Nature and Location of Carbonaceous Species in a Composite HZSM-5 Zeolite Catalyst during the Conversion of Dimethyl Ether into Light Olefins

The deactivation of a composite catalyst based on HZSM-5 zeolite (agglomerated in a matrix using boehmite as a binder) has been studied during the transformation of dimethyl ether into light olefins. The location of the trapped/retained species (on the zeolite or on the matrix) has been analyzed by...

Descripción completa

Detalles Bibliográficos
Autores: Ibáñez, María, Pérez Uriarte, Paula, Sánchez-Contador Uría, Miguel, Cordero Lanzac, Tomás, Aguayo Urquijo, Andrés Tomás, Bilbao Elorriaga, Javier, Castaño Sánchez, Pedro
Tipo de recurso: artículo
Fecha de publicación:2017
País:España
Institución:Universidad del País Vasco
Repositorio:Addi. Archivo Digital para la Docencia y la Investigación
OAI Identifier:oai:addi.ehu.eus:10810/27498
Acceso en línea:http://hdl.handle.net/10810/27498
Access Level:acceso abierto
Palabra clave:ZSM-5 (MFI) zeolite
dimethyl ether (DME)
light olefins
propylene
coke
methanol-to-hydrocarbons
coke formation
enhanced stability
transformation
deactivation
cracking
acidity
selectivity
id ES_6b17c04d549932bf8e5930728fa8f931
oai_identifier_str oai:addi.ehu.eus:10810/27498
network_acronym_str ES
network_name_str España
repository_id_str
spelling Nature and Location of Carbonaceous Species in a Composite HZSM-5 Zeolite Catalyst during the Conversion of Dimethyl Ether into Light OlefinsIbáñez, MaríaPérez Uriarte, PaulaSánchez-Contador Uría, MiguelCordero Lanzac, TomásAguayo Urquijo, Andrés TomásBilbao Elorriaga, JavierCastaño Sánchez, PedroZSM-5 (MFI) zeolitedimethyl ether (DME)light olefinspropylenecokemethanol-to-hydrocarbonscoke formationenhanced stabilitytransformationdeactivationcrackingacidityselectivityThe deactivation of a composite catalyst based on HZSM-5 zeolite (agglomerated in a matrix using boehmite as a binder) has been studied during the transformation of dimethyl ether into light olefins. The location of the trapped/retained species (on the zeolite or on the matrix) has been analyzed by comparing the properties of the fresh and deactivated catalyst after runs at different temperatures, while the nature of those species has been studied using different spectroscopic and thermogravimetric techniques. The reaction occurs on the strongest acid sites of the zeolite micropores through olefins and alkyl-benzenes as intermediates. These species also condensate into bulkier structures (polyaromatics named as coke), particularly at higher temperatures and within the mesoand macropores of the matrix. The critical roles of the matrix and water in the reaction medium have been proved: both attenuating the effect of coke deposition.The financial support of this work was undertaken by the Ministry of Economy and Competitiveness of the Spanish Government, some cofounded with ERDF funds (Project CTQ2013-46172-P, CTQ2013-46173-R and CTQ2016-79646-P projects), by the Basque Government (Project IT748-13) and by the University of the Basque Country (UFI 11/39). M. Ibafiez is grateful for the postgraduate grant from the University of the Basque Country (No. UPV/EHU2016).MDPI201820182017info:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10810/27498reponame:Addi. Archivo Digital para la Docencia y la Investigacióninstname:Universidad del País VascoInglésinfo:eu-repo/grantAgreement/MINECO//http://www.mdpi.com/2073-4344/7/9/254info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by/3.0/es/The financial support of this work was undertaken by the Ministry of Economy and Competitiveness of the Spanish Government, some cofounded with ERDF funds (Project CTQ2013-46172-P, CTQ2013-46173-R and CTQ2016-79646-P projects), by the Basque Government (Project IT748-13) and by the University of the Basque Country (UFI 11/39). M. Ibafiez is grateful for the postgraduate grant from the University of the Basque Country (No. UPV/EHU2016).Atribución 3.0 Españaoai:addi.ehu.eus:10810/274982026-06-18T09:23:17Z
dc.title.none.fl_str_mv Nature and Location of Carbonaceous Species in a Composite HZSM-5 Zeolite Catalyst during the Conversion of Dimethyl Ether into Light Olefins
title Nature and Location of Carbonaceous Species in a Composite HZSM-5 Zeolite Catalyst during the Conversion of Dimethyl Ether into Light Olefins
spellingShingle Nature and Location of Carbonaceous Species in a Composite HZSM-5 Zeolite Catalyst during the Conversion of Dimethyl Ether into Light Olefins
Ibáñez, María
ZSM-5 (MFI) zeolite
dimethyl ether (DME)
light olefins
propylene
coke
methanol-to-hydrocarbons
coke formation
enhanced stability
transformation
deactivation
cracking
acidity
selectivity
title_short Nature and Location of Carbonaceous Species in a Composite HZSM-5 Zeolite Catalyst during the Conversion of Dimethyl Ether into Light Olefins
title_full Nature and Location of Carbonaceous Species in a Composite HZSM-5 Zeolite Catalyst during the Conversion of Dimethyl Ether into Light Olefins
title_fullStr Nature and Location of Carbonaceous Species in a Composite HZSM-5 Zeolite Catalyst during the Conversion of Dimethyl Ether into Light Olefins
title_full_unstemmed Nature and Location of Carbonaceous Species in a Composite HZSM-5 Zeolite Catalyst during the Conversion of Dimethyl Ether into Light Olefins
title_sort Nature and Location of Carbonaceous Species in a Composite HZSM-5 Zeolite Catalyst during the Conversion of Dimethyl Ether into Light Olefins
dc.creator.none.fl_str_mv Ibáñez, María
Pérez Uriarte, Paula
Sánchez-Contador Uría, Miguel
Cordero Lanzac, Tomás
Aguayo Urquijo, Andrés Tomás
Bilbao Elorriaga, Javier
Castaño Sánchez, Pedro
author Ibáñez, María
author_facet Ibáñez, María
Pérez Uriarte, Paula
Sánchez-Contador Uría, Miguel
Cordero Lanzac, Tomás
Aguayo Urquijo, Andrés Tomás
Bilbao Elorriaga, Javier
Castaño Sánchez, Pedro
author_role author
author2 Pérez Uriarte, Paula
Sánchez-Contador Uría, Miguel
Cordero Lanzac, Tomás
Aguayo Urquijo, Andrés Tomás
Bilbao Elorriaga, Javier
Castaño Sánchez, Pedro
author2_role author
author
author
author
author
author
dc.subject.none.fl_str_mv ZSM-5 (MFI) zeolite
dimethyl ether (DME)
light olefins
propylene
coke
methanol-to-hydrocarbons
coke formation
enhanced stability
transformation
deactivation
cracking
acidity
selectivity
topic ZSM-5 (MFI) zeolite
dimethyl ether (DME)
light olefins
propylene
coke
methanol-to-hydrocarbons
coke formation
enhanced stability
transformation
deactivation
cracking
acidity
selectivity
description The deactivation of a composite catalyst based on HZSM-5 zeolite (agglomerated in a matrix using boehmite as a binder) has been studied during the transformation of dimethyl ether into light olefins. The location of the trapped/retained species (on the zeolite or on the matrix) has been analyzed by comparing the properties of the fresh and deactivated catalyst after runs at different temperatures, while the nature of those species has been studied using different spectroscopic and thermogravimetric techniques. The reaction occurs on the strongest acid sites of the zeolite micropores through olefins and alkyl-benzenes as intermediates. These species also condensate into bulkier structures (polyaromatics named as coke), particularly at higher temperatures and within the mesoand macropores of the matrix. The critical roles of the matrix and water in the reaction medium have been proved: both attenuating the effect of coke deposition.
publishDate 2017
dc.date.none.fl_str_mv 2017
2018
2018
dc.type.none.fl_str_mv info:eu-repo/semantics/article
format article
dc.identifier.none.fl_str_mv http://hdl.handle.net/10810/27498
url http://hdl.handle.net/10810/27498
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.relation.none.fl_str_mv info:eu-repo/grantAgreement/MINECO//
http://www.mdpi.com/2073-4344/7/9/254
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by/3.0/es/
Atribución 3.0 España
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by/3.0/es/
Atribución 3.0 España
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv MDPI
publisher.none.fl_str_mv MDPI
dc.source.none.fl_str_mv reponame:Addi. Archivo Digital para la Docencia y la Investigación
instname:Universidad del País Vasco
instname_str Universidad del País Vasco
reponame_str Addi. Archivo Digital para la Docencia y la Investigación
collection Addi. Archivo Digital para la Docencia y la Investigación
repository.name.fl_str_mv
repository.mail.fl_str_mv
_version_ 1869410159401369600
score 15,301603

Similares en LA Referencia