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A CFD study of an annular pilot plant reactor for Paracetamol photo-Fenton degradation

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Venier, Cesar M.
Conte, Leandro Oscar
Pérez Moya, MontserratMés informacióMés informacióMés informació
Graells Sobré, MoisèsMés informacióMés informacióMés informació
Nigro, Norberto
Alfano, Orlando M.
Document typeArticle
Defense date2021-04-15
PublisherElsevier
Rights accessOpen Access
Attribution-NonCommercial-NoDerivs 3.0 Spain
Except where otherwise noted, content on this work is licensed under a Creative Commons license : Attribution-NonCommercial-NoDerivs 3.0 Spain
Abstract
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 (HO) 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 HO (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 HO (main chemical reagent) and reducing the electrical energy consumption (recirculation flow) by operating the system under conditions present in large-scale photochemical reactors.
CitationVenier, C. [et al.]. A CFD study of an annular pilot plant reactor for Paracetamol photo-Fenton degradation. "Chemical engineering journal", 15 Abril 2021, vol. 410, p. 128246:1-128246:12. 
URIhttp://hdl.handle.net/2117/353286
DOI10.1016/j.cej.2020.128246
ISSN0300-9467
Publisher versionhttps://www.sciencedirect.com/science/article/abs/pii/S1385894720343588
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  • CEPIMA - Center for Process and Environment Engineering - Articles de revista [128]
  • Departament d'Enginyeria Química - Articles de revista [2.067]
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