Catalytic Wet Air Oxidation of Oxalic Acid - Roy, Shyamal;Saroha, Anil Kumar
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Oxidation of oxalic acid was carried out in a four-neck glass reactor operated at atmospheric pressure. Most of the experiments were performed using Pt/Al2O3 and ceria promoted Pt/Al2O3 catalysts. The catalysts were prepared by excess solution impregnation (ESI) method. Catalysts supported on alumina with different Pt loadings (0.2 to 0.7 wt %) and different ceria contents (2 to 15 wt %) were prepared. The surface morphology of the prepared catalysts was investigated using a scanning electron microscope (SEM) analyzer. Their phases were analyzed with powder X-ray diffraction. In addition to…mehr

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Produktbeschreibung
Oxidation of oxalic acid was carried out in a four-neck glass reactor operated at atmospheric pressure. Most of the experiments were performed using Pt/Al2O3 and ceria promoted Pt/Al2O3 catalysts. The catalysts were prepared by excess solution impregnation (ESI) method. Catalysts supported on alumina with different Pt loadings (0.2 to 0.7 wt %) and different ceria contents (2 to 15 wt %) were prepared. The surface morphology of the prepared catalysts was investigated using a scanning electron microscope (SEM) analyzer. Their phases were analyzed with powder X-ray diffraction. In addition to these the characterization was enriched by energy dispersive X-ray spectroscopy (EDX), nitrogen adsorption, chemisorptions and thermo-gravimetric (TGA) analysis. Non-catalytic and catalytic wet air oxidation of oxalic acid using ZnO, CeO2, Al2O3, Pt/Al2O3 and ceria promoted Pt/Al2O3 was carried out. The degradation of oxalic acid obtained by CWAO was found to be much higher as compared to non-catalytic oxidation. The various parameters such as size of the catalyst particle, air flow rate and agitation speed, catalyst dosage and loading, initial concentration of oxalic acid were studied.
Autorenporträt
Dr. Shyamal Roy schloss sein Studium der Chemietechnik an der Jadavpur University, Kolkata, Indien, mit dem B.Tech und M.Tech ab und promovierte am Indian Institute of Technology, Delhi, Indien, in Chemietechnik. Als Postdoktorand forschte er an der Washington University, MO, USA und der Rutgers University, NJ, USA. Jetzt ist er Fakultätsmitglied an der Jadavpur-Universität.