Publication:
Partitioning of a wide bubbling fluidized bed with vertical internals to improve local mixing and bed material circulation

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dc.affiliation.dptoUC3M. Departamento de Ingeniería Térmica y de Fluidoses
dc.affiliation.grupoinvUC3M. Grupo de Investigación: Ingeniería de Sistemas Energéticoses
dc.affiliation.grupoinvUC3M. Grupo de Investigación: Tecnologías Apropiadas para el Desarrollo Sosteniblees
dc.contributor.authorSoria Verdugo, Antonio
dc.contributor.authorCano Pleite, Eduardo
dc.contributor.authorPanahi, Aidin
dc.contributor.authorGhoniem, Ahmed F.
dc.contributor.funderEuropean Commissionen
dc.contributor.funderMinisterio de Educación, Cultura y Deporte (España)es
dc.contributor.funderUniversidad Carlos III de Madrides
dc.date.accessioned2023-09-29T07:41:55Z
dc.date.available2023-09-29T07:41:55Z
dc.date.issued2022-08-01
dc.description.abstractIndustrial scale fluidized bed reactors are characterized by limited mixing rates, either local or global, especially when using low-pressure drop gas distributors to reduce operational costs. In this work, partitioning of wide beds using vertical internals is proposed as an effective technique to improve local mixing in large reactors, i.e., mixing in specific zones of the bed. The effect of the vertical internals height on local solids mixing within partitions was experimentally evaluated in a pseudo-2D bed by analyzing the velocity and flow structure of the solids and the circulation time within individual partitions. In the presence of internals, global mixing, i.e., mixing between neighboring partitions and across the entire reactor, may be reduced as vertical internals compartmentalize the bed. Thus, the effect of the internals height on global mixing was also quantified while using bed materials with the same properties, but differing in color, in the different partitions, and analyzing the time evolution of the concentration of solids. Furthermore, the effect of internals on bubbles was also evaluated for different internal heights. It was found that internals with a height between the gulf-stream height and the fixed bed height promote the appearance of vortex pair structures in each partition of the wide bed. These structures substantially improve local mixing within each partition, while global mixing between partitions is practically unaffected by the presence of these short internals.en
dc.description.sponsorshipThe research that led to this publication was conducted with the support of a US-Spain Fulbright grant co-sponsored by the Spanish Ministry of Universities ("Ministerio de Educación, Cultura y Deporte en el marco del Programa Estatal de Promoción del Talento y su Empleabilidad en I+D+i, Subprograma Estatal de Movilidad, del Plan Estatal de I+D+I"). The authors acknowledge the financial support by the Foundation Seed Fund MIT - Spain "la Caixa". Eduardo Cano-Pleite also acknowledges support from the CONEX-Plus program funded by Universidad Carlos III de Madrid and the European Union's Horizon 2020 program under the Marie Sklodowska-Curie grant agreement No. 801538.en
dc.format.extent13es
dc.identifier.bibliographicCitationSoria-Verdugo, A., Cano-Pleite, E., Panahi, A., & Ghoniem, A. F. (2022). Partitioning of a wide bubbling fluidized bed with vertical internals to improve local mixing and bed material circulation. Powder Technology, 408, 117771.en
dc.identifier.issn0032-5910
dc.identifier.publicationfirstpage1es
dc.identifier.publicationissue117771es
dc.identifier.publicationlastpage13es
dc.identifier.publicationtitlePowder Technologyen
dc.identifier.publicationvolume408es
dc.identifier.urihttps://hdl.handle.net/10016/38478
dc.identifier.uxxiAR/0000033396
dc.language.isoengen
dc.publisherElsevieren
dc.relation.projectIDAT-2022es
dc.relation.projectIDinfo:eu-repo/grantAgreement/EC/H2020/801538es
dc.rights© 2022 The Authors. Published by Elsevier B.V.en
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España*
dc.rights.accessRightsopen accessen
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/*
dc.subject.ecienciaFísicaes
dc.subject.ecienciaIngeniería Industriales
dc.subject.ecienciaIngeniería Mecánicaes
dc.subject.ecienciaMaterialeses
dc.subject.ecienciaQuímicaes
dc.subject.otherBubbling fluidized beden
dc.subject.otherGlobal mixingen
dc.subject.otherLocal mixingen
dc.subject.otherVertical internalsen
dc.titlePartitioning of a wide bubbling fluidized bed with vertical internals to improve local mixing and bed material circulationen
dc.typeresearch article*
dc.type.hasVersionVoR*
dspace.entity.typePublication
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