Kinetic Model of the 1,2-Propanediol Oxidation Reaction in the Presence of 3wt%Pd/α-Al2O3 Catalyst

Key Engineering Materials. Vol.903: Riga Technical University 61st International Scientific Conference "Materials Science and Applied Chemistry 2020" (MSAC 2020) 2021
Svetlana Čornaja, Svetlana Žižkuna, Jevgēnija Vladiko

Supported 3wt%Pd/α-Al₂O₃ catalyst was tested in selective oxidation of 1,2-propanediol by molecular oxygen. It was found that the catalyst is active in an alkaline water solution. Lactic acid was obtained as the main product of the reaction. Influence of different reaction conditions on 1,2-PDO conversion and oxidation process selectivity was studied. Partial kinetic orders of the reaction with respect to 1,2-propanediol, c0(NaOH), p(O2), n(1,2-PDO)/n(Pd)) were determined and an experimental kinetic model of the catalytic oxidation reaction was obtained. Activation energy of the process was calculated and was found to be about 53 ± 5 kJ/mol.

Keywords
1,2-propanediol; Catalysis; Lactic acid; Oxidation; Oxygen; Palladium catalyst
DOI
10.4028/www.scientific.net/KEM.903.143
Hyperlink
https://www.scientific.net/KEM.903.143

Čornaja, S., Žižkuna, S., Vladiko, J. Kinetic Model of the 1,2-Propanediol Oxidation Reaction in the Presence of 3wt%Pd/α-Al2O3 Catalyst. Key Engineering Materials, 2021, Vol. 903, pp.143-148. ISSN 1013-9826. e-ISSN 1662-9795. Available from: doi:10.4028/www.scientific.net/KEM.903.143

Publication language
English (en)