Depression of the cloud point of biodiesel by reaction over solid acids

Autores
Yori, Juan Carlos; D'amato, Miguel Angel; Grau, Javier Mario; Pieck, Carlos Luis; Vera, Carlos Roman
Año de publicación
2006
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Biodiesel obtained by transesterification of soy oil with methanol was isomerized in the liquid phase at 125-275 °C using solid acid catalysts. The purpose of this work was to improve the cold flow properties of biodiesel by inhibiting the formation of crystals. Crystallization was analyzed by means of the measurement of the cloud point of the fuel. Tested catalysts were SO4 2-- ZrO2 and H-mordenite. At a temperature of reaction (Tr) lower than 125 °C, the catalytic activity was negligible. At Tr > 200 °C, the reaction rate was greatly accelerated, but the cetane number was also decreased and the amount of coke deposits was greatly increased. While reacting biodiesel at 150-200 °C, a small decrease (4-6.5 °C) of the cloud point was obtained without a meaningful decrease of the cetane index. Best results were obtained with SO4 2--ZrO2 at 125 °C. Isomerization had both positive and negative effects on fuel properties: it reduced the cloud point but also increased the viscosity and decreased the cetane index. Due to the different reactivity between the saturated fraction (estearates, palmitates) and the unsaturated one (linoleates, linolenoates, oleates), an adequate control of the degree of isomerization was only possible by performing a previous fractionation step. A good combination was obtained by reacting the saturates rich fraction at 200 °C over H-mordenite and the unsaturated rich fraction at 150 °C over SO4 2-- ZrO2. The fuel obtained by mixing both reacted fractions had a cetane index of 49.5 and a cloud point of -2 °C. However, this combined approach yields only a little benefit compared to those obtained with the single reaction over SO4 2--ZrO2 at 125 °C.
Fil: Yori, Juan Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina
Fil: D'amato, Miguel Angel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina
Fil: Grau, Javier Mario. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina
Fil: Pieck, Carlos Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina
Fil: Vera, Carlos Roman. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina
Materia
Depression Of the Cloud Point
Biodiesel
Reaction Over Acid Solids
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/78030
Acceder
id CONICETDig_0e4ed14009543eaac1cdacd35c049ba9
oai_identifier_str oai:ri.conicet.gov.ar:11336/78030
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Depression of the cloud point of biodiesel by reaction over solid acidsYori, Juan CarlosD'amato, Miguel AngelGrau, Javier MarioPieck, Carlos LuisVera, Carlos RomanDepression Of the Cloud PointBiodieselReaction Over Acid Solidshttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2Biodiesel obtained by transesterification of soy oil with methanol was isomerized in the liquid phase at 125-275 °C using solid acid catalysts. The purpose of this work was to improve the cold flow properties of biodiesel by inhibiting the formation of crystals. Crystallization was analyzed by means of the measurement of the cloud point of the fuel. Tested catalysts were SO4 2-- ZrO2 and H-mordenite. At a temperature of reaction (Tr) lower than 125 °C, the catalytic activity was negligible. At Tr > 200 °C, the reaction rate was greatly accelerated, but the cetane number was also decreased and the amount of coke deposits was greatly increased. While reacting biodiesel at 150-200 °C, a small decrease (4-6.5 °C) of the cloud point was obtained without a meaningful decrease of the cetane index. Best results were obtained with SO4 2--ZrO2 at 125 °C. Isomerization had both positive and negative effects on fuel properties: it reduced the cloud point but also increased the viscosity and decreased the cetane index. Due to the different reactivity between the saturated fraction (estearates, palmitates) and the unsaturated one (linoleates, linolenoates, oleates), an adequate control of the degree of isomerization was only possible by performing a previous fractionation step. A good combination was obtained by reacting the saturates rich fraction at 200 °C over H-mordenite and the unsaturated rich fraction at 150 °C over SO4 2-- ZrO2. The fuel obtained by mixing both reacted fractions had a cetane index of 49.5 and a cloud point of -2 °C. However, this combined approach yields only a little benefit compared to those obtained with the single reaction over SO4 2--ZrO2 at 125 °C.Fil: Yori, Juan Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; ArgentinaFil: D'amato, Miguel Angel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; ArgentinaFil: Grau, Javier Mario. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; ArgentinaFil: Pieck, Carlos Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; ArgentinaFil: Vera, Carlos Roman. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; ArgentinaAmerican Chemical Society2006-11info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/78030Yori, Juan Carlos; D'amato, Miguel Angel; Grau, Javier Mario; Pieck, Carlos Luis; Vera, Carlos Roman; Depression of the cloud point of biodiesel by reaction over solid acids; American Chemical Society; Energy & Fuels (print); 20; 6; 11-2006; 2721-27260887-0624CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1021/ef060245iinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T09:59:39Zoai:ri.conicet.gov.ar:11336/78030instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 09:59:39.687CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Depression of the cloud point of biodiesel by reaction over solid acids
title Depression of the cloud point of biodiesel by reaction over solid acids
spellingShingle Depression of the cloud point of biodiesel by reaction over solid acids
Yori, Juan Carlos
Depression Of the Cloud Point
Biodiesel
Reaction Over Acid Solids
title_short Depression of the cloud point of biodiesel by reaction over solid acids
title_full Depression of the cloud point of biodiesel by reaction over solid acids
title_fullStr Depression of the cloud point of biodiesel by reaction over solid acids
title_full_unstemmed Depression of the cloud point of biodiesel by reaction over solid acids
title_sort Depression of the cloud point of biodiesel by reaction over solid acids
dc.creator.none.fl_str_mv Yori, Juan Carlos
D'amato, Miguel Angel
Grau, Javier Mario
Pieck, Carlos Luis
Vera, Carlos Roman
author Yori, Juan Carlos
author_facet Yori, Juan Carlos
D'amato, Miguel Angel
Grau, Javier Mario
Pieck, Carlos Luis
Vera, Carlos Roman
author_role author
author2 D'amato, Miguel Angel
Grau, Javier Mario
Pieck, Carlos Luis
Vera, Carlos Roman
author2_role author
author
author
author
dc.subject.none.fl_str_mv Depression Of the Cloud Point
Biodiesel
Reaction Over Acid Solids
topic Depression Of the Cloud Point
Biodiesel
Reaction Over Acid Solids
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv Biodiesel obtained by transesterification of soy oil with methanol was isomerized in the liquid phase at 125-275 °C using solid acid catalysts. The purpose of this work was to improve the cold flow properties of biodiesel by inhibiting the formation of crystals. Crystallization was analyzed by means of the measurement of the cloud point of the fuel. Tested catalysts were SO4 2-- ZrO2 and H-mordenite. At a temperature of reaction (Tr) lower than 125 °C, the catalytic activity was negligible. At Tr > 200 °C, the reaction rate was greatly accelerated, but the cetane number was also decreased and the amount of coke deposits was greatly increased. While reacting biodiesel at 150-200 °C, a small decrease (4-6.5 °C) of the cloud point was obtained without a meaningful decrease of the cetane index. Best results were obtained with SO4 2--ZrO2 at 125 °C. Isomerization had both positive and negative effects on fuel properties: it reduced the cloud point but also increased the viscosity and decreased the cetane index. Due to the different reactivity between the saturated fraction (estearates, palmitates) and the unsaturated one (linoleates, linolenoates, oleates), an adequate control of the degree of isomerization was only possible by performing a previous fractionation step. A good combination was obtained by reacting the saturates rich fraction at 200 °C over H-mordenite and the unsaturated rich fraction at 150 °C over SO4 2-- ZrO2. The fuel obtained by mixing both reacted fractions had a cetane index of 49.5 and a cloud point of -2 °C. However, this combined approach yields only a little benefit compared to those obtained with the single reaction over SO4 2--ZrO2 at 125 °C.
Fil: Yori, Juan Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina
Fil: D'amato, Miguel Angel. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina
Fil: Grau, Javier Mario. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina
Fil: Pieck, Carlos Luis. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina
Fil: Vera, Carlos Roman. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina
description Biodiesel obtained by transesterification of soy oil with methanol was isomerized in the liquid phase at 125-275 °C using solid acid catalysts. The purpose of this work was to improve the cold flow properties of biodiesel by inhibiting the formation of crystals. Crystallization was analyzed by means of the measurement of the cloud point of the fuel. Tested catalysts were SO4 2-- ZrO2 and H-mordenite. At a temperature of reaction (Tr) lower than 125 °C, the catalytic activity was negligible. At Tr > 200 °C, the reaction rate was greatly accelerated, but the cetane number was also decreased and the amount of coke deposits was greatly increased. While reacting biodiesel at 150-200 °C, a small decrease (4-6.5 °C) of the cloud point was obtained without a meaningful decrease of the cetane index. Best results were obtained with SO4 2--ZrO2 at 125 °C. Isomerization had both positive and negative effects on fuel properties: it reduced the cloud point but also increased the viscosity and decreased the cetane index. Due to the different reactivity between the saturated fraction (estearates, palmitates) and the unsaturated one (linoleates, linolenoates, oleates), an adequate control of the degree of isomerization was only possible by performing a previous fractionation step. A good combination was obtained by reacting the saturates rich fraction at 200 °C over H-mordenite and the unsaturated rich fraction at 150 °C over SO4 2-- ZrO2. The fuel obtained by mixing both reacted fractions had a cetane index of 49.5 and a cloud point of -2 °C. However, this combined approach yields only a little benefit compared to those obtained with the single reaction over SO4 2--ZrO2 at 125 °C.
publishDate 2006
dc.date.none.fl_str_mv 2006-11
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/78030
Yori, Juan Carlos; D'amato, Miguel Angel; Grau, Javier Mario; Pieck, Carlos Luis; Vera, Carlos Roman; Depression of the cloud point of biodiesel by reaction over solid acids; American Chemical Society; Energy & Fuels (print); 20; 6; 11-2006; 2721-2726
0887-0624
CONICET Digital
CONICET
url http://hdl.handle.net/11336/78030
identifier_str_mv Yori, Juan Carlos; D'amato, Miguel Angel; Grau, Javier Mario; Pieck, Carlos Luis; Vera, Carlos Roman; Depression of the cloud point of biodiesel by reaction over solid acids; American Chemical Society; Energy & Fuels (print); 20; 6; 11-2006; 2721-2726
0887-0624
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1021/ef060245i
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv American Chemical Society
publisher.none.fl_str_mv American Chemical Society
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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