Method for regenerating catalysts

Details Method for regenerating catalysts Method for regenerating catalysts

B - Operations, Transporting

01

J

B01J 23/92 (2006.01) B01D 53/86 (2006.01) B01D 53/96 (2006.01) B01J 37/34 (2006.01) B01J 38/00 (2006.01) B01J 38/48 (2006.01) B08B 3/12 (2006.01)

Patent

CA 2336562

The invention relates to a method for regenerating catalysts which catalyze the reduction of nitrogen oxides in the molecular nitrogen, which are essentially comprised of titanium oxide TiO2, tungsten oxide WO3 and of the active constituent vanadium oxide V2O5, and which are constructed as ceramic bodies, preferably in a plate or honeycomb structure. The inventive method is characterized in that the catalyst is moved in a cleaning solution and is subjected to an ultrasonic treatment.

Procédé de régénération de catalyseurs catalysant la réduction d'oxydes d'azote en azote moléculaire, qui sont constitués pour l'essentiel d'oxyde de titane TiO2, d'oxyde de tungstène WO3 et du constituant actif pentoxyde de vanadium V2O5 et qui se présentent sous forme de corps en céramique, de préférence avec une structure en plaques ou en nids d'abeilles. Ledit procédé est caractérisé en ce que le catalyseur est déplacé dans une solution de nettoyage et soumis à un traitement aux ultrasons.

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