Method for the regeneration of phosphorus-loaded denox...

Details Method for the regeneration of phosphorus-loaded denox... Method for the regeneration of phosphorus-loaded denox...

B - Operations, Transporting

01

D

B01D 53/96 (2006.01)

Patent

CA 2496693

The invention relates to a method for the regeneration of deNOx catalysts with a reduced activity caused by the accumulation of phosphor and phosphorous compounds. The method is characterised in that the catalysts are treated with an essentially aqueous solution of water-soluble alkaline reacting alkaline earth salts, ammonium hydroxide, or alkaline reacting ammonium salts, or water- soluble organic amines with an approximate pK value ranging between 2.5 and 5.5 and that the excess alkali is neutralised by subsequent treatment with inorganic or organic acids.

L'invention concerne un procédé permettant de régénérer des catalyseurs d'élimination des NOx présentant une activité réduite en raison de l'accumulation de phosphore et de composés phosphoreux. Ce procédé se caractérise en ce qu'il consiste à traiter les catalyseurs avec une solution sensiblement aqueuse de sels de métaux alcalins à réaction alcaline solubles dans l'eau, d'hydroxyde d'ammonium ou de sels d'ammonium à réaction alcaline ou d'amines organiques solubles dans l'eau présentant un pK compris entre 2,5 et 5,5, puis à neutraliser l'excédent d'alcali par un traitement ultérieur avec des acides inorganiques ou organiques.

Affiliated with

Also associated with

Rating

Method for the regeneration of phosphorus-loaded denox... 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 the regeneration of phosphorus-loaded denox..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for the regeneration of phosphorus-loaded denox... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFCA-PAI-O-1808043