Trimetallic naphtha reforming catalysts II. Properties of the acid function and influence of the order of addition of the metallic precursors on Pt-Re-Sn/ -Al2O3-Cl

Detalhes bibliográficos
Autor(a) principal: Carvalho, Luiz Souza
Data de Publicação: 2004
Outros Autores: Pieck, C. L., Varela, Maria do Carmo Rangel Santos, Fígoli, N. S., Vera, C. R., Parera, José Miguel
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Institucional da UFBA
Texto Completo: http://www.repositorio.ufba.br/ri/handle/ri/7188
Resumo: p. 105-116
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spelling Carvalho, Luiz SouzaPieck, C. L.Varela, Maria do Carmo Rangel SantosFígoli, N. S.Vera, C. R.Parera, José MiguelCarvalho, Luiz SouzaPieck, C. L.Varela, Maria do Carmo Rangel SantosFígoli, N. S.Vera, C. R.Parera, José Miguel2012-11-13T12:28:10Z20040926-860Xhttp://www.repositorio.ufba.br/ri/handle/ri/7188v. 269, v. 1-2p. 105-116Mono, bi- and trimetallic catalysts were prepared by successive impregnation of -Al2O3 with Pt, Re and Sn precursors, with intermediate drying, calcination and reduction steps. The catalysts were tested in the reactions of n-pentane (500 ◦C, WHSV = 4.5, H2:n-C5 = 6) and n-octane (500 ◦C, WHSV = 1.8, H2:n-C8 = 10). Concerning the preparation parameters it was found that the addition of Sn first favorably affects the catalytic acid function, increasing the activity for alkane isomerization and cyclization and decreasing cracking and coking. The addition of Re first has opposite effects. It increases the rates of undesirable reactions which require strong acidity, i.e. cracking and coking. Basic SnOx species are responsible for a decrease in the number and strength of acid sites while highly dispersed ReOx-AlOy surface species increase the relative concentration of strong acid sites. These facts have been confirmed by pyridine TPD and TPO of coke deposits.Submitted by JURANDI DE SOUZA SILVA (jssufba@hotmail.com) on 2012-11-13T12:28:10Z No. of bitstreams: 1 CONFIG~1....0-S0926860X04002911-main.pdf: 210012 bytes, checksum: 278546a58dc1c755e6a23a8abb40c947 (MD5)Made available in DSpace on 2012-11-13T12:28:10Z (GMT). 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Properties of the acid function and influence of the order of addition of the metallic precursors on Pt-Re-Sn/ -Al2O3-ClApplied Catalysis A-Generalinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article10000-01-01enginfo:eu-repo/semantics/openAccessORIGINALCONFIG~1....0-S0926860X04002911-main.pdfCONFIG~1....0-S0926860X04002911-main.pdfapplication/pdf210012https://repositorio.ufba.br/bitstream/ri/7188/1/CONFIG~1....0-S0926860X04002911-main.pdf278546a58dc1c755e6a23a8abb40c947MD51LICENSElicense.txtlicense.txttext/plain1809https://repositorio.ufba.br/bitstream/ri/7188/2/license.txt8bb3e3eb871f5854a9ec419f68651b60MD52TEXTCONFIG~1....0-S0926860X04002911-main.pdf.txtCONFIG~1....0-S0926860X04002911-main.pdf.txtExtracted texttext/plain57508https://repositorio.ufba.br/bitstream/ri/7188/3/CONFIG~1....0-S0926860X04002911-main.pdf.txt1b17d470b436f90b9b9116e05a38f92fMD53ri/71882022-08-08 13:17:43.313oai:repositorio.ufba.br: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ório InstitucionalPUBhttp://192.188.11.11:8080/oai/requestopendoar:19322022-08-08T16:17:43Repositório Institucional da UFBA - Universidade Federal da Bahia (UFBA)false
dc.title.pt_BR.fl_str_mv Trimetallic naphtha reforming catalysts II. Properties of the acid function and influence of the order of addition of the metallic precursors on Pt-Re-Sn/ -Al2O3-Cl
dc.title.alternative.pt_BR.fl_str_mv Applied Catalysis A-General
title Trimetallic naphtha reforming catalysts II. Properties of the acid function and influence of the order of addition of the metallic precursors on Pt-Re-Sn/ -Al2O3-Cl
spellingShingle Trimetallic naphtha reforming catalysts II. Properties of the acid function and influence of the order of addition of the metallic precursors on Pt-Re-Sn/ -Al2O3-Cl
Carvalho, Luiz Souza
Trimetallic catalysts
Acid function
Successive impregnation
title_short Trimetallic naphtha reforming catalysts II. Properties of the acid function and influence of the order of addition of the metallic precursors on Pt-Re-Sn/ -Al2O3-Cl
title_full Trimetallic naphtha reforming catalysts II. Properties of the acid function and influence of the order of addition of the metallic precursors on Pt-Re-Sn/ -Al2O3-Cl
title_fullStr Trimetallic naphtha reforming catalysts II. Properties of the acid function and influence of the order of addition of the metallic precursors on Pt-Re-Sn/ -Al2O3-Cl
title_full_unstemmed Trimetallic naphtha reforming catalysts II. Properties of the acid function and influence of the order of addition of the metallic precursors on Pt-Re-Sn/ -Al2O3-Cl
title_sort Trimetallic naphtha reforming catalysts II. Properties of the acid function and influence of the order of addition of the metallic precursors on Pt-Re-Sn/ -Al2O3-Cl
author Carvalho, Luiz Souza
author_facet Carvalho, Luiz Souza
Pieck, C. L.
Varela, Maria do Carmo Rangel Santos
Fígoli, N. S.
Vera, C. R.
Parera, José Miguel
author_role author
author2 Pieck, C. L.
Varela, Maria do Carmo Rangel Santos
Fígoli, N. S.
Vera, C. R.
Parera, José Miguel
author2_role author
author
author
author
author
dc.contributor.author.fl_str_mv Carvalho, Luiz Souza
Pieck, C. L.
Varela, Maria do Carmo Rangel Santos
Fígoli, N. S.
Vera, C. R.
Parera, José Miguel
Carvalho, Luiz Souza
Pieck, C. L.
Varela, Maria do Carmo Rangel Santos
Fígoli, N. S.
Vera, C. R.
Parera, José Miguel
dc.subject.por.fl_str_mv Trimetallic catalysts
Acid function
Successive impregnation
topic Trimetallic catalysts
Acid function
Successive impregnation
description p. 105-116
publishDate 2004
dc.date.issued.fl_str_mv 2004
dc.date.accessioned.fl_str_mv 2012-11-13T12:28:10Z
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://www.repositorio.ufba.br/ri/handle/ri/7188
dc.identifier.issn.none.fl_str_mv 0926-860X
dc.identifier.number.pt_BR.fl_str_mv v. 269, v. 1-2
identifier_str_mv 0926-860X
v. 269, v. 1-2
url http://www.repositorio.ufba.br/ri/handle/ri/7188
dc.language.iso.fl_str_mv eng
language eng
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.pt_BR.fl_str_mv http://dx.doi.org/10.1016/j.apcata.2004.04.006
dc.source.none.fl_str_mv reponame:Repositório Institucional da UFBA
instname:Universidade Federal da Bahia (UFBA)
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reponame_str Repositório Institucional da UFBA
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