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dc.contributor.author
Rodriguez, Maria Laura
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dc.contributor.author
Cadus, Luis Eduardo
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dc.contributor.author
Borio, Daniel Oscar
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dc.date.available
2019-10-18T21:59:47Z
dc.date.issued
2019-12
dc.identifier.citation
Rodriguez, Maria Laura; Cadus, Luis Eduardo; Borio, Daniel Oscar; Effect of heat losses on monolithic reactors for VOC abatement; Elsevier Science Sa; Chemical Engineering Journal; 377; 12-2019
dc.identifier.issn
1385-8947
dc.identifier.uri
http://hdl.handle.net/11336/86522
dc.description.abstract
In this contribution a theoretical study of the thermal effects due to heat losses on monolithic reactors for the catalytic combustion of VOC is carried out. To describe the performance of the reactor under steady-state non-isothermal non-adiabatic conditions a heterogeneous 1D Multiple Channel Model is considered, where the monolith is represented by several zones in the form of square concentric rings, each one represented by a square section single channel. Internal and external mass transfer diffusional limitations are taken into account as well as external heat transfer resistance. Heat transfer by conduction through the solid (cordierite) is considered along the cross-section coordinate of the monolith, i.e., from the central zones to peripheral zones at lower temperatures. Although an efficient thermal insulation is selected, the channels of the periphery can operate several degrees colder that the channels of the central zones, these lower temperatures are associated to non-complete VOC conversions, which are emitted into the atmosphere. Studies of parametric sensitivity with respect of inlet temperature reveals that heat losses become more relevant when the reactor is operating near the Emission Limit Value. In relation to design considerations, as the reactor scale decreases and the external area/volume ratio increases, the effect of heat losses on VOC emissions is magnified. The inlet temperature set point should be high enough to prevent high VOC emissions due to lower inlet VOC concentration in a heat loss scenario. This results in higher energetic requirements to ensure VOC complete conversion. To face the reactor performance issues related with heat losses to the environment, optimized designs were proposed aiming to increase the residence times in peripheral zones, which effectively enhance the reactor performance.
dc.format
application/pdf
dc.language.iso
eng
dc.publisher
Elsevier Science Sa
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dc.rights
info:eu-repo/semantics/restrictedAccess
dc.rights.uri
https://creativecommons.org/licenses/by-nc-sa/2.5/ar/
dc.subject
CATALYTIC COMBUSTION
dc.subject
DIFFUSIONAL RESISTANCES
dc.subject
HEAT LOSSES
dc.subject
MONOLITHIC REACTOR
dc.subject
MULTIPLE CHANNEL MODEL
dc.subject
VOC
dc.subject.classification
Ingeniería Química
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dc.subject.classification
Ingeniería Química
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dc.subject.classification
INGENIERÍAS Y TECNOLOGÍAS
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dc.title
Effect of heat losses on monolithic reactors for VOC abatement
dc.type
info:eu-repo/semantics/article
dc.type
info:ar-repo/semantics/artículo
dc.type
info:eu-repo/semantics/publishedVersion
dc.date.updated
2019-10-15T17:31:19Z
dc.journal.volume
377
dc.journal.pais
Países Bajos
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dc.journal.ciudad
Amsterdam
dc.description.fil
Fil: Rodriguez, Maria Laura. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Investigaciones en Tecnología Química. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Instituto de Investigaciones en Tecnología Química; Argentina
dc.description.fil
Fil: Cadus, Luis Eduardo. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - San Luis. Instituto de Investigaciones en Tecnología Química. Universidad Nacional de San Luis. Facultad de Química, Bioquímica y Farmacia. Instituto de Investigaciones en Tecnología Química; Argentina
dc.description.fil
Fil: Borio, Daniel Oscar. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Bahía Blanca. Planta Piloto de Ingeniería Química. Universidad Nacional del Sur. Planta Piloto de Ingeniería Química; Argentina
dc.journal.title
Chemical Engineering Journal
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dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/doi/http://dx.doi.org/10.1016/j.cej.2018.10.076
dc.relation.alternativeid
info:eu-repo/semantics/altIdentifier/url/https://www.sciencedirect.com/science/article/pii/S1385894718320254
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