Ball milling modified SAPO-11 based catalysts for n-Decane hydroisomerization

Detalhes bibliográficos
Autor(a) principal: Ferreira, Luisa
Data de Publicação: 2019
Outros Autores: Ribeiro, Filipa, Fernandes, Auguste, Martins, Angela
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
Texto Completo: http://hdl.handle.net/10400.21/10348
Resumo: Bifunctional Pt/SAPO-11 catalysts were prepared using as acid matrix the microporous silico-aluminophosphate, SAPO-11, synthesized under microwave radiation. After synthesis, the material was physically modified using a ball mill, changing the grinding time but keeping frequency constant. The metal function (0.5 wt.% Pt) was introduced through mechanical mixture with commercial Pt loaded alumina. The catalysts were characterized by several techniques: powder X-Ray Diffraction, pyridine adsorption followed by infrared spectroscopy, low temperature N-2 adsorption, Hg intrusion porosimetry and electronic microscopy (SEM). The characterization data show modifications of structural and textural properties of the samples as the milling time increases. The catalytic behaviour of Pt/SAPO-11 materials was studied for hydroisomerization of long chain n-alkanes, using n-decane as model molecule, aiming to increase the production of mono-branched isomers. The catalytic results show that, under optimized milling conditions (60 min; 50 Hz) the selectivity into mono-branched isomers increased when compared with parent catalyst.
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spelling Ball milling modified SAPO-11 based catalysts for n-Decane hydroisomerizationn-DecaneHydroisomerizationMillingPtSAPO-11Bifunctional Pt/SAPO-11 catalysts were prepared using as acid matrix the microporous silico-aluminophosphate, SAPO-11, synthesized under microwave radiation. After synthesis, the material was physically modified using a ball mill, changing the grinding time but keeping frequency constant. The metal function (0.5 wt.% Pt) was introduced through mechanical mixture with commercial Pt loaded alumina. The catalysts were characterized by several techniques: powder X-Ray Diffraction, pyridine adsorption followed by infrared spectroscopy, low temperature N-2 adsorption, Hg intrusion porosimetry and electronic microscopy (SEM). The characterization data show modifications of structural and textural properties of the samples as the milling time increases. The catalytic behaviour of Pt/SAPO-11 materials was studied for hydroisomerization of long chain n-alkanes, using n-decane as model molecule, aiming to increase the production of mono-branched isomers. The catalytic results show that, under optimized milling conditions (60 min; 50 Hz) the selectivity into mono-branched isomers increased when compared with parent catalyst.WileyRCIPLFerreira, LuisaRibeiro, FilipaFernandes, AugusteMartins, Angela2019-07-22T09:19:10Z2019-06-142019-06-14T00:00:00Zinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10400.21/10348engFERREIRA, Luísa; [et al] – Ball milling modified SAPO-11 based catalysts for n-Decane hydroisomerization. Chemistryselect. ISSN 2365-6549. Vol. 4, N.º 22 (2019), pp. 6713-67182365-654910.1002/slct.201901457metadata only accessinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2023-08-03T10:00:10Zoai:repositorio.ipl.pt:10400.21/10348Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-19T20:18:47.360190Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse
dc.title.none.fl_str_mv Ball milling modified SAPO-11 based catalysts for n-Decane hydroisomerization
title Ball milling modified SAPO-11 based catalysts for n-Decane hydroisomerization
spellingShingle Ball milling modified SAPO-11 based catalysts for n-Decane hydroisomerization
Ferreira, Luisa
n-Decane
Hydroisomerization
Milling
Pt
SAPO-11
title_short Ball milling modified SAPO-11 based catalysts for n-Decane hydroisomerization
title_full Ball milling modified SAPO-11 based catalysts for n-Decane hydroisomerization
title_fullStr Ball milling modified SAPO-11 based catalysts for n-Decane hydroisomerization
title_full_unstemmed Ball milling modified SAPO-11 based catalysts for n-Decane hydroisomerization
title_sort Ball milling modified SAPO-11 based catalysts for n-Decane hydroisomerization
author Ferreira, Luisa
author_facet Ferreira, Luisa
Ribeiro, Filipa
Fernandes, Auguste
Martins, Angela
author_role author
author2 Ribeiro, Filipa
Fernandes, Auguste
Martins, Angela
author2_role author
author
author
dc.contributor.none.fl_str_mv RCIPL
dc.contributor.author.fl_str_mv Ferreira, Luisa
Ribeiro, Filipa
Fernandes, Auguste
Martins, Angela
dc.subject.por.fl_str_mv n-Decane
Hydroisomerization
Milling
Pt
SAPO-11
topic n-Decane
Hydroisomerization
Milling
Pt
SAPO-11
description Bifunctional Pt/SAPO-11 catalysts were prepared using as acid matrix the microporous silico-aluminophosphate, SAPO-11, synthesized under microwave radiation. After synthesis, the material was physically modified using a ball mill, changing the grinding time but keeping frequency constant. The metal function (0.5 wt.% Pt) was introduced through mechanical mixture with commercial Pt loaded alumina. The catalysts were characterized by several techniques: powder X-Ray Diffraction, pyridine adsorption followed by infrared spectroscopy, low temperature N-2 adsorption, Hg intrusion porosimetry and electronic microscopy (SEM). The characterization data show modifications of structural and textural properties of the samples as the milling time increases. The catalytic behaviour of Pt/SAPO-11 materials was studied for hydroisomerization of long chain n-alkanes, using n-decane as model molecule, aiming to increase the production of mono-branched isomers. The catalytic results show that, under optimized milling conditions (60 min; 50 Hz) the selectivity into mono-branched isomers increased when compared with parent catalyst.
publishDate 2019
dc.date.none.fl_str_mv 2019-07-22T09:19:10Z
2019-06-14
2019-06-14T00:00:00Z
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://hdl.handle.net/10400.21/10348
url http://hdl.handle.net/10400.21/10348
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv FERREIRA, Luísa; [et al] – Ball milling modified SAPO-11 based catalysts for n-Decane hydroisomerization. Chemistryselect. ISSN 2365-6549. Vol. 4, N.º 22 (2019), pp. 6713-6718
2365-6549
10.1002/slct.201901457
dc.rights.driver.fl_str_mv metadata only access
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rights_invalid_str_mv metadata only access
eu_rights_str_mv openAccess
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dc.publisher.none.fl_str_mv Wiley
publisher.none.fl_str_mv Wiley
dc.source.none.fl_str_mv reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)
instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação
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