Catalysts for Wet Air Oxidation Based on Ce-Zr-Pr-O Mixed Oxides

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985858%3A_____%2F06%3A00323531" target="_blank" >RIV/67985858:_____/06:00323531 - 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
Catalysts for Wet Air Oxidation Based on Ce-Zr-Pr-O Mixed Oxides
Original language description
Sol-gel Zr0.1Ce0.9O2 and Zr0.1(Ce0.75Pr0.25)O2 mixed oxides and coprecipitated pure ceria CeO2 displaying the fluorine type structure have been used as platinum or ruthenium catalysts? supports for catalytic wet air oxidation (CWAO) of aqueous solution of acetic acid. These catalysts were prepared by conventional impregnation (5 wt-%) from platinum and ruthenium precursor salts or by exchange in the case of ruthenium. A screening of catalysts in CWAO at 200°C under 2 MPa was performed and reveals that the best platinum catalyst is supported on pure ceria displaying large surface. For ruthenium catalysts, the highest conversion after 3 hours of reaction has been reached by the Ru/Zr-Ce-O system.
Czech name
Katalyzátory pro vlhkou oxidaci vzduchem na báze Ce-Zr-Pr-O
Czech description
Na připravených nosičích Zr0.1Ce0.9O2 a Zr0.1(Ce0.75Pr0.25)O2, impregnovaných platinou a rutheniem, byla prováděna oxidace kyseliny octové. Platinové katalyzátory jsou aktivnější, když mají větší povrch. Z rutheniových byl nejlepší Ru/Zr-Ce-O systém.

Publication year
2006
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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