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Minimizing rare earth content of FCC catalysts: Understanding the fundamentals on combined P-La stabilization

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Minimizing rare earth content of FCC catalysts: Understanding the fundamentals on combined P-La stabilization

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dc.contributor.author Martínez, Cristina es_ES
dc.contributor.author Vidal Moya, José Alejandro es_ES
dc.contributor.author Yilmaz, Bilge es_ES
dc.contributor.author Kelkar, C.P. es_ES
dc.contributor.author Corma Canós, Avelino es_ES
dc.date.accessioned 2024-02-08T08:26:17Z
dc.date.available 2024-02-08T08:26:17Z
dc.date.issued 2023-06-01 es_ES
dc.identifier.issn 0920-5861 es_ES
dc.identifier.uri http://hdl.handle.net/10251/202422
dc.description.abstract [EN] Fluidized Catalytic cracking (FCC) is one of the main conversion processes in conventional refineries and employs a multicomponent catalyst with Y zeolite as the main source of activity and selectivity towards value added products. In order to meet the severe requirements of the FCC unit, the hydrothermal stability of this large pore zeolite is traditionally improved by means of controlled hydrothermal treatments that can be combined with acid washing cycles, with rare earth (RE) ion exchange or with a combination of both. Phosphorus has also been described as a hydrothermal stabilization element. Although most of the studies are based on ZSM-5 zeolites, a new Y zeolite containing FCC catalyst, Phinesse(TM), was developed recently. This catalyst, based on the partial substitution of RE by P allowed obtaining the same activity and the same yields to the main products as its conventional RE stabilized counterpart in the catalytic cracking of a vacuum gas oil (VGO). In this work, we present a systematic study where the hydrothermal stability of P- and La-free USYs with different dealumination degrees is compared with that of the corresponding USYs containing P or La alone or a combination of both stabilizing elements. The samples have been thoroughly characterized and their catalytic performance has been tested in a MAT unit. According to the results obtained, when using RE alone, only high contents (> 3.5 wt% RE) are able to stabilize the catalysts towards steaming under severe conditions (100% steam, 750 oC). However, lower RE ( wt%) can lead to similar hydrothermal stabilization when combined with intermediate phosphorus contents (similar to 1.0 wt%). The results obtained provide the bases for understanding the reasons behind the benefits of this combined P-La stabilization observed for the commercial PhinesseTM catalyst as compared to a high REO catalyst. es_ES
dc.description.sponsorship This work has been supported by BASF Corporation, by the Spanish Government through PID2021-122755OB-I00 and by the GVA through AICO/2021/201. Financial support by the Spanish Ministry of Science and Innovation (CEX2021-001230-S grant funded by MCIN/AEI/10.13039/501100011033) is gratefully acknowledged. The authors thank Eva Briz for technical assistance and the Electron Microscopy Service of the UPV for their help in sample characterization. es_ES
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation.ispartof Catalysis Today es_ES
dc.rights Reconocimiento - No comercial - Sin obra derivada (by-nc-nd) es_ES
dc.subject Catalytic cracking es_ES
dc.subject Zeolite USY es_ES
dc.subject Hydrothermal stabilization es_ES
dc.subject Phosphorus es_ES
dc.subject Rare earth es_ES
dc.title Minimizing rare earth content of FCC catalysts: Understanding the fundamentals on combined P-La stabilization es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.cattod.2023.114123 es_ES
dc.relation.projectID info:eu-repo/grantAgreement/Ministerio de Ciencia e Innovación//PID2021-122755OB-I00//CATALIZADORES MULTI-FUNCIONALES CON APLICACIÓN EN PROCESOS DE INTERÉS MEDIOAMBIENTAL E INDUSTRIAL/ es_ES
dc.relation.projectID info:eu-repo/grantAgreement/GVA//AICO%2F2021%2F201//TRANSFORMACIÓN EFICIENTE DE ALCANOS LIGEROS EN PRODUCTOS DE INTERÉS/ es_ES
dc.relation.projectID info:eu-repo/grantAgreement/MICINN//CEX2021-001230-S/ es_ES
dc.rights.accessRights Abierto es_ES
dc.contributor.affiliation Universitat Politècnica de València. Instituto Universitario Mixto de Tecnología Química - Institut Universitari Mixt de Tecnologia Química es_ES
dc.description.bibliographicCitation Martínez, C.; Vidal Moya, JA.; Yilmaz, B.; Kelkar, C.; Corma Canós, A. (2023). Minimizing rare earth content of FCC catalysts: Understanding the fundamentals on combined P-La stabilization. Catalysis Today. 418:1-14. https://doi.org/10.1016/j.cattod.2023.114123 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion https://doi.org/10.1016/j.cattod.2023.114123 es_ES
dc.description.upvformatpinicio 1 es_ES
dc.description.upvformatpfin 14 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 418 es_ES
dc.relation.pasarela S\508510 es_ES
dc.contributor.funder Generalitat Valenciana es_ES
dc.contributor.funder Ministerio de Ciencia e Innovación es_ES


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