Ball milling modified SAPO-11 based catalysts for n-Decane hydroisomerization
Autor(a) principal: | |
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Data de Publicação: | 2019 |
Outros Autores: | , , |
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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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 info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
metadata only access |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
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 instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
repository.mail.fl_str_mv |
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1817554346839113728 |