Oxidative dehydration of glycerol to acrylic acid over vanadium-impregnated zeolite beta

Detalhes bibliográficos
Autor(a) principal: Pestana,Carolina F. M.
Data de Publicação: 2013
Outros Autores: Guerra,Antônio C. O., Ferreira,Glaucio B., Turci,Cássia C., Mota,Claudio J. A.
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Journal of the Brazilian Chemical Society (Online)
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532013000100014
Resumo: The oxidative dehydration of glycerol to acrylic acid was studied over vanadium-impregnated zeolite Beta. Catalysts were prepared by wet impregnation of ammonium metavanadate over ammonium-exchanged zeolite Beta, followed by air calcination at 823 K. Impregnation reduced the specific surface area, but did not significantly affected the acidity (Brønsted and Lewis) of the zeolites. The catalytic evaluation was carried out in a fixed bed flow reactor using air as the carrier and injecting glycerol by means of a syringe pump. Acrolein was the main product, with acetaldehyde and hydroxy-acetone (acetol) being also formed. Acrylic acid was formed with approximately 25% selectivity at 548 K over the impregnated zeolites. The result can be explained by XPS (X-ray photoelectron spectroscopy) measurements, which indicated a good dispersion of the vanadium inside the pores.
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spelling Oxidative dehydration of glycerol to acrylic acid over vanadium-impregnated zeolite betaglycerolacrylic acidzeolitedehydrationoxidationThe oxidative dehydration of glycerol to acrylic acid was studied over vanadium-impregnated zeolite Beta. Catalysts were prepared by wet impregnation of ammonium metavanadate over ammonium-exchanged zeolite Beta, followed by air calcination at 823 K. Impregnation reduced the specific surface area, but did not significantly affected the acidity (Brønsted and Lewis) of the zeolites. The catalytic evaluation was carried out in a fixed bed flow reactor using air as the carrier and injecting glycerol by means of a syringe pump. Acrolein was the main product, with acetaldehyde and hydroxy-acetone (acetol) being also formed. Acrylic acid was formed with approximately 25% selectivity at 548 K over the impregnated zeolites. The result can be explained by XPS (X-ray photoelectron spectroscopy) measurements, which indicated a good dispersion of the vanadium inside the pores.Sociedade Brasileira de Química2013-01-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532013000100014Journal of the Brazilian Chemical Society v.24 n.1 2013reponame:Journal of the Brazilian Chemical Society (Online)instname:Sociedade Brasileira de Química (SBQ)instacron:SBQ10.1590/S0103-50532013000100014info:eu-repo/semantics/openAccessPestana,Carolina F. M.Guerra,Antônio C. O.Ferreira,Glaucio B.Turci,Cássia C.Mota,Claudio J. A.eng2013-02-28T00:00:00Zoai:scielo:S0103-50532013000100014Revistahttp://jbcs.sbq.org.brONGhttps://old.scielo.br/oai/scielo-oai.php||office@jbcs.sbq.org.br1678-47900103-5053opendoar:2013-02-28T00:00Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)false
dc.title.none.fl_str_mv Oxidative dehydration of glycerol to acrylic acid over vanadium-impregnated zeolite beta
title Oxidative dehydration of glycerol to acrylic acid over vanadium-impregnated zeolite beta
spellingShingle Oxidative dehydration of glycerol to acrylic acid over vanadium-impregnated zeolite beta
Pestana,Carolina F. M.
glycerol
acrylic acid
zeolite
dehydration
oxidation
title_short Oxidative dehydration of glycerol to acrylic acid over vanadium-impregnated zeolite beta
title_full Oxidative dehydration of glycerol to acrylic acid over vanadium-impregnated zeolite beta
title_fullStr Oxidative dehydration of glycerol to acrylic acid over vanadium-impregnated zeolite beta
title_full_unstemmed Oxidative dehydration of glycerol to acrylic acid over vanadium-impregnated zeolite beta
title_sort Oxidative dehydration of glycerol to acrylic acid over vanadium-impregnated zeolite beta
author Pestana,Carolina F. M.
author_facet Pestana,Carolina F. M.
Guerra,Antônio C. O.
Ferreira,Glaucio B.
Turci,Cássia C.
Mota,Claudio J. A.
author_role author
author2 Guerra,Antônio C. O.
Ferreira,Glaucio B.
Turci,Cássia C.
Mota,Claudio J. A.
author2_role author
author
author
author
dc.contributor.author.fl_str_mv Pestana,Carolina F. M.
Guerra,Antônio C. O.
Ferreira,Glaucio B.
Turci,Cássia C.
Mota,Claudio J. A.
dc.subject.por.fl_str_mv glycerol
acrylic acid
zeolite
dehydration
oxidation
topic glycerol
acrylic acid
zeolite
dehydration
oxidation
description The oxidative dehydration of glycerol to acrylic acid was studied over vanadium-impregnated zeolite Beta. Catalysts were prepared by wet impregnation of ammonium metavanadate over ammonium-exchanged zeolite Beta, followed by air calcination at 823 K. Impregnation reduced the specific surface area, but did not significantly affected the acidity (Brønsted and Lewis) of the zeolites. The catalytic evaluation was carried out in a fixed bed flow reactor using air as the carrier and injecting glycerol by means of a syringe pump. Acrolein was the main product, with acetaldehyde and hydroxy-acetone (acetol) being also formed. Acrylic acid was formed with approximately 25% selectivity at 548 K over the impregnated zeolites. The result can be explained by XPS (X-ray photoelectron spectroscopy) measurements, which indicated a good dispersion of the vanadium inside the pores.
publishDate 2013
dc.date.none.fl_str_mv 2013-01-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532013000100014
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0103-50532013000100014
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S0103-50532013000100014
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Química
publisher.none.fl_str_mv Sociedade Brasileira de Química
dc.source.none.fl_str_mv Journal of the Brazilian Chemical Society v.24 n.1 2013
reponame:Journal of the Brazilian Chemical Society (Online)
instname:Sociedade Brasileira de Química (SBQ)
instacron:SBQ
instname_str Sociedade Brasileira de Química (SBQ)
instacron_str SBQ
institution SBQ
reponame_str Journal of the Brazilian Chemical Society (Online)
collection Journal of the Brazilian Chemical Society (Online)
repository.name.fl_str_mv Journal of the Brazilian Chemical Society (Online) - Sociedade Brasileira de Química (SBQ)
repository.mail.fl_str_mv ||office@jbcs.sbq.org.br
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