Casca de arroz como agente adsorvente no tratamento de óleo residual

Detalhes bibliográficos
Autor(a) principal: Schneider, Lara Talita
Data de Publicação: 2017
Tipo de documento: Dissertação
Idioma: por
Título da fonte: Biblioteca Digital de Teses e Dissertações do UNIOESTE
Texto Completo: http://tede.unioeste.br/handle/tede/2997
Resumo: The development of technologies that reuse wastes from the agricultural, industrial and urban activities is essential, mainly at the environmental point of view, since high amounts of toxic materials and pollutants are incorrectly disposed on the environment, practice that tends to grow concurrently with the industrial expansion. The waste cooking oil is generated in large volumes in urban centers due to the high consumption of refined oils in food cooking. This is considered as a potential alternative feedstock for biodiesel synthesis, one of the country’s mainly used biofuels. However, the low and inconstant quality of this residual feedstock is one of the barriers for its use at homogeneous alkaline transesterification, route commonly used in the biodiesel production thus requiring pretreatment steps of the waste cooking oil before this process. In this context, the objective of this work was the treatment of waste cooking oil by adsorption process, using the in natura rice husk, biomass from agricultural sector, and actived carbon as adsorbent materials. From an experimental planning of the rotational central composite design, it was searched the best experimental conditions for the waste cooking oil treatment in relation to the temperature, adsorbent mass and agitation speed, thus evaluating the influence of these operational parameters on the reduction of the acidity value and peroxide value, and aiming the simultaneous maximization of analyzed variables at the intervals tested. Using the activated carbon (commercial adsorbent) average reductions of acidity and peroxides of 47 and 29 %, respectively. Observed using the rice husk, the reductions was 40 and 24 % for acidity and peroxides, respectively. In order to minimize process costs, in addition to the use of residual materials, the use of rice husk as an alternative adsorbent in the residual treatment is advantageous, since it is a low cost material, available on a large scale and gave results close to those obtained with the activated carbon.
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spelling Frigo, Elisandro Pireshttp://lattes.cnpq.br/0705452234333290Teleken, Joel Gustavohttp://lattes.cnpq.br/6288735286919040Frigo, Elisandro Pireshttp://lattes.cnpq.br/0705452234333290Scheufele, Fabiano Bisinellahttp://lattes.cnpq.br/4578180806056815Santos, Reginaldo Ferreirahttp://lattes.cnpq.br/8789898338167603http://lattes.cnpq.br/5384889317709622Schneider, Lara Talita2017-09-01T20:08:13Z2017-02-17SCHNEIDER, Lara Talita. Casca de arroz como agente adsorvente no tratamento de óleo residual. 2017. 81 f. Dissertação( Mestrado em Engenharia de Energia na Agricultura) - Universidade Estadual do Oeste do Paraná, Cascavel, 2017.http://tede.unioeste.br/handle/tede/2997The development of technologies that reuse wastes from the agricultural, industrial and urban activities is essential, mainly at the environmental point of view, since high amounts of toxic materials and pollutants are incorrectly disposed on the environment, practice that tends to grow concurrently with the industrial expansion. The waste cooking oil is generated in large volumes in urban centers due to the high consumption of refined oils in food cooking. This is considered as a potential alternative feedstock for biodiesel synthesis, one of the country’s mainly used biofuels. However, the low and inconstant quality of this residual feedstock is one of the barriers for its use at homogeneous alkaline transesterification, route commonly used in the biodiesel production thus requiring pretreatment steps of the waste cooking oil before this process. In this context, the objective of this work was the treatment of waste cooking oil by adsorption process, using the in natura rice husk, biomass from agricultural sector, and actived carbon as adsorbent materials. From an experimental planning of the rotational central composite design, it was searched the best experimental conditions for the waste cooking oil treatment in relation to the temperature, adsorbent mass and agitation speed, thus evaluating the influence of these operational parameters on the reduction of the acidity value and peroxide value, and aiming the simultaneous maximization of analyzed variables at the intervals tested. Using the activated carbon (commercial adsorbent) average reductions of acidity and peroxides of 47 and 29 %, respectively. Observed using the rice husk, the reductions was 40 and 24 % for acidity and peroxides, respectively. In order to minimize process costs, in addition to the use of residual materials, the use of rice husk as an alternative adsorbent in the residual treatment is advantageous, since it is a low cost material, available on a large scale and gave results close to those obtained with the activated carbon.O desenvolvimento de tecnologias que reaproveitem resíduos oriundos das atividades agrícolas, industriais e urbanas é essencial, principalmente do ponto de vista ambiental, uma vez que elevadas quantidades de materiais tóxicos e poluentes são dispostos de maneira incorreta no meio ambiente, prática que tende a crescer concomitantemente à expansão industrial. O óleo residual é gerado em grandes volumes nos centros urbanos em virtude do elevado consumo de óleo refinado na cocção de alimentos. Este é considerado como uma alternativa promissora de matéria-prima para a síntese de biodiesel, um dos principais biocombustíveis do país. Porém, a baixa e inconstante qualidade deste resíduo é um dos entraves para sua utilização na transesterificação homogênea alcalina, rota comumente empregada na produção de biodiesel, fazendo-se necessário a aplicação de pré-tratamento do óleo residual. Neste contexto, o objetivo deste trabalho foi o tratamento de óleo residual por meio do processo de adsorção, empregando a casca de arroz in natura, biomassa advinda do setor agrícola, e o carvão ativado como materiais adsorventes. A partir de um planejamento experimental do tipo delineamento composto central rotacional, buscaram-se as melhores condições experimentais para o tratamento do óleo residual em relação à temperatura, massa de adsorvente e agitação, avaliando a influência desses parâmetros operacionais na redução do índice de acidez e índice de peróxido, objetivando a maximização simultânea das variáveis respostas analisadas, nos intervalos testados. Utilizando o carvão ativado (adsorvente comercial) atingiram-se reduções médias de acidez e peróxidos de 47 e 29 %, respectivamente. Já nos tratamentos com o emprego da casca de arroz, as reduções foram de 40 e 24 % para acidez e peróxidos, respectivamente. Tendo em vista a minimização de custos do processo, além do aproveitamento de materiais de cunho residual, a utilização da casca de arroz como adsorvente alternativo no tratamento residual mostra-se vantajosa, uma vez que é um material de baixo custo, disponível em larga escala e que proporcionou resultados próximos aos obtidos com o carvão ativado.Submitted by Rosangela Silva (rosangela.silva3@unioeste.br) on 2017-09-01T20:08:13Z No. of bitstreams: 2 Lara Talita Schnider.pdf: 2363196 bytes, checksum: a42ab4a15a037ec5a51b66bd1f354f33 (MD5) license_rdf: 0 bytes, checksum: d41d8cd98f00b204e9800998ecf8427e (MD5)Made available in DSpace on 2017-09-01T20:08:13Z (GMT). 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dc.title.por.fl_str_mv Casca de arroz como agente adsorvente no tratamento de óleo residual
dc.title.alternative.eng.fl_str_mv Rice husk as absorbent agent in waste cooking oil treatment
title Casca de arroz como agente adsorvente no tratamento de óleo residual
spellingShingle Casca de arroz como agente adsorvente no tratamento de óleo residual
Schneider, Lara Talita
Biocombustíveis
Adsorção
Adsorvente alternativo
Biofuels
Adsorption
Alternative adsorbent
CIENCIAS AGRARIAS::ENGENHARIA AGRICOLA
title_short Casca de arroz como agente adsorvente no tratamento de óleo residual
title_full Casca de arroz como agente adsorvente no tratamento de óleo residual
title_fullStr Casca de arroz como agente adsorvente no tratamento de óleo residual
title_full_unstemmed Casca de arroz como agente adsorvente no tratamento de óleo residual
title_sort Casca de arroz como agente adsorvente no tratamento de óleo residual
author Schneider, Lara Talita
author_facet Schneider, Lara Talita
author_role author
dc.contributor.advisor1.fl_str_mv Frigo, Elisandro Pires
dc.contributor.advisor1Lattes.fl_str_mv http://lattes.cnpq.br/0705452234333290
dc.contributor.advisor-co1.fl_str_mv Teleken, Joel Gustavo
dc.contributor.advisor-co1Lattes.fl_str_mv http://lattes.cnpq.br/6288735286919040
dc.contributor.referee1.fl_str_mv Frigo, Elisandro Pires
dc.contributor.referee1Lattes.fl_str_mv http://lattes.cnpq.br/0705452234333290
dc.contributor.referee2.fl_str_mv Scheufele, Fabiano Bisinella
dc.contributor.referee2Lattes.fl_str_mv http://lattes.cnpq.br/4578180806056815
dc.contributor.referee3.fl_str_mv Santos, Reginaldo Ferreira
dc.contributor.referee3Lattes.fl_str_mv http://lattes.cnpq.br/8789898338167603
dc.contributor.authorLattes.fl_str_mv http://lattes.cnpq.br/5384889317709622
dc.contributor.author.fl_str_mv Schneider, Lara Talita
contributor_str_mv Frigo, Elisandro Pires
Teleken, Joel Gustavo
Frigo, Elisandro Pires
Scheufele, Fabiano Bisinella
Santos, Reginaldo Ferreira
dc.subject.por.fl_str_mv Biocombustíveis
Adsorção
Adsorvente alternativo
topic Biocombustíveis
Adsorção
Adsorvente alternativo
Biofuels
Adsorption
Alternative adsorbent
CIENCIAS AGRARIAS::ENGENHARIA AGRICOLA
dc.subject.eng.fl_str_mv Biofuels
Adsorption
Alternative adsorbent
dc.subject.cnpq.fl_str_mv CIENCIAS AGRARIAS::ENGENHARIA AGRICOLA
description The development of technologies that reuse wastes from the agricultural, industrial and urban activities is essential, mainly at the environmental point of view, since high amounts of toxic materials and pollutants are incorrectly disposed on the environment, practice that tends to grow concurrently with the industrial expansion. The waste cooking oil is generated in large volumes in urban centers due to the high consumption of refined oils in food cooking. This is considered as a potential alternative feedstock for biodiesel synthesis, one of the country’s mainly used biofuels. However, the low and inconstant quality of this residual feedstock is one of the barriers for its use at homogeneous alkaline transesterification, route commonly used in the biodiesel production thus requiring pretreatment steps of the waste cooking oil before this process. In this context, the objective of this work was the treatment of waste cooking oil by adsorption process, using the in natura rice husk, biomass from agricultural sector, and actived carbon as adsorbent materials. From an experimental planning of the rotational central composite design, it was searched the best experimental conditions for the waste cooking oil treatment in relation to the temperature, adsorbent mass and agitation speed, thus evaluating the influence of these operational parameters on the reduction of the acidity value and peroxide value, and aiming the simultaneous maximization of analyzed variables at the intervals tested. Using the activated carbon (commercial adsorbent) average reductions of acidity and peroxides of 47 and 29 %, respectively. Observed using the rice husk, the reductions was 40 and 24 % for acidity and peroxides, respectively. In order to minimize process costs, in addition to the use of residual materials, the use of rice husk as an alternative adsorbent in the residual treatment is advantageous, since it is a low cost material, available on a large scale and gave results close to those obtained with the activated carbon.
publishDate 2017
dc.date.accessioned.fl_str_mv 2017-09-01T20:08:13Z
dc.date.issued.fl_str_mv 2017-02-17
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dc.identifier.citation.fl_str_mv SCHNEIDER, Lara Talita. Casca de arroz como agente adsorvente no tratamento de óleo residual. 2017. 81 f. Dissertação( Mestrado em Engenharia de Energia na Agricultura) - Universidade Estadual do Oeste do Paraná, Cascavel, 2017.
dc.identifier.uri.fl_str_mv http://tede.unioeste.br/handle/tede/2997
identifier_str_mv SCHNEIDER, Lara Talita. Casca de arroz como agente adsorvente no tratamento de óleo residual. 2017. 81 f. Dissertação( Mestrado em Engenharia de Energia na Agricultura) - Universidade Estadual do Oeste do Paraná, Cascavel, 2017.
url http://tede.unioeste.br/handle/tede/2997
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Cascavel
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dc.publisher.department.fl_str_mv Centro de Ciências Exatas e Tecnológicas
publisher.none.fl_str_mv Universidade Estadual do Oeste do Paraná
Cascavel
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