Method for renewed activation of honeycomb-shaped catalyst...

Details Method for renewed activation of honeycomb-shaped catalyst... Method for renewed activation of honeycomb-shaped catalyst...

B - Operations, Transporting

01

J

B01J 38/00 (2006.01) B01D 53/86 (2006.01) B01D 53/96 (2006.01) B01J 38/04 (2006.01) B01J 38/48 (2006.01)

Patent

CA 2271625

The invention relates to a method for renewed activation of honeycomb-shaped catalyst elements for denitrating flue gases from fossil fuel-fired boiler plants, specially coal-fired boiler plants in large power stations. According to the invention, each catalyst element is mechanically cleaned using oil and water-free compressed air before mounting. Subsequently, each element is subjected to wet chemical cleaning using fully desalinated water and dried with oil and water-free compressed air. The inventive method enables the activity of used catalyst elements to be increased from less than 50 % to more 83 % of original activity.

L'invention concerne un procédé pour l'activation renouvelée d'éléments catalytiques alvéolaires en vue de la dénitruration des gaz de fumée provenant de chaudières à combustible fossile, notamment des chaudières des centrales à grande puissance fonctionnant au charbon. Ce procédé consiste, lors du démontage, à soumettre chaque élément catalytique tout d'abord à un nettoyage mécanique à l'aide d'air comprimé dépourvu d'huile et d'eau, puis à un nettoyage chimique par voie humide au moyen d'eau complètement déminéralisée et ensuite à un séchage au moyen d'air comprimé exempt d'huile et d'eau. Ce traitement permet de faire passer l'activité d'éléments catalytiques usagés de moins de 50 % à plus de 83 % de l'activité initiale.

Affiliated with

Also associated with

Rating

Method for renewed activation of honeycomb-shaped catalyst... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method for renewed activation of honeycomb-shaped catalyst..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for renewed activation of honeycomb-shaped catalyst... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1764704