Chemical properties of biosilica and bio-oil derived from fast pyrolysis of Melosira varians

Autores
Piloni, Roxana Verónica; Brunetti, Veronica; Urcelay, Roberto Carlos; Daga, Ines Claudia; Moyano, Elizabeth Laura
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
This study examined bio-oil and solid products generated from the diatom Melosira varians by fast pyrolysis using a fixed-bed reactor with inert gas flow and a vacuum medium. The effect of temperature (300–700 °C) on product yields, the bio-oil composition and the properties of the solid fraction were evaluated. It was found that the most suitable temperature to obtain significant amounts of high-quality bio-oil (29% yield) was 450 °C, at which point fatty acids appeared as main components. Under all operating conditions a solid material, mainly composed of siliceous frustules, was the most abundant product (59–88% yield). These materials were exhaustively characterized by SEM microscopy, Raman and FT-IR spectroscopy, XRD, elemental analysis and BET surface analyses. The structure and morphology of the biosilica were practically unaltered in the studied temperature range. The conductivity properties of the solids derived from diatom and their composites with carbon nanotubes were determined using cyclic voltammetry.
Fil: Piloni, Roxana Verónica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
Fil: Brunetti, Veronica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
Fil: Urcelay, Roberto Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina
Fil: Daga, Ines Claudia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina
Fil: Moyano, Elizabeth Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
Materia
Biomass
Biosilica
Diatom
Fast Pyrolysis
Microalgae
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:11336/64366
Acceder
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oai_identifier_str oai:ri.conicet.gov.ar:11336/64366
network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling Chemical properties of biosilica and bio-oil derived from fast pyrolysis of Melosira variansPiloni, Roxana VerónicaBrunetti, VeronicaUrcelay, Roberto CarlosDaga, Ines ClaudiaMoyano, Elizabeth LauraBiomassBiosilicaDiatomFast PyrolysisMicroalgaehttps://purl.org/becyt/ford/1.4https://purl.org/becyt/ford/1This study examined bio-oil and solid products generated from the diatom Melosira varians by fast pyrolysis using a fixed-bed reactor with inert gas flow and a vacuum medium. The effect of temperature (300–700 °C) on product yields, the bio-oil composition and the properties of the solid fraction were evaluated. It was found that the most suitable temperature to obtain significant amounts of high-quality bio-oil (29% yield) was 450 °C, at which point fatty acids appeared as main components. Under all operating conditions a solid material, mainly composed of siliceous frustules, was the most abundant product (59–88% yield). These materials were exhaustively characterized by SEM microscopy, Raman and FT-IR spectroscopy, XRD, elemental analysis and BET surface analyses. The structure and morphology of the biosilica were practically unaltered in the studied temperature range. The conductivity properties of the solids derived from diatom and their composites with carbon nanotubes were determined using cyclic voltammetry.Fil: Piloni, Roxana Verónica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; ArgentinaFil: Brunetti, Veronica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; ArgentinaFil: Urcelay, Roberto Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; ArgentinaFil: Daga, Ines Claudia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; ArgentinaFil: Moyano, Elizabeth Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; ArgentinaElsevier Science2017-09info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/64366Piloni, Roxana Verónica; Brunetti, Veronica; Urcelay, Roberto Carlos; Daga, Ines Claudia; Moyano, Elizabeth Laura; Chemical properties of biosilica and bio-oil derived from fast pyrolysis of Melosira varians; Elsevier Science; Journal of Analytical and Applied Pyrolysis; 127; 9-2017; 402-4100165-2370CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.jaap.2017.07.009info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0165237017301213info:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-sa/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-03T09:46:35Zoai:ri.conicet.gov.ar:11336/64366instacron: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:34982025-09-03 09:46:35.971CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv Chemical properties of biosilica and bio-oil derived from fast pyrolysis of Melosira varians
title Chemical properties of biosilica and bio-oil derived from fast pyrolysis of Melosira varians
spellingShingle Chemical properties of biosilica and bio-oil derived from fast pyrolysis of Melosira varians
Piloni, Roxana Verónica
Biomass
Biosilica
Diatom
Fast Pyrolysis
Microalgae
title_short Chemical properties of biosilica and bio-oil derived from fast pyrolysis of Melosira varians
title_full Chemical properties of biosilica and bio-oil derived from fast pyrolysis of Melosira varians
title_fullStr Chemical properties of biosilica and bio-oil derived from fast pyrolysis of Melosira varians
title_full_unstemmed Chemical properties of biosilica and bio-oil derived from fast pyrolysis of Melosira varians
title_sort Chemical properties of biosilica and bio-oil derived from fast pyrolysis of Melosira varians
dc.creator.none.fl_str_mv Piloni, Roxana Verónica
Brunetti, Veronica
Urcelay, Roberto Carlos
Daga, Ines Claudia
Moyano, Elizabeth Laura
author Piloni, Roxana Verónica
author_facet Piloni, Roxana Verónica
Brunetti, Veronica
Urcelay, Roberto Carlos
Daga, Ines Claudia
Moyano, Elizabeth Laura
author_role author
author2 Brunetti, Veronica
Urcelay, Roberto Carlos
Daga, Ines Claudia
Moyano, Elizabeth Laura
author2_role author
author
author
author
dc.subject.none.fl_str_mv Biomass
Biosilica
Diatom
Fast Pyrolysis
Microalgae
topic Biomass
Biosilica
Diatom
Fast Pyrolysis
Microalgae
purl_subject.fl_str_mv https://purl.org/becyt/ford/1.4
https://purl.org/becyt/ford/1
dc.description.none.fl_txt_mv This study examined bio-oil and solid products generated from the diatom Melosira varians by fast pyrolysis using a fixed-bed reactor with inert gas flow and a vacuum medium. The effect of temperature (300–700 °C) on product yields, the bio-oil composition and the properties of the solid fraction were evaluated. It was found that the most suitable temperature to obtain significant amounts of high-quality bio-oil (29% yield) was 450 °C, at which point fatty acids appeared as main components. Under all operating conditions a solid material, mainly composed of siliceous frustules, was the most abundant product (59–88% yield). These materials were exhaustively characterized by SEM microscopy, Raman and FT-IR spectroscopy, XRD, elemental analysis and BET surface analyses. The structure and morphology of the biosilica were practically unaltered in the studied temperature range. The conductivity properties of the solids derived from diatom and their composites with carbon nanotubes were determined using cyclic voltammetry.
Fil: Piloni, Roxana Verónica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
Fil: Brunetti, Veronica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
Fil: Urcelay, Roberto Carlos. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina
Fil: Daga, Ines Claudia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto Multidisciplinario de Biología Vegetal. Universidad Nacional de Córdoba. Facultad de Ciencias Exactas Físicas y Naturales. Instituto Multidisciplinario de Biología Vegetal; Argentina
Fil: Moyano, Elizabeth Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Córdoba. Instituto de Investigaciones en Físico-química de Córdoba. Universidad Nacional de Córdoba. Facultad de Ciencias Químicas. Instituto de Investigaciones en Físico-química de Córdoba; Argentina
description This study examined bio-oil and solid products generated from the diatom Melosira varians by fast pyrolysis using a fixed-bed reactor with inert gas flow and a vacuum medium. The effect of temperature (300–700 °C) on product yields, the bio-oil composition and the properties of the solid fraction were evaluated. It was found that the most suitable temperature to obtain significant amounts of high-quality bio-oil (29% yield) was 450 °C, at which point fatty acids appeared as main components. Under all operating conditions a solid material, mainly composed of siliceous frustules, was the most abundant product (59–88% yield). These materials were exhaustively characterized by SEM microscopy, Raman and FT-IR spectroscopy, XRD, elemental analysis and BET surface analyses. The structure and morphology of the biosilica were practically unaltered in the studied temperature range. The conductivity properties of the solids derived from diatom and their composites with carbon nanotubes were determined using cyclic voltammetry.
publishDate 2017
dc.date.none.fl_str_mv 2017-09
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/11336/64366
Piloni, Roxana Verónica; Brunetti, Veronica; Urcelay, Roberto Carlos; Daga, Ines Claudia; Moyano, Elizabeth Laura; Chemical properties of biosilica and bio-oil derived from fast pyrolysis of Melosira varians; Elsevier Science; Journal of Analytical and Applied Pyrolysis; 127; 9-2017; 402-410
0165-2370
CONICET Digital
CONICET
url http://hdl.handle.net/11336/64366
identifier_str_mv Piloni, Roxana Verónica; Brunetti, Veronica; Urcelay, Roberto Carlos; Daga, Ines Claudia; Moyano, Elizabeth Laura; Chemical properties of biosilica and bio-oil derived from fast pyrolysis of Melosira varians; Elsevier Science; Journal of Analytical and Applied Pyrolysis; 127; 9-2017; 402-410
0165-2370
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.jaap.2017.07.009
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S0165237017301213
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
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
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 12.885934

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