Support and Dispersion Effects on Activity of Platinum Catalysts during Wet Oxidation of Organic Wastes

Simple item page
dc.contributor.authorMasende, Z. P. G.
dc.contributor.authorKuster, B. F. M.
dc.contributor.authorPtasinski, Krzysztof J.
dc.contributor.authorJanssen, Frans J. J. G.
dc.contributor.authorKatima, Jamidu H. Y.
dc.contributor.authorSchouten, J. C.
dc.date.accessioned2016-05-27T13:50:28Z
dc.date.available2016-05-27T13:50:28Z
dc.date.issued2005
dc.description.abstractCatalytic activity of platinum catalysts such as Pt/graphite, Pt/TiO2, Pt/Al2O3, and Pt/active carbon was studied using a slurry phase CSTR. Three model reactions, namely, phenol, maleic acid, and malonic acid oxidation were investigated in the temperature range from 120 to 170 C and at a total reactor pressure of 1.7 MPa. Platinum on graphite was found to be most suitable for aqueous phase oxidation of phenol, maleic acid, and malonic acid. Complete conversion for both phenol oxidation as well as maleic acid oxidation to CO2 was observed with Pt/graphite at stoichiometric oxygen excess close to 0% and at 150 C. Deactivation due to over-oxidation is gradual for Pt/graphite with a metal dispersion of 5.3% as compared to Pt/TiO2, Pt/Al2O3 and Pt/AC, which have metal dispersions of 15.3%, 19.5% and 19.0%, respectively. It was further found that in the presence of Pt/graphite catalyst and oxygen, malonic acid reaction proceeds via non-catalysed decarboxylation, and catalytic decarboxylation to CO2 and acetic acid, and catalytic oxidation to CO2 and H2O. Acetic acid was found to be difficult to oxidise at temperatures below 200 C.en_US
dc.identifier.citationMasende, Z.P.G., Kuster, B.F.M., Ptasinski, K.J., Janssen, F.J.J.G., Katima, J.H.Y. and Schouten, J.C., 2005. Support and dispersion effects on activity of platinum catalysts during wet oxidation of organic wastes. Topics in catalysis, 33(1-4), pp.87-99.en_US
dc.identifier.doi10.1007/s11244-005-2514-4
dc.identifier.urihttp://hdl.handle.net/20.500.11810/2298
dc.language.isoenen_US
dc.publisherSpringer Linken_US
dc.subjectPlatinum catalystsen_US
dc.subjectCatalytic supportsen_US
dc.subjectWastewater treatmenten_US
dc.subjectStoichiometric oxygen excessen_US
dc.subjectPlatinum metal dispersionen_US
dc.titleSupport and Dispersion Effects on Activity of Platinum Catalysts during Wet Oxidation of Organic Wastesen_US
dc.typeJournal Article, Peer Revieweden_US
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Support and dispersion effects on activity of platinum catalysts.pdf
Size:
542.03 KB
Format:
Adobe Portable Document Format
Description:
Full text
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.71 KB
Format:
Item-specific license agreed upon to submission
Description:
Download
Collections
Department of Water Resources Engineering