Artículo
A CFD study of an annular pilot plant reactor for Paracetamol photo-Fenton degradation
Venier, César Martín
; Conte, Leandro Oscar
; Pérez Moya, Monserrat; Graells, Moisés; Nigro, Norberto Marcelo
; Alfano, Orlando Mario
Fecha de publicación:
04/2021
Editorial:
Elsevier Science SA
Revista:
Chemical Engineering Journal
ISSN:
1385-8947
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
This work studies in detail the photo-Fenton degradation process of Paracetamol (PCT) on an annular pilot-plant reactor using Computational Fluid Dynamics (CFD). A cylindrical lamp emission model was originally implemented over the structure of the OpenFOAM(R) platform and a multicomponent reaction mixture model was used to compute the temporal evolution of the different species at each point of the reactor. Once the proposed model was experimentally validated, the influence of different operating conditions (i.e. different strategies for hydrogen peroxide (H2O2) dosage, use of low recirculation flow rates (Qr), and a completely uncovered lamp setup) was studied. The results of the analysis showed that a double addition of H2O2 (50% before the tank and 50% before the reactor) significantly reduces the reaction times of the process. Moreover, the overall PCT degradation rate does not change when Qr is increased, thus allowing the system to be operated with a recirculation flow three times lower than that the one used in the experiments. Thereby, the developed model allows identifying the reaction conditions that maximize the overall PCT conversion, making efficient use of H2O2 (main chemical reagent) and reducing the electrical energy consumption (recirculation flow) by operating the system under conditions present in large-scale photochemical reactors.
Palabras clave:
OPENFOAM
,
PARACETAMOL
,
PHOTO-FENTON
,
PILOT-PLANT REACTOR
,
RADIATION MODEL
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Identificadores
Colecciones
Articulos(CIMEC)
Articulos de CENTRO DE INVESTIGACION DE METODOS COMPUTACIONALES
Articulos de CENTRO DE INVESTIGACION DE METODOS COMPUTACIONALES
Citación
Venier, César Martín; Conte, Leandro Oscar; Pérez Moya, Monserrat; Graells, Moisés; Nigro, Norberto Marcelo; et al.; A CFD study of an annular pilot plant reactor for Paracetamol photo-Fenton degradation; Elsevier Science SA; Chemical Engineering Journal; 410; 128246; 4-2021; 1-12
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