Ruthenium and Platinum Catalysts Supported on Ce, Zr, Pr-O Mixed Oxides Prepared by Soft Chemistry for Acetic Acid Wet Air Oxidation

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F07%3A00311984" target="_blank" >RIV/67985858:_____/07:00311984 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Ruthenium and Platinum Catalysts Supported on Ce, Zr, Pr-O Mixed Oxides Prepared by Soft Chemistry for Acetic Acid Wet Air Oxidation
Original language description
These catalysts were prepared by conventional impregnation (5 wt.%) from platinum and ruthenium precursor salts. A screening of catalysts in CWAO at 200 °C under 2 MPa of partial oxygen pressure was performed and reveals that the best platinum catalyst is supported on pure ceria displaying large surface area. The mineralization of acetic acid solution reached 90% after 3 h of reaction on PtCe catalyst. For ruthenium catalysts, the highest conversion after 3 h of reaction has been reached by the Ru/Zr-Ce-O system (M3h = 88%). Ce(CO3)OH species, evidenced by FT-IR and XRD, were formed during the CWAO reaction essentially on well dispersed platinum catalysts supported on mixed oxides.
Czech name
Rurthéniové a platinové katalyzátory na nosičích Ce-Zr-Pr-O pro vlhkou oxidaci vzduchem kyseliny octové
Czech description
Nejlepší platinové a rutheniové katalyzátory vykazují přítomnost uhličitanových sloučenin na povrchu, které inhibují katalytickou reakci. Optimum v těchto případech připadá na katalyzátory se střední mobilitou kyslíku.

Type
J<sub>x</sub> - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)
CEP classification
CI - Industrial chemistry and chemical engineering
OECD FORD branch
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Publication year
2007
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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