Evaluation of sodium/protonated titanate nanotubes catalysts in virgin and post consumer PET depolymerization

Detalhes bibliográficos
Autor(a) principal: Lima, Gabrielle Ritter
Data de Publicação: 2019
Outros Autores: Monteiro, Wesley Formentin, Scheid, Carolina Majolo, Ligabue, Rosane Angelica, Santana, Ruth Marlene Campomanes
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFRGS
Texto Completo: http://hdl.handle.net/10183/219706
Resumo: The high PET consume, mainly as bottles, associated with rapid disposal and high resistance to ambient conditions and biological degradation lead to accumulation in the enviromental, constituting a worrying scenario in world level. Chemical recycle PET by glycolysis is an important alternative, once bis(hydroxiethyl)terephthalate (BHET), high added value monomer, can be obtained. In this context, this study approaches the use of titanate nanotubes (i.e. sodium/protonated titanate nanotubes) as catalyst for PET glycolysis. Reactional conditions, the origin and granulometry of PET flakes were evaluated (at 196 °C). Best results (BHET yield > 80%) were obtained for both catalyst in 3 h of reaction. The protonated titanate nanotubes catalyst were more efficient than sodium titanate nanotubes due to greater concentration of Brönsted and Lewis acid sites, indicated by TPD analyzes.
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spelling Lima, Gabrielle RitterMonteiro, Wesley FormentinScheid, Carolina MajoloLigabue, Rosane AngelicaSantana, Ruth Marlene Campomanes2021-04-09T04:24:54Z20191572-879Xhttp://hdl.handle.net/10183/219706001123939The high PET consume, mainly as bottles, associated with rapid disposal and high resistance to ambient conditions and biological degradation lead to accumulation in the enviromental, constituting a worrying scenario in world level. Chemical recycle PET by glycolysis is an important alternative, once bis(hydroxiethyl)terephthalate (BHET), high added value monomer, can be obtained. In this context, this study approaches the use of titanate nanotubes (i.e. sodium/protonated titanate nanotubes) as catalyst for PET glycolysis. Reactional conditions, the origin and granulometry of PET flakes were evaluated (at 196 °C). Best results (BHET yield > 80%) were obtained for both catalyst in 3 h of reaction. The protonated titanate nanotubes catalyst were more efficient than sodium titanate nanotubes due to greater concentration of Brönsted and Lewis acid sites, indicated by TPD analyzes.application/pdfengMCatalysis letters. Basel. Vol. 149 (2019), p. 1415-1426Politereftalato de etileno (PET)ReciclagemNanotubosChemical recyclingGlycolysisPETNanostructure catalystsTitanate nanotubesEvaluation of sodium/protonated titanate nanotubes catalysts in virgin and post consumer PET depolymerizationinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/otherinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSTEXT001123939.pdf.txt001123939.pdf.txtExtracted Texttext/plain42524http://www.lume.ufrgs.br/bitstream/10183/219706/2/001123939.pdf.txt77af10b2be99384f4377c56434526bcdMD52ORIGINAL001123939.pdfTexto completo (inglês)application/pdf1734391http://www.lume.ufrgs.br/bitstream/10183/219706/1/001123939.pdf666c9cce2c4940e5bb39e57010e149a1MD5110183/2197062021-05-07 04:55:42.001591oai:www.lume.ufrgs.br:10183/219706Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2021-05-07T07:55:42Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false
dc.title.pt_BR.fl_str_mv Evaluation of sodium/protonated titanate nanotubes catalysts in virgin and post consumer PET depolymerization
title Evaluation of sodium/protonated titanate nanotubes catalysts in virgin and post consumer PET depolymerization
spellingShingle Evaluation of sodium/protonated titanate nanotubes catalysts in virgin and post consumer PET depolymerization
Lima, Gabrielle Ritter
Politereftalato de etileno (PET)
Reciclagem
Nanotubos
Chemical recycling
Glycolysis
PET
Nanostructure catalysts
Titanate nanotubes
title_short Evaluation of sodium/protonated titanate nanotubes catalysts in virgin and post consumer PET depolymerization
title_full Evaluation of sodium/protonated titanate nanotubes catalysts in virgin and post consumer PET depolymerization
title_fullStr Evaluation of sodium/protonated titanate nanotubes catalysts in virgin and post consumer PET depolymerization
title_full_unstemmed Evaluation of sodium/protonated titanate nanotubes catalysts in virgin and post consumer PET depolymerization
title_sort Evaluation of sodium/protonated titanate nanotubes catalysts in virgin and post consumer PET depolymerization
author Lima, Gabrielle Ritter
author_facet Lima, Gabrielle Ritter
Monteiro, Wesley Formentin
Scheid, Carolina Majolo
Ligabue, Rosane Angelica
Santana, Ruth Marlene Campomanes
author_role author
author2 Monteiro, Wesley Formentin
Scheid, Carolina Majolo
Ligabue, Rosane Angelica
Santana, Ruth Marlene Campomanes
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Lima, Gabrielle Ritter
Monteiro, Wesley Formentin
Scheid, Carolina Majolo
Ligabue, Rosane Angelica
Santana, Ruth Marlene Campomanes
dc.subject.por.fl_str_mv Politereftalato de etileno (PET)
Reciclagem
Nanotubos
topic Politereftalato de etileno (PET)
Reciclagem
Nanotubos
Chemical recycling
Glycolysis
PET
Nanostructure catalysts
Titanate nanotubes
dc.subject.eng.fl_str_mv Chemical recycling
Glycolysis
PET
Nanostructure catalysts
Titanate nanotubes
description The high PET consume, mainly as bottles, associated with rapid disposal and high resistance to ambient conditions and biological degradation lead to accumulation in the enviromental, constituting a worrying scenario in world level. Chemical recycle PET by glycolysis is an important alternative, once bis(hydroxiethyl)terephthalate (BHET), high added value monomer, can be obtained. In this context, this study approaches the use of titanate nanotubes (i.e. sodium/protonated titanate nanotubes) as catalyst for PET glycolysis. Reactional conditions, the origin and granulometry of PET flakes were evaluated (at 196 °C). Best results (BHET yield > 80%) were obtained for both catalyst in 3 h of reaction. The protonated titanate nanotubes catalyst were more efficient than sodium titanate nanotubes due to greater concentration of Brönsted and Lewis acid sites, indicated by TPD analyzes.
publishDate 2019
dc.date.issued.fl_str_mv 2019
dc.date.accessioned.fl_str_mv 2021-04-09T04:24:54Z
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
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dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
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dc.identifier.uri.fl_str_mv http://hdl.handle.net/10183/219706
dc.identifier.issn.pt_BR.fl_str_mv 1572-879X
dc.identifier.nrb.pt_BR.fl_str_mv 001123939
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001123939
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dc.language.iso.fl_str_mv eng
language eng
dc.relation.ispartof.pt_BR.fl_str_mv MCatalysis letters. Basel. Vol. 149 (2019), p. 1415-1426
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reponame_str Repositório Institucional da UFRGS
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