m -Cresol methylation: Role of internal and external acid sites in the product distribution

Autores
Acevedo, Mauro Dino; Montañez Valencia, Mardelly Kateryne; Okulik, Nora Beatriz; Sad, Maria Eugenia; Padro, Cristina
Año de publicación
2017
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
The effect of the porous structure and the role of internal and external acid sites in product distribution in gas-phase alkylation of m-cresol with methanol were studied on zeolites HBEA, HZSM5 and HMCM22. Catalysts were characterized by N2 physisorption and FTIR of adsorbed pyridine. Trimethylated product formation was inhibited in narrower pore size zeolites (HMCM22 and HZSM5) and a preferential selectivity to smallest dimethylphenol isomer (2,5-dimethylphenol) was observed. The selectivity to 2,5-dimethylphenol on HMCM22 reached a value of 82% after suppressing the acid sites of the external cavities and pore mouth using 2,4-dimethylquinoline, which is a basic molecule too bulky to diffuse through the narrow pores of these zeolites.
Fil: Acevedo, Mauro Dino. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Chaco Austral; Argentina
Fil: Montañez Valencia, Mardelly Kateryne. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; Argentina
Fil: Okulik, Nora Beatriz. Universidad Nacional del Chaco Austral; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Sad, Maria Eugenia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; Argentina
Fil: Padro, Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; Argentina
Materia
M-Cresol Alkylation
Shape Selectivity
Zeolites
Nivel de accesibilidad
acceso abierto
Condiciones de uso
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
Repositorio
CONICET Digital (CONICET)
Institución
Consejo Nacional de Investigaciones Científicas y Técnicas
OAI Identificador
oai:ri.conicet.gov.ar:11336/40711
Acceder
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network_acronym_str CONICETDig
repository_id_str 3498
network_name_str CONICET Digital (CONICET)
spelling m -Cresol methylation: Role of internal and external acid sites in the product distributionAcevedo, Mauro DinoMontañez Valencia, Mardelly KateryneOkulik, Nora BeatrizSad, Maria EugeniaPadro, CristinaM-Cresol AlkylationShape SelectivityZeoliteshttps://purl.org/becyt/ford/2.4https://purl.org/becyt/ford/2The effect of the porous structure and the role of internal and external acid sites in product distribution in gas-phase alkylation of m-cresol with methanol were studied on zeolites HBEA, HZSM5 and HMCM22. Catalysts were characterized by N2 physisorption and FTIR of adsorbed pyridine. Trimethylated product formation was inhibited in narrower pore size zeolites (HMCM22 and HZSM5) and a preferential selectivity to smallest dimethylphenol isomer (2,5-dimethylphenol) was observed. The selectivity to 2,5-dimethylphenol on HMCM22 reached a value of 82% after suppressing the acid sites of the external cavities and pore mouth using 2,4-dimethylquinoline, which is a basic molecule too bulky to diffuse through the narrow pores of these zeolites.Fil: Acevedo, Mauro Dino. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Chaco Austral; ArgentinaFil: Montañez Valencia, Mardelly Kateryne. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; ArgentinaFil: Okulik, Nora Beatriz. Universidad Nacional del Chaco Austral; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; ArgentinaFil: Sad, Maria Eugenia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; ArgentinaFil: Padro, Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; ArgentinaElsevier Science2017-03info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfapplication/pdfhttp://hdl.handle.net/11336/40711Acevedo, Mauro Dino; Montañez Valencia, Mardelly Kateryne; Okulik, Nora Beatriz; Sad, Maria Eugenia; Padro, Cristina; m -Cresol methylation: Role of internal and external acid sites in the product distribution; Elsevier Science; Catalysis Communications; 92; 3-2017; 10-141566-73671566-7367CONICET DigitalCONICETenginfo:eu-repo/semantics/altIdentifier/doi/10.1016/j.catcom.2016.12.025info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S1566736716304782?via%3Dihubinfo:eu-repo/semantics/openAccesshttps://creativecommons.org/licenses/by-nc-nd/2.5/ar/reponame:CONICET Digital (CONICET)instname:Consejo Nacional de Investigaciones Científicas y Técnicas2025-09-29T10:09:27Zoai:ri.conicet.gov.ar:11336/40711instacron:CONICETInstitucionalhttp://ri.conicet.gov.ar/Organismo científico-tecnológicoNo correspondehttp://ri.conicet.gov.ar/oai/requestdasensio@conicet.gov.ar; lcarlino@conicet.gov.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:34982025-09-29 10:09:27.875CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicasfalse
dc.title.none.fl_str_mv m -Cresol methylation: Role of internal and external acid sites in the product distribution
title m -Cresol methylation: Role of internal and external acid sites in the product distribution
spellingShingle m -Cresol methylation: Role of internal and external acid sites in the product distribution
Acevedo, Mauro Dino
M-Cresol Alkylation
Shape Selectivity
Zeolites
title_short m -Cresol methylation: Role of internal and external acid sites in the product distribution
title_full m -Cresol methylation: Role of internal and external acid sites in the product distribution
title_fullStr m -Cresol methylation: Role of internal and external acid sites in the product distribution
title_full_unstemmed m -Cresol methylation: Role of internal and external acid sites in the product distribution
title_sort m -Cresol methylation: Role of internal and external acid sites in the product distribution
dc.creator.none.fl_str_mv Acevedo, Mauro Dino
Montañez Valencia, Mardelly Kateryne
Okulik, Nora Beatriz
Sad, Maria Eugenia
Padro, Cristina
author Acevedo, Mauro Dino
author_facet Acevedo, Mauro Dino
Montañez Valencia, Mardelly Kateryne
Okulik, Nora Beatriz
Sad, Maria Eugenia
Padro, Cristina
author_role author
author2 Montañez Valencia, Mardelly Kateryne
Okulik, Nora Beatriz
Sad, Maria Eugenia
Padro, Cristina
author2_role author
author
author
author
dc.subject.none.fl_str_mv M-Cresol Alkylation
Shape Selectivity
Zeolites
topic M-Cresol Alkylation
Shape Selectivity
Zeolites
purl_subject.fl_str_mv https://purl.org/becyt/ford/2.4
https://purl.org/becyt/ford/2
dc.description.none.fl_txt_mv The effect of the porous structure and the role of internal and external acid sites in product distribution in gas-phase alkylation of m-cresol with methanol were studied on zeolites HBEA, HZSM5 and HMCM22. Catalysts were characterized by N2 physisorption and FTIR of adsorbed pyridine. Trimethylated product formation was inhibited in narrower pore size zeolites (HMCM22 and HZSM5) and a preferential selectivity to smallest dimethylphenol isomer (2,5-dimethylphenol) was observed. The selectivity to 2,5-dimethylphenol on HMCM22 reached a value of 82% after suppressing the acid sites of the external cavities and pore mouth using 2,4-dimethylquinoline, which is a basic molecule too bulky to diffuse through the narrow pores of these zeolites.
Fil: Acevedo, Mauro Dino. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina. Universidad Nacional del Chaco Austral; Argentina
Fil: Montañez Valencia, Mardelly Kateryne. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; Argentina
Fil: Okulik, Nora Beatriz. Universidad Nacional del Chaco Austral; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas; Argentina
Fil: Sad, Maria Eugenia. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; Argentina
Fil: Padro, Cristina. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica ; Argentina
description The effect of the porous structure and the role of internal and external acid sites in product distribution in gas-phase alkylation of m-cresol with methanol were studied on zeolites HBEA, HZSM5 and HMCM22. Catalysts were characterized by N2 physisorption and FTIR of adsorbed pyridine. Trimethylated product formation was inhibited in narrower pore size zeolites (HMCM22 and HZSM5) and a preferential selectivity to smallest dimethylphenol isomer (2,5-dimethylphenol) was observed. The selectivity to 2,5-dimethylphenol on HMCM22 reached a value of 82% after suppressing the acid sites of the external cavities and pore mouth using 2,4-dimethylquinoline, which is a basic molecule too bulky to diffuse through the narrow pores of these zeolites.
publishDate 2017
dc.date.none.fl_str_mv 2017-03
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/11336/40711
Acevedo, Mauro Dino; Montañez Valencia, Mardelly Kateryne; Okulik, Nora Beatriz; Sad, Maria Eugenia; Padro, Cristina; m -Cresol methylation: Role of internal and external acid sites in the product distribution; Elsevier Science; Catalysis Communications; 92; 3-2017; 10-14
1566-7367
1566-7367
CONICET Digital
CONICET
url http://hdl.handle.net/11336/40711
identifier_str_mv Acevedo, Mauro Dino; Montañez Valencia, Mardelly Kateryne; Okulik, Nora Beatriz; Sad, Maria Eugenia; Padro, Cristina; m -Cresol methylation: Role of internal and external acid sites in the product distribution; Elsevier Science; Catalysis Communications; 92; 3-2017; 10-14
1566-7367
CONICET Digital
CONICET
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/doi/10.1016/j.catcom.2016.12.025
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S1566736716304782?via%3Dihub
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
eu_rights_str_mv openAccess
rights_invalid_str_mv https://creativecommons.org/licenses/by-nc-nd/2.5/ar/
dc.format.none.fl_str_mv application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
application/pdf
dc.publisher.none.fl_str_mv Elsevier Science
publisher.none.fl_str_mv Elsevier Science
dc.source.none.fl_str_mv reponame:CONICET Digital (CONICET)
instname:Consejo Nacional de Investigaciones Científicas y Técnicas
reponame_str CONICET Digital (CONICET)
collection CONICET Digital (CONICET)
instname_str Consejo Nacional de Investigaciones Científicas y Técnicas
repository.name.fl_str_mv CONICET Digital (CONICET) - Consejo Nacional de Investigaciones Científicas y Técnicas
repository.mail.fl_str_mv dasensio@conicet.gov.ar; lcarlino@conicet.gov.ar
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score 13.070432

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