Biorrefinaria: investigação de processos físico-químico, fermentativo e térmico para o aproveitamento de serragem de eucalipto
Ano de defesa: | 2009 |
---|---|
Autor(a) principal: | |
Orientador(a): | |
Banca de defesa: | , , , |
Tipo de documento: | Tese |
Tipo de acesso: | Acesso aberto |
Idioma: | por |
Instituição de defesa: |
Universidade Federal de Santa Maria
|
Programa de Pós-Graduação: |
Programa de Pós-Graduação em Química
|
Departamento: |
Química
|
País: |
BR
|
Palavras-chave em Português: | |
Área do conhecimento CNPq: | |
Link de acesso: | http://repositorio.ufsm.br/handle/1/4183 |
Resumo: | With the increasing worldwide concern on the environmental impacts of the intensive use of oil derivatives, renewed and continuous efforts have been made to develop alternative technologies for the use of renewable resources in order to produce fuels as well as chemical and petrochemical derivatives. In this study, the use of different technologies applied in biorefinaries (thermal, physical-chemical and biotechnological processes) in a bench scale for a better utilization of forestry waste from eucalyptus sawdust was investigated. Since the pyrolytic thermal process has already been developed, we focused on the separation (liquid-liquid extraction) and the quantification processes (GC-MS) of compounds of the fine chemistry present in the bio-oil from pyrolysys. Results confirm the good performance of the separation and quantification techniques proposed. In addition to the characteristics of the oily fraction, the adsorption capacity of the pyrolytic coal through the measures of BET surface area, the interpretation of isotherms of Langmuir and Freundlich, iodine number index, and scanning electron microscopy (SEM) was investigated. Samples of solid waste, activated with the steam system built by hand, present adsorbent properties similar to the commerciallyproduced active coal. In the application of the physical-chemical process, the acid hydrolysis process was developed under pressure in Teflon containers for the generation of glucose and levulinic acid, which were quantified by PAP glucose and LC-MS/MS assays, respectively. Production, temperature and time parameters were adjusted (optimized) using the methodology of response surface. The resulting hydrolyzate, which showed low levels of glucose, did not offer support for the production of bioethanol; however, it may be an important source of levulinic acid. The solid residue obtained at this stage, characterized as lignin by infrared spectroscopy, showed a higher percentage of marketable lignols in the oily fraction obtained by pyrolysis when compared to bio-oil obtained directly from the sawdust. In the biotechnological process, the hydrolyzed sawdust extract was sent to fermentation with Candida guilhermondii for xylitol production, which is a saccharide with wide industrial application. Findings, based on the methodology of response surface, show a significant influence of time on the fermentation process developed. The maximum content of sugar determined by LC-MS/MS was achieved at mean temperatures. The processes developed were in general effective in the use of forest waste eucalyptus sawdust. Our results are a small contribution to the research of converting biomass and its waste materials in clean fuels, renewable inputs, and green products for the fine chemical, petrochemical, and pharmaceutical industries according to the precepts of biorefineries. |
id |
UFSM_83923fc4e346f42a140381904eb008e9 |
---|---|
oai_identifier_str |
oai:repositorio.ufsm.br:1/4183 |
network_acronym_str |
UFSM |
network_name_str |
Biblioteca Digital de Teses e Dissertações do UFSM |
repository_id_str |
|
spelling |
2017-05-102017-05-102009-09-14CARDOSO, André de Lima. Biorefinery: investigation of physical-chemical, fermentative, and thermal processes for the development of eucaliptus sawdust. 2009. 110 f. Tese (Doutorado em Química) - Universidade Federal de Santa Maria, Santa Maria, 2009.http://repositorio.ufsm.br/handle/1/4183With the increasing worldwide concern on the environmental impacts of the intensive use of oil derivatives, renewed and continuous efforts have been made to develop alternative technologies for the use of renewable resources in order to produce fuels as well as chemical and petrochemical derivatives. In this study, the use of different technologies applied in biorefinaries (thermal, physical-chemical and biotechnological processes) in a bench scale for a better utilization of forestry waste from eucalyptus sawdust was investigated. Since the pyrolytic thermal process has already been developed, we focused on the separation (liquid-liquid extraction) and the quantification processes (GC-MS) of compounds of the fine chemistry present in the bio-oil from pyrolysys. Results confirm the good performance of the separation and quantification techniques proposed. In addition to the characteristics of the oily fraction, the adsorption capacity of the pyrolytic coal through the measures of BET surface area, the interpretation of isotherms of Langmuir and Freundlich, iodine number index, and scanning electron microscopy (SEM) was investigated. Samples of solid waste, activated with the steam system built by hand, present adsorbent properties similar to the commerciallyproduced active coal. In the application of the physical-chemical process, the acid hydrolysis process was developed under pressure in Teflon containers for the generation of glucose and levulinic acid, which were quantified by PAP glucose and LC-MS/MS assays, respectively. Production, temperature and time parameters were adjusted (optimized) using the methodology of response surface. The resulting hydrolyzate, which showed low levels of glucose, did not offer support for the production of bioethanol; however, it may be an important source of levulinic acid. The solid residue obtained at this stage, characterized as lignin by infrared spectroscopy, showed a higher percentage of marketable lignols in the oily fraction obtained by pyrolysis when compared to bio-oil obtained directly from the sawdust. In the biotechnological process, the hydrolyzed sawdust extract was sent to fermentation with Candida guilhermondii for xylitol production, which is a saccharide with wide industrial application. Findings, based on the methodology of response surface, show a significant influence of time on the fermentation process developed. The maximum content of sugar determined by LC-MS/MS was achieved at mean temperatures. The processes developed were in general effective in the use of forest waste eucalyptus sawdust. Our results are a small contribution to the research of converting biomass and its waste materials in clean fuels, renewable inputs, and green products for the fine chemical, petrochemical, and pharmaceutical industries according to the precepts of biorefineries.Com a crescente preocupação mundial em equacionar os impactos ambientais decorrentes do uso intensivo de derivados do petróleo, contínuos e renovados esforços têm sido feitos para o desenvolvimento de tecnologias alternativas, para o aproveitamento de recursos renováveis, na produção de combustíveis e derivados químico-petroquímicos. No presente trabalho, investigou-se o uso de tecnologias aplicadas em biorrefinarias (processos térmicos, físico-químicos e biotecnológicos), em escala de bancada, para o melhor aproveitamento do resíduo florestal serragem de eucalipto. Com o processo térmico pirolítico, já desenvolvido, os estudos foram dirigidos para processos de separação, por extração líquido-líquido, e posterior quantificação, por GC-MS, de compostos da química fina, presentes no bio-óleo de pirólise. Os resultados alcançados confirmam o bom desempenho das técnicas de separação e quantificação propostas. Além das características da fração oleosa investigou-se também a capacidade de adsorção do carvão pirolítico através de medidas da área superficial BET, interpretação de isotermas de Freundlich e Langmuir, além do índice de iodo e de microscopia eletrônica de varredura (MEV). Amostras do resíduo sólido, ativadas com vapor em sistema construído artesanalmente, apresentaram propriedades adsorventes similares às de carvão ativo comercial. Na aplicação de processo físico-químico desenvolveu-se processo de hidrólise ácida, sob pressão, em vaso de teflon, para a geração de glicose e ácido levulínico, que foram quantificados por meio de ensaios PAP Glicose e determinação por LCMS/MS, respectivamente. Os parâmetros de produção, temperatura e tempo, foram ajustados (otimizados) por meio de metodologia de superfície de resposta. Com baixo teor de glicose, o hidrolisado resultante não oferece é adequado para a produção de bioetanol, porém, pode constituir uma fonte de ácido levulínico. O resíduo sólido obtido, nesta etapa, confirmado como lignina por meio de espectroscopia no infravermelho, apresentou maior percentual de lignóis comercializáveis na fração oleosa obtida por pirólise, quando comparado ao bio-óleo obtido diretamente de serragem. No processo biotecnológico, nova fronteira na pesquisa em biorrefinarias, submeteu-se o extrato hidrolisado de serragem à fermentação com leveduras do gênero Candida guilhermondii para a produção de xilitol, sacarídeo de grande aplicação industrial. Pelo exame dos resultados segundo a metodologia de superfície de resposta é flagrante a influência do tempo sobre o processo fermentativo desenvolvido. O máximo teor deste açúcar, determinado por LC-MS/MS, foi alcançado em temperaturas medianas. Os processos desenvolvidos, de maneira geral, mostraram-se eficientes no aproveitamento do resíduo florestal serragem de eucalipto. Os resultados obtidos constituem uma pequena contribuição para a pesquisa na área da conversão da biomassa e seus resíduos, em combustíveis limpos, insumos renováveis e produtos verdes para a química fina, petroquímica e farmacêutica segundo o conceito de biorrefinaria.application/pdfporUniversidade Federal de Santa MariaPrograma de Pós-Graduação em QuímicaUFSMBRQuímicaSerragem de eucaliptoBiorrefinariaCNPQ::CIENCIAS EXATAS E DA TERRA::QUIMICABiorrefinaria: investigação de processos físico-químico, fermentativo e térmico para o aproveitamento de serragem de eucaliptoBiorefinery: investigation of physical-chemical, fermentative, and thermal processes for the development of eucaliptus sawdustinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisMartins, Ayrton Figueiredohttp://lattes.cnpq.br/2113532494494821Piazza, José Luizhttp://lattes.cnpq.br/4693215533157561Alves, Sydney Hartzhttp://lattes.cnpq.br/0330782478769631Villetti, Marcos Antoniohttp://lattes.cnpq.br/8504489050993642Silveira, Djalma Dias dahttp://lattes.cnpq.br/1988016337388120http://lattes.cnpq.br/3349881062158284Cardoso, André de Lima100600000000400300300300300500300ade6000d-a348-4d49-a531-6500a65a153a139948a7-8494-4ee1-8d5a-44b04de52275354252bb-d1ef-4aa9-973c-a542aae1a404d222d3db-5dc1-4604-ac47-2d6968c2c4778437eadf-3a57-4c40-ac38-2583cb529b981d10f223-b535-45ff-8490-d14ce7be9b15info:eu-repo/semantics/openAccessreponame:Biblioteca Digital de Teses e Dissertações do UFSMinstname:Universidade Federal de Santa Maria (UFSM)instacron:UFSMORIGINALCARDOSO, ANDRE DE LIMA.pdfapplication/pdf2926805http://repositorio.ufsm.br/bitstream/1/4183/1/CARDOSO%2c%20ANDRE%20DE%20LIMA.pdf3f924e20be7d71608351620a2ceed424MD51TEXTCARDOSO, ANDRE DE LIMA.pdf.txtCARDOSO, ANDRE DE LIMA.pdf.txtExtracted texttext/plain179850http://repositorio.ufsm.br/bitstream/1/4183/2/CARDOSO%2c%20ANDRE%20DE%20LIMA.pdf.txtc9859580bf040a1ac771a048ba87ad6eMD52THUMBNAILCARDOSO, ANDRE DE LIMA.pdf.jpgCARDOSO, ANDRE DE LIMA.pdf.jpgIM Thumbnailimage/jpeg6075http://repositorio.ufsm.br/bitstream/1/4183/3/CARDOSO%2c%20ANDRE%20DE%20LIMA.pdf.jpg52138abdfc114abe4b6ac896baa33e14MD531/41832023-04-19 09:00:29.334oai:repositorio.ufsm.br:1/4183Biblioteca Digital de Teses e Dissertaçõeshttps://repositorio.ufsm.br/ONGhttps://repositorio.ufsm.br/oai/requestatendimento.sib@ufsm.br||tedebc@gmail.comopendoar:2023-04-19T12:00:29Biblioteca Digital de Teses e Dissertações do UFSM - Universidade Federal de Santa Maria (UFSM)false |
dc.title.por.fl_str_mv |
Biorrefinaria: investigação de processos físico-químico, fermentativo e térmico para o aproveitamento de serragem de eucalipto |
dc.title.alternative.eng.fl_str_mv |
Biorefinery: investigation of physical-chemical, fermentative, and thermal processes for the development of eucaliptus sawdust |
title |
Biorrefinaria: investigação de processos físico-químico, fermentativo e térmico para o aproveitamento de serragem de eucalipto |
spellingShingle |
Biorrefinaria: investigação de processos físico-químico, fermentativo e térmico para o aproveitamento de serragem de eucalipto Cardoso, André de Lima Serragem de eucalipto Biorrefinaria CNPQ::CIENCIAS EXATAS E DA TERRA::QUIMICA |
title_short |
Biorrefinaria: investigação de processos físico-químico, fermentativo e térmico para o aproveitamento de serragem de eucalipto |
title_full |
Biorrefinaria: investigação de processos físico-químico, fermentativo e térmico para o aproveitamento de serragem de eucalipto |
title_fullStr |
Biorrefinaria: investigação de processos físico-químico, fermentativo e térmico para o aproveitamento de serragem de eucalipto |
title_full_unstemmed |
Biorrefinaria: investigação de processos físico-químico, fermentativo e térmico para o aproveitamento de serragem de eucalipto |
title_sort |
Biorrefinaria: investigação de processos físico-químico, fermentativo e térmico para o aproveitamento de serragem de eucalipto |
author |
Cardoso, André de Lima |
author_facet |
Cardoso, André de Lima |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Martins, Ayrton Figueiredo |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/2113532494494821 |
dc.contributor.referee1.fl_str_mv |
Piazza, José Luiz |
dc.contributor.referee1Lattes.fl_str_mv |
http://lattes.cnpq.br/4693215533157561 |
dc.contributor.referee2.fl_str_mv |
Alves, Sydney Hartz |
dc.contributor.referee2Lattes.fl_str_mv |
http://lattes.cnpq.br/0330782478769631 |
dc.contributor.referee3.fl_str_mv |
Villetti, Marcos Antonio |
dc.contributor.referee3Lattes.fl_str_mv |
http://lattes.cnpq.br/8504489050993642 |
dc.contributor.referee4.fl_str_mv |
Silveira, Djalma Dias da |
dc.contributor.referee4Lattes.fl_str_mv |
http://lattes.cnpq.br/1988016337388120 |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/3349881062158284 |
dc.contributor.author.fl_str_mv |
Cardoso, André de Lima |
contributor_str_mv |
Martins, Ayrton Figueiredo Piazza, José Luiz Alves, Sydney Hartz Villetti, Marcos Antonio Silveira, Djalma Dias da |
dc.subject.por.fl_str_mv |
Serragem de eucalipto Biorrefinaria |
topic |
Serragem de eucalipto Biorrefinaria CNPQ::CIENCIAS EXATAS E DA TERRA::QUIMICA |
dc.subject.cnpq.fl_str_mv |
CNPQ::CIENCIAS EXATAS E DA TERRA::QUIMICA |
description |
With the increasing worldwide concern on the environmental impacts of the intensive use of oil derivatives, renewed and continuous efforts have been made to develop alternative technologies for the use of renewable resources in order to produce fuels as well as chemical and petrochemical derivatives. In this study, the use of different technologies applied in biorefinaries (thermal, physical-chemical and biotechnological processes) in a bench scale for a better utilization of forestry waste from eucalyptus sawdust was investigated. Since the pyrolytic thermal process has already been developed, we focused on the separation (liquid-liquid extraction) and the quantification processes (GC-MS) of compounds of the fine chemistry present in the bio-oil from pyrolysys. Results confirm the good performance of the separation and quantification techniques proposed. In addition to the characteristics of the oily fraction, the adsorption capacity of the pyrolytic coal through the measures of BET surface area, the interpretation of isotherms of Langmuir and Freundlich, iodine number index, and scanning electron microscopy (SEM) was investigated. Samples of solid waste, activated with the steam system built by hand, present adsorbent properties similar to the commerciallyproduced active coal. In the application of the physical-chemical process, the acid hydrolysis process was developed under pressure in Teflon containers for the generation of glucose and levulinic acid, which were quantified by PAP glucose and LC-MS/MS assays, respectively. Production, temperature and time parameters were adjusted (optimized) using the methodology of response surface. The resulting hydrolyzate, which showed low levels of glucose, did not offer support for the production of bioethanol; however, it may be an important source of levulinic acid. The solid residue obtained at this stage, characterized as lignin by infrared spectroscopy, showed a higher percentage of marketable lignols in the oily fraction obtained by pyrolysis when compared to bio-oil obtained directly from the sawdust. In the biotechnological process, the hydrolyzed sawdust extract was sent to fermentation with Candida guilhermondii for xylitol production, which is a saccharide with wide industrial application. Findings, based on the methodology of response surface, show a significant influence of time on the fermentation process developed. The maximum content of sugar determined by LC-MS/MS was achieved at mean temperatures. The processes developed were in general effective in the use of forest waste eucalyptus sawdust. Our results are a small contribution to the research of converting biomass and its waste materials in clean fuels, renewable inputs, and green products for the fine chemical, petrochemical, and pharmaceutical industries according to the precepts of biorefineries. |
publishDate |
2009 |
dc.date.issued.fl_str_mv |
2009-09-14 |
dc.date.accessioned.fl_str_mv |
2017-05-10 |
dc.date.available.fl_str_mv |
2017-05-10 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/doctoralThesis |
format |
doctoralThesis |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
CARDOSO, André de Lima. Biorefinery: investigation of physical-chemical, fermentative, and thermal processes for the development of eucaliptus sawdust. 2009. 110 f. Tese (Doutorado em Química) - Universidade Federal de Santa Maria, Santa Maria, 2009. |
dc.identifier.uri.fl_str_mv |
http://repositorio.ufsm.br/handle/1/4183 |
identifier_str_mv |
CARDOSO, André de Lima. Biorefinery: investigation of physical-chemical, fermentative, and thermal processes for the development of eucaliptus sawdust. 2009. 110 f. Tese (Doutorado em Química) - Universidade Federal de Santa Maria, Santa Maria, 2009. |
url |
http://repositorio.ufsm.br/handle/1/4183 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.relation.cnpq.fl_str_mv |
100600000000 |
dc.relation.confidence.fl_str_mv |
400 300 300 300 300 500 300 |
dc.relation.authority.fl_str_mv |
ade6000d-a348-4d49-a531-6500a65a153a 139948a7-8494-4ee1-8d5a-44b04de52275 354252bb-d1ef-4aa9-973c-a542aae1a404 d222d3db-5dc1-4604-ac47-2d6968c2c477 8437eadf-3a57-4c40-ac38-2583cb529b98 1d10f223-b535-45ff-8490-d14ce7be9b15 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal de Santa Maria |
dc.publisher.program.fl_str_mv |
Programa de Pós-Graduação em Química |
dc.publisher.initials.fl_str_mv |
UFSM |
dc.publisher.country.fl_str_mv |
BR |
dc.publisher.department.fl_str_mv |
Química |
publisher.none.fl_str_mv |
Universidade Federal de Santa Maria |
dc.source.none.fl_str_mv |
reponame:Biblioteca Digital de Teses e Dissertações do UFSM instname:Universidade Federal de Santa Maria (UFSM) instacron:UFSM |
instname_str |
Universidade Federal de Santa Maria (UFSM) |
instacron_str |
UFSM |
institution |
UFSM |
reponame_str |
Biblioteca Digital de Teses e Dissertações do UFSM |
collection |
Biblioteca Digital de Teses e Dissertações do UFSM |
bitstream.url.fl_str_mv |
http://repositorio.ufsm.br/bitstream/1/4183/1/CARDOSO%2c%20ANDRE%20DE%20LIMA.pdf http://repositorio.ufsm.br/bitstream/1/4183/2/CARDOSO%2c%20ANDRE%20DE%20LIMA.pdf.txt http://repositorio.ufsm.br/bitstream/1/4183/3/CARDOSO%2c%20ANDRE%20DE%20LIMA.pdf.jpg |
bitstream.checksum.fl_str_mv |
3f924e20be7d71608351620a2ceed424 c9859580bf040a1ac771a048ba87ad6e 52138abdfc114abe4b6ac896baa33e14 |
bitstream.checksumAlgorithm.fl_str_mv |
MD5 MD5 MD5 |
repository.name.fl_str_mv |
Biblioteca Digital de Teses e Dissertações do UFSM - Universidade Federal de Santa Maria (UFSM) |
repository.mail.fl_str_mv |
atendimento.sib@ufsm.br||tedebc@gmail.com |
_version_ |
1793240154625802240 |