Transesterification of rapeseed oil with methanol in the presence of various co-solvents

Detalhes bibliográficos
Autor(a) principal: Pardal, Ana Cristina
Data de Publicação: 2010
Outros Autores: Encinar, J.M., González, J.F., Martínez, G.
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://comum.rcaap.pt/handle/123456789/1297
http://hdl.handle.net/20.500.12207/330
Resumo: In this study, transesterification of rapeseed oil using various co-solvents(diethyl ether (DEE), dibutyl ether (diBE), tert-butyl methyl ether (tBME), diisopropyl ether (diIPE), tetrahydrofuran (THF), and acetone) was studied. The variables affecting the ester yield during transesterification reaction, such as catalyst content, methanol:oil molar ratio, methanol:cosolvent molar ratio, co-solvent type, catalysts type, agitation rate and reaction temperature were investigated. The process was monitored by gas chromatography, determining the concentration of the methyl esters. Biodiesel was characterized according to ISO norms. Among the studied co-solvents, the DEE and tBME take to the best results, however diIPE, diBE and acetone hardly improve the obtained results using only methanol. Within the range of studied variability, the rest of variables do not exercise a very significant influence. The best results are obtained with 0.7 % of KOH, a molar ratio methanol/oil of 9:1, a molar ratio co-solvent/methanol 1:1, an agitation rate of 700 rpm and a temperature of 30 ºC
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spelling Transesterification of rapeseed oil with methanol in the presence of various co-solventsTransesterificationRapeseed oilCo-solventsIn this study, transesterification of rapeseed oil using various co-solvents(diethyl ether (DEE), dibutyl ether (diBE), tert-butyl methyl ether (tBME), diisopropyl ether (diIPE), tetrahydrofuran (THF), and acetone) was studied. The variables affecting the ester yield during transesterification reaction, such as catalyst content, methanol:oil molar ratio, methanol:cosolvent molar ratio, co-solvent type, catalysts type, agitation rate and reaction temperature were investigated. The process was monitored by gas chromatography, determining the concentration of the methyl esters. Biodiesel was characterized according to ISO norms. Among the studied co-solvents, the DEE and tBME take to the best results, however diIPE, diBE and acetone hardly improve the obtained results using only methanol. Within the range of studied variability, the rest of variables do not exercise a very significant influence. The best results are obtained with 0.7 % of KOH, a molar ratio methanol/oil of 9:1, a molar ratio co-solvent/methanol 1:1, an agitation rate of 700 rpm and a temperature of 30 ºC2011-09-26T09:11:52Z2010-11-01T00:00:00Z2010-11conference objectinfo:eu-repo/semantics/publishedVersionapplication/pdfhttp://comum.rcaap.pt/handle/123456789/1297http://hdl.handle.net/20.500.12207/330engPardal, Ana CristinaEncinar, J.M.González, J.F.Martínez, G.info:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-06-20T09:31:32Zoai:repositorio.ipbeja.pt:20.500.12207/330Portal AgregadorONGhttps://www.rcaap.pt/oai/openairemluisa.alvim@gmail.comopendoar:71602024-06-20T09:31:32Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Transesterification of rapeseed oil with methanol in the presence of various co-solvents
title Transesterification of rapeseed oil with methanol in the presence of various co-solvents
spellingShingle Transesterification of rapeseed oil with methanol in the presence of various co-solvents
Pardal, Ana Cristina
Transesterification
Rapeseed oil
Co-solvents
title_short Transesterification of rapeseed oil with methanol in the presence of various co-solvents
title_full Transesterification of rapeseed oil with methanol in the presence of various co-solvents
title_fullStr Transesterification of rapeseed oil with methanol in the presence of various co-solvents
title_full_unstemmed Transesterification of rapeseed oil with methanol in the presence of various co-solvents
title_sort Transesterification of rapeseed oil with methanol in the presence of various co-solvents
author Pardal, Ana Cristina
author_facet Pardal, Ana Cristina
Encinar, J.M.
González, J.F.
Martínez, G.
author_role author
author2 Encinar, J.M.
González, J.F.
Martínez, G.
author2_role author
author
author
dc.contributor.author.fl_str_mv Pardal, Ana Cristina
Encinar, J.M.
González, J.F.
Martínez, G.
dc.subject.por.fl_str_mv Transesterification
Rapeseed oil
Co-solvents
topic Transesterification
Rapeseed oil
Co-solvents
description In this study, transesterification of rapeseed oil using various co-solvents(diethyl ether (DEE), dibutyl ether (diBE), tert-butyl methyl ether (tBME), diisopropyl ether (diIPE), tetrahydrofuran (THF), and acetone) was studied. The variables affecting the ester yield during transesterification reaction, such as catalyst content, methanol:oil molar ratio, methanol:cosolvent molar ratio, co-solvent type, catalysts type, agitation rate and reaction temperature were investigated. The process was monitored by gas chromatography, determining the concentration of the methyl esters. Biodiesel was characterized according to ISO norms. Among the studied co-solvents, the DEE and tBME take to the best results, however diIPE, diBE and acetone hardly improve the obtained results using only methanol. Within the range of studied variability, the rest of variables do not exercise a very significant influence. The best results are obtained with 0.7 % of KOH, a molar ratio methanol/oil of 9:1, a molar ratio co-solvent/methanol 1:1, an agitation rate of 700 rpm and a temperature of 30 ºC
publishDate 2010
dc.date.none.fl_str_mv 2010-11-01T00:00:00Z
2010-11
2011-09-26T09:11:52Z
dc.type.driver.fl_str_mv conference object
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://comum.rcaap.pt/handle/123456789/1297
http://hdl.handle.net/20.500.12207/330
url http://comum.rcaap.pt/handle/123456789/1297
http://hdl.handle.net/20.500.12207/330
dc.language.iso.fl_str_mv eng
language eng
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instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron:RCAAP
instname_str Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
instacron_str RCAAP
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reponame_str Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
collection Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
repository.name.fl_str_mv Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
repository.mail.fl_str_mv mluisa.alvim@gmail.com
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