Kinetic modeling of partial oxidation of benzyl alcohol in water by means of Fe(III)/O2/UV–solar simulated process
| Autor: | Danilo Spasiano, Gerardino D'Errico, Ilaria Di Somma, Giuseppe Vitiello, Raffaele Marotta, Roberto Andreozzi, Immacolata Gargano |
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| Přispěvatelé: | Danilo, Spasiano, Marotta, Raffaele, Immacolata, Gargano, DI SOMMA, Ilaria, Vitiello, Giuseppe, D'Errico, Gerardino, Andreozzi, Roberto |
| Rok vydání: | 2014 |
| Předmět: |
Kinetic modeling
General Chemical Engineering Inorganic chemistry Partial photo-oxidation Industrial and Manufacturing Engineering Benzaldehyde chemistry.chemical_compound Fe(III) photocatalysis Reaction rate constant Benzyl alcohol medicine Environmental Chemistry Chemical Engineering (all) Partial oxidation Benzoic acid Mass balance Chemistry (all) General Chemistry Benzaldehyde production ESR analysis chemistry Photocatalysis Ferric medicine.drug |
| Zdroj: | Chemical engineering journal ( Print) 249 (2014): 130–142. doi:10.1016/j.cej.2014.03.076 info:cnr-pdr/source/autori:Spasiano D.; Marotta R.; Gargano I.; Somma I.D.; Vitiello G.; D'Errico G.; Andreozzi R./titolo:Kinetic modeling of partial oxidation of benzyl alcohol in water by means of Fe(III)%2FO2%2FUV-solar simulated process/doi:10.1016%2Fj.cej.2014.03.076/rivista:Chemical engineering journal ( Print)/anno:2014/pagina_da:130/pagina_a:142/intervallo_pagine:130–142/volume:249 |
| ISSN: | 1385-8947 |
| Popis: | The mechanism of selective oxidation of benzyl alcohol to benzaldehyde and of benzaldehyde to benzoic acid by means of ferric ions in water under simulated UV-solar radiation is investigated through the development of a new kinetic model, also based on the results of Electron Spin Resonance (ESR) experiments, not previously reported in the literature. A value of pH = 0.5 is chosen with the aim to minimize the contribution of the undesired hydroxylation reactions. The mathematical model is constituted by of a set of mass balance equations for the chemical species involved in the homogeneous photocatalytic oxidation process. The experimental concentration-time profiles, collected at different starting substrates concentrations, are satisfactorily predicted by the model under deaerated and aerated conditions. The values of different rate constants of the reactions, taken into account for the adopted mechanism, not available in the literature, are estimated by a proper optimizing procedure. The model may be used for the prediction of the performance of the homogeneous Fe(III)-photo-catalytic partial conversion of aromatic alcohols to the corresponding aldehydes in water at room temperature and very acidic pH. © 2014 Elsevier B.V. All rights reserved. |
| Databáze: | OpenAIRE |
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