Wet Air Oxidation of Acetic Acid over Ruthenium Catalysts Supported on Cerium Based Materials - Influence of Metal and Oxide Crystallite Sizes

0311985 - ÚCHP 2009 GB eng C - Conference Paper (international conference)
Gaálová, Jana - Barbier Jr., J. - Rossignol, S. - Mesnard, D. - Duprez, D. - Kappenstein, C.
Wet Air Oxidation of Acetic Acid over Ruthenium Catalysts Supported on Cerium Based Materials - Influence of Metal and Oxide Crystallite Sizes.
[Mokrá oxidace vzduchu kyseliny octové na Ru-ZrCePrO katalyzátorech.]
Poster Abstracts. Wuppertal: BUW, 2008 - (-), s. 353. ISBN N.
[5th International Conference on Environmental Catalysis. Belfast (GB), 31.08.08-03.09.2008]
Institutional research plan: CEZ:AV0Z40720504
Keywords : wet air oxidation * Ru catalysts
Subject RIV: CI - Industrial Chemistry, Chemical Engineering

In order to compare to similar, previously studied platinum catalysts, further samples were prepared on two supports calcined at 800 °C. They have demonstrated a good intrinsic activity, a higher resistance versus poisoning by carbonate species during CWAO experiments, but a poor variety of metallic crystallite sizes (low Ru dispersion ranging from 1 to 9 %). Better dispersions were obtained after calcination of supports at lower temperatures. The ruthenium exchanged catalysts reveal better activity than their impregnated homologues.

Zr a Pr zlepšují OSC Ru-Ce katalyzátorů, ale jsou deaktivovány počas mokré oxidace depozitem uhličitanů.
Permanent Link: http://hdl.handle.net/11104/0163169