Influ?ncia das raz?es molares SiO2/Al2O3 e Me/Al2O3 sobre as propriedades de peneiras moleculares tipo SAPO-34 e MeAPSO-34

Detalhes bibliográficos
Autor(a) principal: Carvalhal, Carlos Henrique de Melo
Data de Publicação: 2015
Tipo de documento: Dissertação
Idioma: por
Título da fonte: Biblioteca Digital de Teses e Dissertações da UFRRJ
Texto Completo: https://tede.ufrrj.br/jspui/handle/jspui/2889
Resumo: The molecular SAPO-34 was synthesized by hydrothermal crystallization method using 4 different values for the molar ratio SiO2/Al2O3 at 3 different reaction times (24h, 48h and 120). The molecular MeAPSO-34 was synthesized by hydrothermal crystallization method using two different metals, niquel and cobalt, using 5 molar ratio Me/Al2O3 different (0.0; 0.01; 0.02; 0.03 and 0.04 ). All samples of SAPO-34 and MeAPSO-34 obtained were characterized by X-ray diffraction, nitrogen adsorption, ammonia temperature programmed desorption and scanning electron microscopy. The analysis of X-ray diffraction confirmed the achievement of the CHA structure type in all cases. By nitrogen adsorption specific area were obtained, and values of specific micropore volume compatible with the expected structure (CHA). It was also observed that the acidity of the samples strongly depends on its chemical composition.
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spelling Fernandes, Lindoval Domiciano837.359.297-15Fernandes, Lindoval DomicianoRodrigues, Alexandre Carlos CamachoMartins, Renata Luz098.172.197-47http://lattes.cnpq.br/2541848532414393Carvalhal, Carlos Henrique de Melo2019-09-12T19:39:23Z2015-08-19CARVALHAL, Carlos Henrique de Melo. Influ?ncia das raz?es molares SiO2/Al2O3 e Me/Al2O3 sobre as propriedades de peneiras moleculares tipo SAPO-34 e MeAPSO-34. 2015. 60 f. Disserta??o (Mestrado em Engenharia Qu?mica). Instituto de Tecnologia, Universidade Federal Rural do Rio de Janeiro, Serop?dica, RJ, 2015.https://tede.ufrrj.br/jspui/handle/jspui/2889The molecular SAPO-34 was synthesized by hydrothermal crystallization method using 4 different values for the molar ratio SiO2/Al2O3 at 3 different reaction times (24h, 48h and 120). The molecular MeAPSO-34 was synthesized by hydrothermal crystallization method using two different metals, niquel and cobalt, using 5 molar ratio Me/Al2O3 different (0.0; 0.01; 0.02; 0.03 and 0.04 ). All samples of SAPO-34 and MeAPSO-34 obtained were characterized by X-ray diffraction, nitrogen adsorption, ammonia temperature programmed desorption and scanning electron microscopy. The analysis of X-ray diffraction confirmed the achievement of the CHA structure type in all cases. By nitrogen adsorption specific area were obtained, and values of specific micropore volume compatible with the expected structure (CHA). It was also observed that the acidity of the samples strongly depends on its chemical composition.A peneira molecular SAPO-34 foi sintetizada pelo m?todo de cristaliza??o hidrot?rmica utilizando 4 valores diferentes para a raz?o molar SiO2/Al2O3 e 3 tempos de rea??es diferentes (24h, 48h e 120). A peneira molecularar MeAPSO-34 foi sintetizada pelo m?todo de cristaliza??o hidrot?rmica utilizando 2 metais diferentes, n?quel e cobalto, utilizando 5 raz?es molares Me/Al2O3 diferentes ( 0,0; 0,01; 0,02; 0,03 e 0,04). Todas as amostras de SAPO-34 e MeAPSO-34 obtidas foram caracterizadas por difra??o de raios-x, adsor??o de nitrog?nio, dessor??o de am?nia a temperatura programada e microscopia eletr?nica de varredura. A an?lise de difra??o de raios-x confirmou a obten??o da estrutura tipo CHA para todos os casos. Por adsor??o de nitrog?nio foram obtidos valores de ?rea espec?fica e volume espec?fico de microporo compat?veis com a estrutura esperada (CHA). Foi observado tamb?m que a acidez das amostras depende fortemente de sua composi??o qu?mica.Submitted by Jorge Silva (jorgelmsilva@ufrrj.br) on 2019-09-12T19:39:23Z No. of bitstreams: 1 2015 - Carlos Henrique de Melo Carvalhal.pdf: 5704480 bytes, checksum: cf1db55e40ab97c9a62579e51d2baf4f (MD5)Made available in DSpace on 2019-09-12T19:39:23Z (GMT). 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dc.title.por.fl_str_mv Influ?ncia das raz?es molares SiO2/Al2O3 e Me/Al2O3 sobre as propriedades de peneiras moleculares tipo SAPO-34 e MeAPSO-34
title Influ?ncia das raz?es molares SiO2/Al2O3 e Me/Al2O3 sobre as propriedades de peneiras moleculares tipo SAPO-34 e MeAPSO-34
spellingShingle Influ?ncia das raz?es molares SiO2/Al2O3 e Me/Al2O3 sobre as propriedades de peneiras moleculares tipo SAPO-34 e MeAPSO-34
Carvalhal, Carlos Henrique de Melo
Cat?ilse
Peneiras moleculares
Olefinas
Metanol
Engenharia Qu?mica
title_short Influ?ncia das raz?es molares SiO2/Al2O3 e Me/Al2O3 sobre as propriedades de peneiras moleculares tipo SAPO-34 e MeAPSO-34
title_full Influ?ncia das raz?es molares SiO2/Al2O3 e Me/Al2O3 sobre as propriedades de peneiras moleculares tipo SAPO-34 e MeAPSO-34
title_fullStr Influ?ncia das raz?es molares SiO2/Al2O3 e Me/Al2O3 sobre as propriedades de peneiras moleculares tipo SAPO-34 e MeAPSO-34
title_full_unstemmed Influ?ncia das raz?es molares SiO2/Al2O3 e Me/Al2O3 sobre as propriedades de peneiras moleculares tipo SAPO-34 e MeAPSO-34
title_sort Influ?ncia das raz?es molares SiO2/Al2O3 e Me/Al2O3 sobre as propriedades de peneiras moleculares tipo SAPO-34 e MeAPSO-34
author Carvalhal, Carlos Henrique de Melo
author_facet Carvalhal, Carlos Henrique de Melo
author_role author
dc.contributor.advisor1.fl_str_mv Fernandes, Lindoval Domiciano
dc.contributor.advisor1ID.fl_str_mv 837.359.297-15
dc.contributor.referee1.fl_str_mv Fernandes, Lindoval Domiciano
dc.contributor.referee2.fl_str_mv Rodrigues, Alexandre Carlos Camacho
dc.contributor.referee3.fl_str_mv Martins, Renata Luz
dc.contributor.authorID.fl_str_mv 098.172.197-47
dc.contributor.authorLattes.fl_str_mv http://lattes.cnpq.br/2541848532414393
dc.contributor.author.fl_str_mv Carvalhal, Carlos Henrique de Melo
contributor_str_mv Fernandes, Lindoval Domiciano
Fernandes, Lindoval Domiciano
Rodrigues, Alexandre Carlos Camacho
Martins, Renata Luz
dc.subject.por.fl_str_mv Cat?ilse
Peneiras moleculares
Olefinas
Metanol
topic Cat?ilse
Peneiras moleculares
Olefinas
Metanol
Engenharia Qu?mica
dc.subject.cnpq.fl_str_mv Engenharia Qu?mica
description The molecular SAPO-34 was synthesized by hydrothermal crystallization method using 4 different values for the molar ratio SiO2/Al2O3 at 3 different reaction times (24h, 48h and 120). The molecular MeAPSO-34 was synthesized by hydrothermal crystallization method using two different metals, niquel and cobalt, using 5 molar ratio Me/Al2O3 different (0.0; 0.01; 0.02; 0.03 and 0.04 ). All samples of SAPO-34 and MeAPSO-34 obtained were characterized by X-ray diffraction, nitrogen adsorption, ammonia temperature programmed desorption and scanning electron microscopy. The analysis of X-ray diffraction confirmed the achievement of the CHA structure type in all cases. By nitrogen adsorption specific area were obtained, and values of specific micropore volume compatible with the expected structure (CHA). It was also observed that the acidity of the samples strongly depends on its chemical composition.
publishDate 2015
dc.date.issued.fl_str_mv 2015-08-19
dc.date.accessioned.fl_str_mv 2019-09-12T19:39:23Z
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dc.identifier.citation.fl_str_mv CARVALHAL, Carlos Henrique de Melo. Influ?ncia das raz?es molares SiO2/Al2O3 e Me/Al2O3 sobre as propriedades de peneiras moleculares tipo SAPO-34 e MeAPSO-34. 2015. 60 f. Disserta??o (Mestrado em Engenharia Qu?mica). Instituto de Tecnologia, Universidade Federal Rural do Rio de Janeiro, Serop?dica, RJ, 2015.
dc.identifier.uri.fl_str_mv https://tede.ufrrj.br/jspui/handle/jspui/2889
identifier_str_mv CARVALHAL, Carlos Henrique de Melo. Influ?ncia das raz?es molares SiO2/Al2O3 e Me/Al2O3 sobre as propriedades de peneiras moleculares tipo SAPO-34 e MeAPSO-34. 2015. 60 f. Disserta??o (Mestrado em Engenharia Qu?mica). Instituto de Tecnologia, Universidade Federal Rural do Rio de Janeiro, Serop?dica, RJ, 2015.
url https://tede.ufrrj.br/jspui/handle/jspui/2889
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