resíduo
Solvente verde
Processo sinérgico
Energia
Sustentabilidade
Palavras-chave em Inglês:
Oat hulls
Residue
Green solvent
Synergic process
Energy
Sustainability
Área do conhecimento CNPq:
CNPQ::ENGENHARIAS::ENGENHARIA QUIMICA
Link de acesso: http://repositorio.ufsm.br/handle/1/30152
Resumo: Oat husk is a low-cost by product obtained mainly from agro-industrial waste, in this work it was found that this lignocellulose biomass has great potential as a source of renewable, clean and sustainable energy. Subcritical water was used for carbohydrates hydrolysis such as cellulose and hemicelluloses in oat hulls. Therefore, the objective of this study was to obtain fermentable sugars, platform chemicals bio-oil and hydrochar from this biomass by hydrothermal processing. Temperatures of 300 and 330 °C, and solvent/feed ratios of 37.5 and 60.9 g water/g hulls were evaluated on products yield, kinetic profiles and characteristics of bio-oil and hydrochar. The pressure was set at 20 MPa and the reaction time was evaluated up to 30 min. A synergistic conversion of lignocellulose biomass promotes the highest fermentable sugars (4.98 ± 0.48 g / 100 g oat hulls) and platform chemical (5.48 ± 0.06a g / 100 g oat hulls) yields at 300 °C in both solvent/feed ratio (S/F-37.5 and S/F-60.0). The best bio-oil (43.11 ± 5.08 g/100g oat hulls) yield was obtained at 330 °C, also for both solvent/feed ratio. For hydrochar, the evaluated experimental conditions did not affect differences in yield, which was (11.24 ± 2.49 g/100g oat hulls). The hydrochar showed an increase of 1.78 times in HHV (29.70 ± 2.01 MJ/kg), when compared to the value obtained for oat hulls (16.67 ± 0.77 MJ/kg).
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spelling 2023-09-01T14:55:13Z2023-09-01T14:55:13Z2023-06-30http://repositorio.ufsm.br/handle/1/30152Oat husk is a low-cost by product obtained mainly from agro-industrial waste, in this work it was found that this lignocellulose biomass has great potential as a source of renewable, clean and sustainable energy. Subcritical water was used for carbohydrates hydrolysis such as cellulose and hemicelluloses in oat hulls. Therefore, the objective of this study was to obtain fermentable sugars, platform chemicals bio-oil and hydrochar from this biomass by hydrothermal processing. Temperatures of 300 and 330 °C, and solvent/feed ratios of 37.5 and 60.9 g water/g hulls were evaluated on products yield, kinetic profiles and characteristics of bio-oil and hydrochar. The pressure was set at 20 MPa and the reaction time was evaluated up to 30 min. A synergistic conversion of lignocellulose biomass promotes the highest fermentable sugars (4.98 ± 0.48 g / 100 g oat hulls) and platform chemical (5.48 ± 0.06a g / 100 g oat hulls) yields at 300 °C in both solvent/feed ratio (S/F-37.5 and S/F-60.0). The best bio-oil (43.11 ± 5.08 g/100g oat hulls) yield was obtained at 330 °C, also for both solvent/feed ratio. For hydrochar, the evaluated experimental conditions did not affect differences in yield, which was (11.24 ± 2.49 g/100g oat hulls). The hydrochar showed an increase of 1.78 times in HHV (29.70 ± 2.01 MJ/kg), when compared to the value obtained for oat hulls (16.67 ± 0.77 MJ/kg).A casca de aveia é um subproduto de baixo custo obtido principalmente através de resíduos agroindustriais, neste trabalho constatou-se que esta biomassa lignocelulósica possui um grande potencial como fonte de energia renovável, limpa e sustentável. O objetivo deste trabalho foi avaliar o processamento hidrotérmico da casca de aveia para obtenção de açúcares fermentescíveis, plataformas químicas, bio-óleo e hidrocarvão utilizando-se água subcrítica como solvente. As temperaturas de 300 a 330 °C, e razão solvente/alimentação de 37,5 e 60,0 g água/g casca foram avaliadas no rendimento de produtos, perfil cinético e caractersticas do bio-óleo e hidrocarvão. Considerando uma pressão de 20 MPa e 30 min foram avaliadas. A conversão sinérgica da biomassa lignocelulósica promoveu elevados rendimentos de açúcares fermentescíveis (4,98 ± 0,48 g / 100 g casca de aveia) e plataformas químicas (5,48 ± 0,06 g / 100 g casca de aveia) a 300 °C em ambas razões solvente/alimentação (S/F-37,5 e S/F-60,0). O melhor rendimento em bio-óleo (43,11 ± 5,08 g/100g casca de aveia) foi obtido a 330 °C, também para ambas razões solvente/alimentação. Para o hidrocarvão, as condições experimentais avaliadas não afetaram o rendimento, que foi de 11,24 ± 2,49 g/100g casca de aveia. O hidrocarvão apresentou um aumento de 1,78 vezes no poder de queima superior (29,70 ± 2,01 MJ/kg), quando comparado com o valor obtido para a casca de aveia (16,67 ± 0,77MJ/kg).porUniversidade Federal de Santa MariaCentro de TecnologiaPrograma de Pós-Graduação em Engenharia QuímicaUFSMBrasilEngenharia QuímicaAttribution-NonCommercial-NoDerivatives 4.0 Internationalhttp://creativecommons.org/licenses/by-nc-nd/4.0/info:eu-repo/semantics/openAccessCasca de aveiaResíduoSolvente verdeProcesso sinérgicoEnergiaSustentabilidadeOat hullsResidueGreen solventSynergic processEnergySustainabilityCNPQ::ENGENHARIAS::ENGENHARIA QUIMICAProcessamento hidrotérmico da casca de aveia em modo semi-contínuoHydrothermal processing of skin in semi-continuous modeinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisCastilhos, Fernanda dehttp://lattes.cnpq.br/4590978604104577Abaide, Ederson RossiKetzer, FelipeWancura, João Henrique Cabralhttp://lattes.cnpq.br/9414624921819309Dalla Porta, Paula Gabriela300600000006600600600600340e815f-99e3-423d-b9d8-4333d082cb0f2af51898-7c44-4c87-a585-b465b61820f2d0469bfc-d2f1-4772-9826-be5e8f4ff19abb335bb8-48ff-4a96-a1da-7ddf0c43eb6868fe4585-4b22-48b4-9a21-6f13498fb5c4reponame:Manancial - Repositório Digital da UFSMinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMLICENSElicense.txtlicense.txttext/plain; charset=utf-816http://repositorio.ufsm.br/bitstream/1/30152/3/license.txtf8fcb28efb1c8cf0dc096bec902bf4c4MD53CC-LICENSElicense_rdflicense_rdfapplication/rdf+xml; charset=utf-8805http://repositorio.ufsm.br/bitstream/1/30152/2/license_rdf4460e5956bc1d1639be9ae6146a50347MD52ORIGINALDIS_PPGEQ_2023_DALLA_PORTA_PAULA.pdfDIS_PPGEQ_2023_DALLA_PORTA_PAULA.pdfDissertaçãoapplication/pdf2081490http://repositorio.ufsm.br/bitstream/1/30152/1/DIS_PPGEQ_2023_DALLA_PORTA_PAULA.pdfd9bcb4c0ae801f427a3d742070382d2cMD511/301522023-09-01 11:55:13.491oai:repositorio.ufsm.br:1/30152Q3JlYXRpdmUgQ29tbW9ucw==Repositório Institucionalhttp://repositorio.ufsm.br/PUBhttp://repositorio.ufsm.br/oai/requestopendoar:39132023-09-01T14:55:13Manancial - Repositório Digital da UFSM - Universidade Federal de Santa Maria (UFSM)false
dc.title.por.fl_str_mv Processamento hidrotérmico da casca de aveia em modo semi-contínuo
dc.title.alternative.eng.fl_str_mv Hydrothermal processing of skin in semi-continuous mode
title Processamento hidrotérmico da casca de aveia em modo semi-contínuo
spellingShingle Processamento hidrotérmico da casca de aveia em modo semi-contínuo
Dalla Porta, Paula Gabriela
Casca de aveia
Resíduo
Solvente verde
Processo sinérgico
Energia
Sustentabilidade
Oat hulls
Residue
Green solvent
Synergic process
Energy
Sustainability
CNPQ::ENGENHARIAS::ENGENHARIA QUIMICA
title_short Processamento hidrotérmico da casca de aveia em modo semi-contínuo
title_full Processamento hidrotérmico da casca de aveia em modo semi-contínuo
title_fullStr Processamento hidrotérmico da casca de aveia em modo semi-contínuo
title_full_unstemmed Processamento hidrotérmico da casca de aveia em modo semi-contínuo
title_sort Processamento hidrotérmico da casca de aveia em modo semi-contínuo
author Dalla Porta, Paula Gabriela
author_facet Dalla Porta, Paula Gabriela
author_role author
dc.contributor.advisor1.fl_str_mv Castilhos, Fernanda de
dc.contributor.advisor1Lattes.fl_str_mv http://lattes.cnpq.br/4590978604104577
dc.contributor.advisor-co1.fl_str_mv Abaide, Ederson Rossi
dc.contributor.referee1.fl_str_mv Ketzer, Felipe
dc.contributor.referee2.fl_str_mv Wancura, João Henrique Cabral
dc.contributor.authorLattes.fl_str_mv http://lattes.cnpq.br/9414624921819309
dc.contributor.author.fl_str_mv Dalla Porta, Paula Gabriela
contributor_str_mv Castilhos, Fernanda de
Abaide, Ederson Rossi
Ketzer, Felipe
Wancura, João Henrique Cabral
dc.subject.por.fl_str_mv Casca de aveia
Resíduo
Solvente verde
Processo sinérgico
Energia
Sustentabilidade
topic Casca de aveia
Resíduo
Solvente verde
Processo sinérgico
Energia
Sustentabilidade
Oat hulls
Residue
Green solvent
Synergic process
Energy
Sustainability
CNPQ::ENGENHARIAS::ENGENHARIA QUIMICA
dc.subject.eng.fl_str_mv Oat hulls
Residue
Green solvent
Synergic process
Energy
Sustainability
dc.subject.cnpq.fl_str_mv CNPQ::ENGENHARIAS::ENGENHARIA QUIMICA
description Oat husk is a low-cost by product obtained mainly from agro-industrial waste, in this work it was found that this lignocellulose biomass has great potential as a source of renewable, clean and sustainable energy. Subcritical water was used for carbohydrates hydrolysis such as cellulose and hemicelluloses in oat hulls. Therefore, the objective of this study was to obtain fermentable sugars, platform chemicals bio-oil and hydrochar from this biomass by hydrothermal processing. Temperatures of 300 and 330 °C, and solvent/feed ratios of 37.5 and 60.9 g water/g hulls were evaluated on products yield, kinetic profiles and characteristics of bio-oil and hydrochar. The pressure was set at 20 MPa and the reaction time was evaluated up to 30 min. A synergistic conversion of lignocellulose biomass promotes the highest fermentable sugars (4.98 ± 0.48 g / 100 g oat hulls) and platform chemical (5.48 ± 0.06a g / 100 g oat hulls) yields at 300 °C in both solvent/feed ratio (S/F-37.5 and S/F-60.0). The best bio-oil (43.11 ± 5.08 g/100g oat hulls) yield was obtained at 330 °C, also for both solvent/feed ratio. For hydrochar, the evaluated experimental conditions did not affect differences in yield, which was (11.24 ± 2.49 g/100g oat hulls). The hydrochar showed an increase of 1.78 times in HHV (29.70 ± 2.01 MJ/kg), when compared to the value obtained for oat hulls (16.67 ± 0.77 MJ/kg).
publishDate 2023
dc.date.accessioned.fl_str_mv 2023-09-01T14:55:13Z
dc.date.available.fl_str_mv 2023-09-01T14:55:13Z
dc.date.issued.fl_str_mv 2023-06-30
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
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url http://repositorio.ufsm.br/handle/1/30152
dc.language.iso.fl_str_mv por
language por
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dc.relation.confidence.fl_str_mv 600
600
600
600
dc.relation.authority.fl_str_mv 340e815f-99e3-423d-b9d8-4333d082cb0f
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dc.rights.driver.fl_str_mv Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
info:eu-repo/semantics/openAccess
rights_invalid_str_mv Attribution-NonCommercial-NoDerivatives 4.0 International
http://creativecommons.org/licenses/by-nc-nd/4.0/
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Universidade Federal de Santa Maria
Centro de Tecnologia
dc.publisher.program.fl_str_mv Programa de Pós-Graduação em Engenharia Química
dc.publisher.initials.fl_str_mv UFSM
dc.publisher.country.fl_str_mv Brasil
dc.publisher.department.fl_str_mv Engenharia Química
publisher.none.fl_str_mv Universidade Federal de Santa Maria
Centro de Tecnologia
dc.source.none.fl_str_mv reponame:Manancial - Repositório Digital da UFSM
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