Implications of Co-Feeding Water on the Growth Mechanisms of Retained Species on a SAPO-18 Catalyst during the Methanol-to-Olefins Reaction
dc.contributor.author | Valecillos Díaz, José del Rosario | |
dc.contributor.author | Hita del Olmo, Idoia | |
dc.contributor.author | Sastre, Enrique | |
dc.contributor.author | Aguayo Urquijo, Andrés Tomás | |
dc.contributor.author | Castaño Sánchez, Pedro | |
dc.date.accessioned | 2022-01-17T13:00:12Z | |
dc.date.available | 2022-01-17T13:00:12Z | |
dc.date.issued | 2021-07-07 | |
dc.identifier.citation | Chemcatchem 13(13) : 3140-3154 (2021) | es_ES |
dc.identifier.issn | 1867-3880 | |
dc.identifier.issn | 1867-3899 | |
dc.identifier.uri | http://hdl.handle.net/10810/55019 | |
dc.description.abstract | The dynamics of retained and deactivating species in a SAPO-18 catalyst during the methanol-to-olefins reaction have been followed using a combination of ex-situ and in-situ techniques in differential and integral reactors.The retained species were analyzed using extraction, in-situ FTIR and in-situ UV-vis spectroscopies combined with online product analysis (gas chromatography and mass spectrometry). The composition of the extracted soluble species was determined using gas chromatography-mass spectrometry and that of the insoluble species using high-resolution mass spectrometry. We observe a decrease in the formation and degradation rates of retained species when co-feeding water, whereas the extent of the decreases is the same across the entire spectrum of retained molecules. This indicates that co-feeding water unselectively quenches the formation of active and deactivating species. At the same time, the catalyst has an extended lifetime when co-feeding water due to the diffusion of species (particularly olefins) out of the SAPO-18 crystals, and subsequent growth of heavy polycyclic aromatic structures that imply less deactivation. These conclusions can be extrapolated to other MTO catalysts with relatively similar pore topology such as SAPO-34 or SSZ-13 structures. | es_ES |
dc.description.sponsorship | This work was possible thanks to the financial support of the Ministry of Economy, Industry and Competitiveness of the Spanish Government (Project CTQ2016-79646-P, co-founded with ERDF funds), the Basque Government (Project IT748-13, IT912-16) and the King Abdullah University of Science and Technology (KAUST). J.V. is thankful for his fellowship granted by the Ministry of Economy, Industry and Competitiveness of the Spanish Government (BES-2014-069980). The authors are thankful for technical and human support provided by IZO-SGI SGIker of UPV/EHU and European funding (ERDF and ESF). | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | Wiley | es_ES |
dc.relation | info:eu-repo/grantAgreement/MINECO/CTQ2016-79646-P | es_ES |
dc.relation | info:eu-repo/grantAgreement/MINECO/BES-2014-069980 | es_ES |
dc.rights | info:eu-repo/semantics/openAccess | es_ES |
dc.rights.uri | http://creativecommons.org/licenses/by-nc/3.0/es/ | * |
dc.subject | coke deactivation | es_ES |
dc.subject | high-resolution mass spectrometry | es_ES |
dc.subject | in-situ spectroscopy | es_ES |
dc.subject | methanol-to-hydrocarbons (MTH) reaction | es_ES |
dc.subject | SAPO-18 (AEI) zeolite | es_ES |
dc.subject | carbon bond formation | es_ES |
dc.subject | particle spectroscopy | es_ES |
dc.subject | hydrocarbons reaction | es_ES |
dc.subject | reaction temperature | es_ES |
dc.subject | molecular-sieves | es_ES |
dc.subject | conversion | es_ES |
dc.subject | deactivation | es_ES |
dc.subject | zeolite | es_ES |
dc.subject | transformation | es_ES |
dc.subject | selectivity | es_ES |
dc.title | Implications of Co-Feeding Water on the Growth Mechanisms of Retained Species on a SAPO-18 Catalyst during the Methanol-to-Olefins Reaction | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.rights.holder | 2021 The Authors.ChemCatChem published by Wiley-VCH GmbH.This is an open accessarticleunderthe terms of the CreativeCommons Attribution Non-Commercial License,which permits use, distributionand reproductionin any medium,provided the original work is properly cited and is not used for commercial purposes. | es_ES |
dc.rights.holder | Atribución-NoComercial 3.0 España | * |
dc.relation.publisherversion | https://chemistry-europe.onlinelibrary.wiley.com/doi/10.1002/cctc.202100124 | es_ES |
dc.identifier.doi | 10.1002/cctc.202100124 | |
dc.departamentoes | Ingeniería química | es_ES |
dc.departamentoeu | Ingeniaritza kimikoa | es_ES |
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Except where otherwise noted, this item's license is described as 2021 The Authors.ChemCatChem published by Wiley-VCH GmbH.This is an open accessarticleunderthe terms of the CreativeCommons Attribution Non-Commercial License,which permits use, distributionand reproductionin any medium,provided the original work is properly cited and is not used for commercial purposes.