Deactivation properties of a high-productive vanadia-titania catalyst for oxidation of o-xylene to phthalic anhydride
Autor(a) principal: | |
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Data de Publicação: | 2008 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Brazilian Journal of Chemical Engineering |
Texto Completo: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322008000200013 |
Resumo: | The behavior of a high-productive V2O5-TiO2 (anatase) supported O 4-28 catalyst for oxidation of o-xylene to phthalic anhydride was investigated in the first three years of its exploitation in industry. By using a suitable mathematical model, an identification problem was solved and activation profiles of the catalyst along a fixed bed located in the tubes of an industrial reactor were determined. Experimental temperature regimes and yields of the main and side products for different periods of the catalyst life were used. The proper technological regimes providing for a maximum yield according to the requirements of the catalyst producer company were defined. |
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Brazilian Journal of Chemical Engineering |
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Deactivation properties of a high-productive vanadia-titania catalyst for oxidation of o-xylene to phthalic anhydrideCatalyst deactivationExperimentalFixed-bedIdentification problemThe behavior of a high-productive V2O5-TiO2 (anatase) supported O 4-28 catalyst for oxidation of o-xylene to phthalic anhydride was investigated in the first three years of its exploitation in industry. By using a suitable mathematical model, an identification problem was solved and activation profiles of the catalyst along a fixed bed located in the tubes of an industrial reactor were determined. Experimental temperature regimes and yields of the main and side products for different periods of the catalyst life were used. The proper technological regimes providing for a maximum yield according to the requirements of the catalyst producer company were defined.Brazilian Society of Chemical Engineering2008-06-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322008000200013Brazilian Journal of Chemical Engineering v.25 n.2 2008reponame:Brazilian Journal of Chemical Engineeringinstname:Associação Brasileira de Engenharia Química (ABEQ)instacron:ABEQ10.1590/S0104-66322008000200013info:eu-repo/semantics/openAccessGeorgieva,A. T.Anastasov,A. I.Nikolov,V. A.eng2008-07-03T00:00:00Zoai:scielo:S0104-66322008000200013Revistahttps://www.scielo.br/j/bjce/https://old.scielo.br/oai/scielo-oai.phprgiudici@usp.br||rgiudici@usp.br1678-43830104-6632opendoar:2008-07-03T00:00Brazilian Journal of Chemical Engineering - Associação Brasileira de Engenharia Química (ABEQ)false |
dc.title.none.fl_str_mv |
Deactivation properties of a high-productive vanadia-titania catalyst for oxidation of o-xylene to phthalic anhydride |
title |
Deactivation properties of a high-productive vanadia-titania catalyst for oxidation of o-xylene to phthalic anhydride |
spellingShingle |
Deactivation properties of a high-productive vanadia-titania catalyst for oxidation of o-xylene to phthalic anhydride Georgieva,A. T. Catalyst deactivation Experimental Fixed-bed Identification problem |
title_short |
Deactivation properties of a high-productive vanadia-titania catalyst for oxidation of o-xylene to phthalic anhydride |
title_full |
Deactivation properties of a high-productive vanadia-titania catalyst for oxidation of o-xylene to phthalic anhydride |
title_fullStr |
Deactivation properties of a high-productive vanadia-titania catalyst for oxidation of o-xylene to phthalic anhydride |
title_full_unstemmed |
Deactivation properties of a high-productive vanadia-titania catalyst for oxidation of o-xylene to phthalic anhydride |
title_sort |
Deactivation properties of a high-productive vanadia-titania catalyst for oxidation of o-xylene to phthalic anhydride |
author |
Georgieva,A. T. |
author_facet |
Georgieva,A. T. Anastasov,A. I. Nikolov,V. A. |
author_role |
author |
author2 |
Anastasov,A. I. Nikolov,V. A. |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Georgieva,A. T. Anastasov,A. I. Nikolov,V. A. |
dc.subject.por.fl_str_mv |
Catalyst deactivation Experimental Fixed-bed Identification problem |
topic |
Catalyst deactivation Experimental Fixed-bed Identification problem |
description |
The behavior of a high-productive V2O5-TiO2 (anatase) supported O 4-28 catalyst for oxidation of o-xylene to phthalic anhydride was investigated in the first three years of its exploitation in industry. By using a suitable mathematical model, an identification problem was solved and activation profiles of the catalyst along a fixed bed located in the tubes of an industrial reactor were determined. Experimental temperature regimes and yields of the main and side products for different periods of the catalyst life were used. The proper technological regimes providing for a maximum yield according to the requirements of the catalyst producer company were defined. |
publishDate |
2008 |
dc.date.none.fl_str_mv |
2008-06-01 |
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=S0104-66322008000200013 |
url |
http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-66322008000200013 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
10.1590/S0104-66322008000200013 |
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 |
Brazilian Society of Chemical Engineering |
publisher.none.fl_str_mv |
Brazilian Society of Chemical Engineering |
dc.source.none.fl_str_mv |
Brazilian Journal of Chemical Engineering v.25 n.2 2008 reponame:Brazilian Journal of Chemical Engineering instname:Associação Brasileira de Engenharia Química (ABEQ) instacron:ABEQ |
instname_str |
Associação Brasileira de Engenharia Química (ABEQ) |
instacron_str |
ABEQ |
institution |
ABEQ |
reponame_str |
Brazilian Journal of Chemical Engineering |
collection |
Brazilian Journal of Chemical Engineering |
repository.name.fl_str_mv |
Brazilian Journal of Chemical Engineering - Associação Brasileira de Engenharia Química (ABEQ) |
repository.mail.fl_str_mv |
rgiudici@usp.br||rgiudici@usp.br |
_version_ |
1754213172652277760 |