New approach for kinetic parameters determination for hydrothermal oxidation reaction
| Autor: | François Cansell, Jacques Mercadier, David Mateos, J.R. Portela, Christine Marraud, Frederic Marias |
|---|---|
| Přispěvatelé: | Institut de Chimie de la Matière Condensée de Bordeaux (ICMCB), Institut de Chimie du CNRS (INC)-Centre National de la Recherche Scientifique (CNRS)-Institut Polytechnique de Bordeaux-Université de Bordeaux (UB), Department of Chemical Engineering, Food Technology and Environmental Technologies, Faculty of Sciences, University of Cadiz, LABORATOIRE DE THERMIQUE ENERGETIQUE ET PROCEDES (EA1932) (LATEP), Université de Pau et des Pays de l'Adour (UPPA), Matériaux Energétiques (SNPE), SNPE |
| Jazyk: | angličtina |
| Rok vydání: | 2005 |
| Předmět: |
[SPI.OTHER]Engineering Sciences [physics]/Other
General Chemical Engineering Kinetics Analytical chemistry Thermodynamics 02 engineering and technology 010501 environmental sciences Kinetic energy Acetic acid 01 natural sciences Isothermal process Hydrothermal circulation chemistry.chemical_compound Linear regression Phenol Physical and Theoretical Chemistry ComputingMilieux_MISCELLANEOUS 0105 earth and related environmental sciences Hydrothermal oxidation Methanol [CHIM.MATE]Chemical Sciences/Material chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics Pilot plant chemistry [PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci] Kinetic parameters 0210 nano-technology |
| Zdroj: | Journal of Supercritical Fluids Journal of Supercritical Fluids, Elsevier, 2005, 34 (1), pp.63-70. ⟨10.1016/j.supflu.2004.10.013⟩ |
| ISSN: | 0896-8446 |
| DOI: | 10.1016/j.supflu.2004.10.013⟩ |
| Popis: | The purpose of this study is to test Runge–Kutta algorithm to obtain reliable kinetic parameters for the hydrothermal oxidation of organic compounds. A tubular reactor system was used to carry out the oxidation of several model compounds: acetic acid, methanol and phenol. All experiments were performed in isothermal conditions in a temperature range varying from 250 to 500 °C and at a constant pressure of 25 MPa. Three different methods, namely pseudo-first-order kinetics, multiple linear regression and Runge–Kutta algorithm, were used to determine the kinetic parameters. Results obtained by these different methods were similar, so that Runge–Kutta algorithm was validate for the determination of kinetic parameters. In contrast with the pseudo-first-order kinetics and the multi linear regression, Runge–Kutta algorithm was more convenient for the kinetic parameter determination starting from experiments performed at the laboratory scale or in industrial scale pilot plant facilities. |
| Databáze: | OpenAIRE |
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