Produção e caracterização de bio-óleo a partir de resíduo agroindustrial de semente de mangaba
Autor(a) principal: | |
---|---|
Data de Publicação: | 2014 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Repositório Institucional da UFS |
Texto Completo: | https://ri.ufs.br/handle/riufs/6105 |
Resumo: | The aim of this study was to evaluate the potential of Hancornia speciosa (known as mangaba in Brazil) seeds for the production of bio-oil, in order to minimize the pollution problems caused by the inappropriate disposal of this residue and add value to this material which poses an environmental risk. The study was divided into two parts: the characterization of the biomass (through elemental analysis (CHN), infrared spectroscopy (FTIR-ATR), thermogravimetry (TG), and the moisture, ash, protein, oil, fiber, cellulose, hemicellulose and lignin contents); and the characterization of the bio-oil (thermogravimetry, infrared spectroscopy and gas chromatography/mass spectrometry-CG/MS). The mangaba seeds had a moisture content of 7.78±0.03%, high quantities of carbon (58.07%) and oxygen (27.18%), a calorific value of 23.45 MJ kg-1 and contained ash (1.87±0.06%), oil (27.33±0.37%), protein (12.10±1.60%) fiber (11.98±0.46%), cellulose (17.07%), hemicellulose (22.57%) and lignin (10.16%). The thermogravimetric curve for the sample showed a mass loss of around 90% up to a temperature of 450 °C. In the pyrolysis experiments the variables included temperature (450 and 600 °C), sample mass (5 and 11 g) and prior heating (with or without). The best conditions for the bioproduction of the bio-oil were 600 °C, 11 g of seeds and prior heating of the furnace. The characterization of the samples by FTIR allowed the presence of functional groups such as phenols, alcohols, ketones, acids, alkanes, alkenes, amides, nitriles and esters to be identified. The CG/MS analysis confirmed the results obtained with the infrared spectroscopy, with carboxylic acids and hydrocarbonates (~ 90%) being qualitatively identified as the major components, besides the presence of other compounds such as furanes, phenols, nitriles, aldehydes, ketones, alcohols, esters and amides. |
id |
UFS-2_cdc1136bbf289f01b627680bd7d4b4cd |
---|---|
oai_identifier_str |
oai:ufs.br:riufs/6105 |
network_acronym_str |
UFS-2 |
network_name_str |
Repositório Institucional da UFS |
repository_id_str |
|
spelling |
Santos, Roberta Menezeshttp://lattes.cnpq.br/3804524008866585Freitas, Lisiane dos Santoshttp://lattes.cnpq.br/78968670105773462017-09-27T13:57:44Z2017-09-27T13:57:44Z2014-07-31https://ri.ufs.br/handle/riufs/6105The aim of this study was to evaluate the potential of Hancornia speciosa (known as mangaba in Brazil) seeds for the production of bio-oil, in order to minimize the pollution problems caused by the inappropriate disposal of this residue and add value to this material which poses an environmental risk. The study was divided into two parts: the characterization of the biomass (through elemental analysis (CHN), infrared spectroscopy (FTIR-ATR), thermogravimetry (TG), and the moisture, ash, protein, oil, fiber, cellulose, hemicellulose and lignin contents); and the characterization of the bio-oil (thermogravimetry, infrared spectroscopy and gas chromatography/mass spectrometry-CG/MS). The mangaba seeds had a moisture content of 7.78±0.03%, high quantities of carbon (58.07%) and oxygen (27.18%), a calorific value of 23.45 MJ kg-1 and contained ash (1.87±0.06%), oil (27.33±0.37%), protein (12.10±1.60%) fiber (11.98±0.46%), cellulose (17.07%), hemicellulose (22.57%) and lignin (10.16%). The thermogravimetric curve for the sample showed a mass loss of around 90% up to a temperature of 450 °C. In the pyrolysis experiments the variables included temperature (450 and 600 °C), sample mass (5 and 11 g) and prior heating (with or without). The best conditions for the bioproduction of the bio-oil were 600 °C, 11 g of seeds and prior heating of the furnace. The characterization of the samples by FTIR allowed the presence of functional groups such as phenols, alcohols, ketones, acids, alkanes, alkenes, amides, nitriles and esters to be identified. The CG/MS analysis confirmed the results obtained with the infrared spectroscopy, with carboxylic acids and hydrocarbonates (~ 90%) being qualitatively identified as the major components, besides the presence of other compounds such as furanes, phenols, nitriles, aldehydes, ketones, alcohols, esters and amides.O presente trabalho teve como objetivo avaliar o aproveitamento das sementes de mangaba para a produção de bio-óleo, a fim de minimizar problemas de poluição devido à disposição inadequada dos resíduos e agregar valor a este passivo ambiental. O trabalho foi dividido em duas partes: caracterização da biomassa (análise elementar (CHN), espectroscopia de infravermelho (FTIR-ATR), termogravimetria (TG), teor de umidade, cinzas, proteínas, teor de óleo, fibras, celulose, hemicelulose e lignina) e caracterização do bio-óleo (termogravimetria, infravermelho e cromatografia gasosa/espectrometria de massas-GC/MS). As sementes de mangaba apresentaram teor de umidade de 7,78±0,03%, alta quantidade de carbono (58,07%) e oxigênio (27,18%), poder calorífico (23,45 MJ kg-1), teor de cinzas de 1,87±0,06%, teor de óleo 27,33±0,37%, proteínas 12,10±1,60%, fibras 11,98±0,46%, celulose (17,07%), hemicelulose (22,57%) e lignina (10,16%). A curva termogravimétrica da amostra apresentou cerca de 90% de perda de massa até a temperatura de 450 °C. Os experimentos de pirólise incluíram como variável temperatura (450 e 600 °C), massa de amostra (5 e 11 g), com ou sem aquecimento prévio. A melhor condição para a produção de bio-óleo foi a 600 °C, 11g de semente e com aquecimento prévio do forno. Através da caracterização da amostra em FTIR foi possível identificar a presença de grupos funcionais como fenóis, alcoóis, cetonas, ácidos, alcanos, alcenos, amidas, nitrilas e ésteres. Por outro lado, as análises de GC/MS confirmaram os resultados obtidos com o infravermelho, sendo identificados qualitativamente os ácidos carboxílicos e hidrocarbonetos (~ 90%) como componentes majoritários, além de serem encontrados outros compostos como furanos, fenóis, nitrilas, aldeídos, cetonas, alcoóis, ésteres e amidas.application/pdfporQuímica analíticaBiocombustíveisAgroindústriaMangabaSementesPiróliseBio-óleoAgricultural industriesBiomass energyAnalytical chemistryBio-oilCNPQ::CIENCIAS EXATAS E DA TERRA::QUIMICAProdução e caracterização de bio-óleo a partir de resíduo agroindustrial de semente de mangabainfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisPós-Graduação em Químicainfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFSinstname:Universidade Federal de Sergipe (UFS)instacron:UFSORIGINALROBERTA_MENEZES_SANTOS.pdfapplication/pdf2186436https://ri.ufs.br/jspui/bitstream/riufs/6105/1/ROBERTA_MENEZES_SANTOS.pdf7262ff34fb1b19c6e92e2a6c0159c7ccMD51TEXTROBERTA_MENEZES_SANTOS.pdf.txtROBERTA_MENEZES_SANTOS.pdf.txtExtracted texttext/plain129903https://ri.ufs.br/jspui/bitstream/riufs/6105/2/ROBERTA_MENEZES_SANTOS.pdf.txtf67b66d7b7a5f93c3bbf970789c50399MD52THUMBNAILROBERTA_MENEZES_SANTOS.pdf.jpgROBERTA_MENEZES_SANTOS.pdf.jpgGenerated Thumbnailimage/jpeg1361https://ri.ufs.br/jspui/bitstream/riufs/6105/3/ROBERTA_MENEZES_SANTOS.pdf.jpg0ffdfcbd1a7d0bc54fcf870ba5e0ab10MD53riufs/61052018-01-17 20:58:05.375oai:ufs.br:riufs/6105Repositório InstitucionalPUBhttps://ri.ufs.br/oai/requestrepositorio@academico.ufs.bropendoar:2018-01-17T23:58:05Repositório Institucional da UFS - Universidade Federal de Sergipe (UFS)false |
dc.title.por.fl_str_mv |
Produção e caracterização de bio-óleo a partir de resíduo agroindustrial de semente de mangaba |
title |
Produção e caracterização de bio-óleo a partir de resíduo agroindustrial de semente de mangaba |
spellingShingle |
Produção e caracterização de bio-óleo a partir de resíduo agroindustrial de semente de mangaba Santos, Roberta Menezes Química analítica Biocombustíveis Agroindústria Mangaba Sementes Pirólise Bio-óleo Agricultural industries Biomass energy Analytical chemistry Bio-oil CNPQ::CIENCIAS EXATAS E DA TERRA::QUIMICA |
title_short |
Produção e caracterização de bio-óleo a partir de resíduo agroindustrial de semente de mangaba |
title_full |
Produção e caracterização de bio-óleo a partir de resíduo agroindustrial de semente de mangaba |
title_fullStr |
Produção e caracterização de bio-óleo a partir de resíduo agroindustrial de semente de mangaba |
title_full_unstemmed |
Produção e caracterização de bio-óleo a partir de resíduo agroindustrial de semente de mangaba |
title_sort |
Produção e caracterização de bio-óleo a partir de resíduo agroindustrial de semente de mangaba |
author |
Santos, Roberta Menezes |
author_facet |
Santos, Roberta Menezes |
author_role |
author |
dc.contributor.author.fl_str_mv |
Santos, Roberta Menezes |
dc.contributor.advisor1Lattes.fl_str_mv |
http://lattes.cnpq.br/3804524008866585 |
dc.contributor.advisor1.fl_str_mv |
Freitas, Lisiane dos Santos |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/7896867010577346 |
contributor_str_mv |
Freitas, Lisiane dos Santos |
dc.subject.por.fl_str_mv |
Química analítica Biocombustíveis Agroindústria Mangaba Sementes Pirólise Bio-óleo |
topic |
Química analítica Biocombustíveis Agroindústria Mangaba Sementes Pirólise Bio-óleo Agricultural industries Biomass energy Analytical chemistry Bio-oil CNPQ::CIENCIAS EXATAS E DA TERRA::QUIMICA |
dc.subject.eng.fl_str_mv |
Agricultural industries Biomass energy Analytical chemistry Bio-oil |
dc.subject.cnpq.fl_str_mv |
CNPQ::CIENCIAS EXATAS E DA TERRA::QUIMICA |
description |
The aim of this study was to evaluate the potential of Hancornia speciosa (known as mangaba in Brazil) seeds for the production of bio-oil, in order to minimize the pollution problems caused by the inappropriate disposal of this residue and add value to this material which poses an environmental risk. The study was divided into two parts: the characterization of the biomass (through elemental analysis (CHN), infrared spectroscopy (FTIR-ATR), thermogravimetry (TG), and the moisture, ash, protein, oil, fiber, cellulose, hemicellulose and lignin contents); and the characterization of the bio-oil (thermogravimetry, infrared spectroscopy and gas chromatography/mass spectrometry-CG/MS). The mangaba seeds had a moisture content of 7.78±0.03%, high quantities of carbon (58.07%) and oxygen (27.18%), a calorific value of 23.45 MJ kg-1 and contained ash (1.87±0.06%), oil (27.33±0.37%), protein (12.10±1.60%) fiber (11.98±0.46%), cellulose (17.07%), hemicellulose (22.57%) and lignin (10.16%). The thermogravimetric curve for the sample showed a mass loss of around 90% up to a temperature of 450 °C. In the pyrolysis experiments the variables included temperature (450 and 600 °C), sample mass (5 and 11 g) and prior heating (with or without). The best conditions for the bioproduction of the bio-oil were 600 °C, 11 g of seeds and prior heating of the furnace. The characterization of the samples by FTIR allowed the presence of functional groups such as phenols, alcohols, ketones, acids, alkanes, alkenes, amides, nitriles and esters to be identified. The CG/MS analysis confirmed the results obtained with the infrared spectroscopy, with carboxylic acids and hydrocarbonates (~ 90%) being qualitatively identified as the major components, besides the presence of other compounds such as furanes, phenols, nitriles, aldehydes, ketones, alcohols, esters and amides. |
publishDate |
2014 |
dc.date.issued.fl_str_mv |
2014-07-31 |
dc.date.accessioned.fl_str_mv |
2017-09-27T13:57:44Z |
dc.date.available.fl_str_mv |
2017-09-27T13:57:44Z |
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.uri.fl_str_mv |
https://ri.ufs.br/handle/riufs/6105 |
url |
https://ri.ufs.br/handle/riufs/6105 |
dc.language.iso.fl_str_mv |
por |
language |
por |
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.program.fl_str_mv |
Pós-Graduação em Química |
dc.source.none.fl_str_mv |
reponame:Repositório Institucional da UFS instname:Universidade Federal de Sergipe (UFS) instacron:UFS |
instname_str |
Universidade Federal de Sergipe (UFS) |
instacron_str |
UFS |
institution |
UFS |
reponame_str |
Repositório Institucional da UFS |
collection |
Repositório Institucional da UFS |
bitstream.url.fl_str_mv |
https://ri.ufs.br/jspui/bitstream/riufs/6105/1/ROBERTA_MENEZES_SANTOS.pdf https://ri.ufs.br/jspui/bitstream/riufs/6105/2/ROBERTA_MENEZES_SANTOS.pdf.txt https://ri.ufs.br/jspui/bitstream/riufs/6105/3/ROBERTA_MENEZES_SANTOS.pdf.jpg |
bitstream.checksum.fl_str_mv |
7262ff34fb1b19c6e92e2a6c0159c7cc f67b66d7b7a5f93c3bbf970789c50399 0ffdfcbd1a7d0bc54fcf870ba5e0ab10 |
bitstream.checksumAlgorithm.fl_str_mv |
MD5 MD5 MD5 |
repository.name.fl_str_mv |
Repositório Institucional da UFS - Universidade Federal de Sergipe (UFS) |
repository.mail.fl_str_mv |
repositorio@academico.ufs.br |
_version_ |
1802110692916985856 |