Next Article in Journal
Photocatalytic Decolorization of Dye with Self-Dye-Sensitization under Fluorescent Light Irradiation
Next Article in Special Issue
Resolved-Pore Simulation of CO Oxidation on Rh/Al2O3 in a Catalyst Layer
Previous Article in Journal
Effect of Methyl β-cyclodextrin on Radical Scavenging Kinetics of Olive Leaf Extracts and Interactions with Ascorbic Acid
Open AccessArticle

Glycerol Oxidation in the Liquid Phase over a Gold-Supported Catalyst: Kinetic Analysis and Modelling

IRCELYON, CNRS, UCBL, 69626 Villeurbanne CEDEX, France
Unité de Catalyse et Chimie du Solide, Univ. Lille, CNRS, Centrale Lille, ENSCL, Univ. Artois, 59655 Villeneuve d’Ascq, France
Cracow University of Technology, 31-155 Cracow, Poland
Laboratoire de Génie des Procédés Catalytiques, CNRS, Université Lyon 1, CPE-Lyon, 69616 Villeurbanne, France
Author to whom correspondence should be addressed.
ChemEngineering 2017, 1(1), 7;
Received: 24 July 2017 / Revised: 4 September 2017 / Accepted: 7 September 2017 / Published: 15 September 2017
The present work deals with the kinetic analysis and modelling of glycerol (GLY) oxidation in the liquid phase over a supported gold catalyst. A Langmuir-Hinshelwood model was proposed, after considering the effect of the reaction temperature, the NaOH/GLY ratio and the initial concentrations of GLY and GLY-Product mixtures. The proposed model effectively predicted the experimental results, and both the global model and the individual parameters were statistically significant. The results revealed that the C–C cleavage to form glycolic and formic acids was the most important reaction without a catalyst. On the other hand, the supported Au catalyst promoted the GLY oxidation to glyceric acid and its further conversion to tartronic and oxalic acids. Regarding the adsorption terms, glyceric acid showed the highest constant value at 60 °C, whereas those of GLY and OH were also significant. Indeed, this adsorption role of OH seems to be the reason why the higher NaOH/GLY ratio did not lead to higher GLY conversion in the Au-catalysed reaction. View Full-Text
Keywords: glycerol oxidation; gold; kinetic modelling; Langmuir-Hinshelwood glycerol oxidation; gold; kinetic modelling; Langmuir-Hinshelwood
Show Figures

Figure 1

MDPI and ACS Style

Díaz, J.A.; Skrzyńska, E.; Girardon, J.-S.; Capron, M.; Dumeignil, F.; Fongarland, P. Glycerol Oxidation in the Liquid Phase over a Gold-Supported Catalyst: Kinetic Analysis and Modelling. ChemEngineering 2017, 1, 7.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

Back to TopTop