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Structure-reactivity relationship for aromatics transalkylation and isomerization process with TNU-9, MCM-22 and ZSM-5 zeolites, and their industrial implications

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Structure-reactivity relationship for aromatics transalkylation and isomerization process with TNU-9, MCM-22 and ZSM-5 zeolites, and their industrial implications

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dc.contributor.author Portilla Ovejero, Mª Teresa es_ES
dc.contributor.author Llopis Alonso, F.J. es_ES
dc.contributor.author Martínez, Cristina es_ES
dc.contributor.author Valencia Valencia, Susana es_ES
dc.contributor.author Corma Canós, Avelino es_ES
dc.date.accessioned 2015-06-19T11:36:44Z
dc.date.available 2015-06-19T11:36:44Z
dc.date.issued 2011-02-15
dc.identifier.issn 0926-860X
dc.identifier.uri http://hdl.handle.net/10251/51961
dc.description.abstract [EN] TNU-9 is a medium pore zeolite with a complex tridimensional channel system. Its catalytic properties have been studied in some reactions that involve the BTX fraction, such as benzene and toluene alkylation with methanol, ethanol or isopropanol. These reactions use in practice medium pore zeolites such as ZSM-5 (MFI) or MCM-22 (MWW), and the selectivities obtained with TNU-9 are compared and analyzed from the point of view of the zeolite structure and pore topology, as well as from its possible industrial application. For benzene alkylation to give ethylbenzene (EB), TNU-9 is an active and selective catalyst with selectivities to EB much higher than ZSM-5 and close to those of the industrially relevant MCM-22. However, olefin oligomerization within the pores of TNU-9 occurs in a larger extension than with MCM-22, leading not only to some lower selectivity, but also to a faster catalyst deactivation. In the case of cumene formation, again the selectivity of TNU-9 to the desired product is higher than ZSM-5 but lower than MCM-22, owing to the formation of larger amounts of n-propylbenzene in the former as a result of its pore topology. Nevertheless, TNU-9 may be worth to be studied further for the disproportionation of toluene to give xylenes. In this case, its comparison with ZSM-5 appears of interest. By studying the alkylation of toluene with alcohols of different chain length, i.e. methanol, ethanol and isopropanol, it has been found that TNU-9 has an antagonistic behaviour, closer to ZSM-5 or MCM-22 depending on the activity or selectivity parameters considered that could be explained by its complex topology, formed by 10-ring tortuous channels with crosses as in ZSM-5, and large cavities as in MCM-22. (C) 2011 Elsevier B.V. All rights reserved. es_ES
dc.description.sponsorship The authors acknowledge financial support from Ministerio de Ciencia e Innovacion (projects Consolider-Ingenio 2010 MULTICAT and MAT2009-14528-C02-01) and Generalitat Valenciana (project PROMETEO), and M.T. Portilla gratefully acknowledges CSIC for JAE fellowship. en_EN
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation MICINN/MAT2009-14528-C02-01 es_ES
dc.relation.ispartof Applied Catalysis A: General es_ES
dc.rights Reserva de todos los derechos es_ES
dc.subject BTX aromatics es_ES
dc.subject TNU-9 zeolite es_ES
dc.subject Benzene alkylation es_ES
dc.subject Toluene alkylation es_ES
dc.subject.classification QUIMICA ORGANICA es_ES
dc.title Structure-reactivity relationship for aromatics transalkylation and isomerization process with TNU-9, MCM-22 and ZSM-5 zeolites, and their industrial implications es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.apcata.2010.12.009
dc.rights.accessRights Cerrado es_ES
dc.contributor.affiliation Universitat Politècnica de València. Instituto Universitario Mixto de Tecnología Química - Institut Universitari Mixt de Tecnologia Química es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Química - Departament de Química es_ES
dc.description.bibliographicCitation Portilla Ovejero, MT.; Llopis Alonso, F.; Martínez, C.; Valencia Valencia, S.; Corma Canós, A. (2011). Structure-reactivity relationship for aromatics transalkylation and isomerization process with TNU-9, MCM-22 and ZSM-5 zeolites, and their industrial implications. Applied Catalysis A: General. 393(1-2):257-268. doi:10.1016/j.apcata.2010.12.009 es_ES
dc.description.accrualMethod Senia es_ES
dc.relation.publisherversion http://dx.doi.org/10.1016/j.apcata.2010.12.009 es_ES
dc.description.upvformatpinicio 257 es_ES
dc.description.upvformatpfin 268 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 393 es_ES
dc.description.issue 1-2 es_ES
dc.relation.senia 39567
dc.contributor.funder Ministerio de Ciencia e Innovación (MICINN)
dc.contributor.funder Generalitat Valenciana (GV)
dc.contributor.funder Consejo Superior de Investigaciones Científicas (CSIC)


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