Toda-Calderón, J.; Corma Canós, A.; Sastre Navarro, GI. (2016). Diffusion of Trimethylbenzenes and Xylenes in Zeolites with 12-and 10-Ring Channels as Catalyst for Toluene-Trimethylbenzene Transalkylation. Journal of Physical Chemistry C. 120(30):16668-16680. https://doi.org/10.1021/acs.jpcc.6b03806
Por favor, use este identificador para citar o enlazar este ítem: http://hdl.handle.net/10251/81558
Title:
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Diffusion of Trimethylbenzenes and Xylenes in Zeolites with 12-and 10-Ring Channels as Catalyst for Toluene-Trimethylbenzene Transalkylation
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Author:
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Toda-Calderón, Jordi
Corma Canós, Avelino
Sastre Navarro, German Ignacio
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UPV Unit:
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Universitat Politècnica de València. Escuela Técnica Superior de Ingenieros Industriales - Escola Tècnica Superior d'Enginyers Industrials
Universitat Politècnica de València. Instituto Universitario Mixto de Tecnología Química - Institut Universitari Mixt de Tecnologia Química
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Issued date:
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Abstract:
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A molecular dynamics study of the diffusion of trimethylbenzene (TMB) and xylene molecules involved in toluene and TMB transalkylation reaction has been performed over 6 different pure-silica zeolites, containing 10- and ...[+]
A molecular dynamics study of the diffusion of trimethylbenzene (TMB) and xylene molecules involved in toluene and TMB transalkylation reaction has been performed over 6 different pure-silica zeolites, containing 10- and 12-ring channels: BOG, MSE, IWR, SFS, SOF, and UWY. The shape selective properties of these six frameworks have been tested using two different loadings: one loading characteristic of the early stage and another of the late stage of the reaction. The collected data explains the diffusion behavior of these molecules in the zeolite frameworks and allows researchers to obtain trends and also rationalize their performance as candidates for the selective production of p-xylene during transalkylation of toluene and TMB. UWY appears a promising zeolite that allows the reaction of the TMBs in the 12-ring channels, is able to host the transition states, and favors the preferential diffusion of p-xylene in the 10-ring channels.
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Subjects:
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MOLECULAR-DYNAMICS SIMULATION
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LARGE-PORE ZEOLITES
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INTERATOMIC POTENTIALS
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SELECTIVE ALKYLATION
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CRYSTAL-STRUCTURE
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MSE TOPOLOGY
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BENZENE
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ZSM-5
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1,2,4-TRIMETHYLBENZENE
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DISPROPORTIONATION
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Copyrigths:
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Cerrado |
Source:
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Journal of Physical Chemistry C. (issn:
1932-7447
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DOI:
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10.1021/acs.jpcc.6b03806
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Publisher:
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American Chemical Society
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Publisher version:
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http://dx.doi.org/10.1021/acs.jpcc.6b03806
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Project ID:
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info:eu-repo/grantAgreement/MINECO//CTQ2015-70126-R/ES/DISEÑO DE CATALIZADORES ZEOLITICOS PARA LA OPTIMIZACION DE PROCESOS QUIMICOS DE INTERES INDUSTRIAL/
info:eu-repo/grantAgreement/MINECO//SEV-2012-0267/
info:eu-repo/grantAgreement/MINECO//SVP-2013-067662/ES/SVP-2013-067662/
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Thanks:
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We thank Ministerio de Economia y Competitividad (MINECO) of Spain for funding through Project CTQ2015-70126-R, and the excellence programme Severo Ochoa (SEV-2012-0267). J.T. thanks MINECO of Spain for the SVP-2013-067662 ...[+]
We thank Ministerio de Economia y Competitividad (MINECO) of Spain for funding through Project CTQ2015-70126-R, and the excellence programme Severo Ochoa (SEV-2012-0267). J.T. thanks MINECO of Spain for the SVP-2013-067662 Ph.D. scholarship. We thank ASIC-UPV and Paco Rosich for computational facilities and computational support.
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Type:
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Artículo
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