METHOD FOR THE REGENERATION OF PHOSPHORUS-LOADED DENOX CATALYSTS
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 al...
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Main Authors | , |
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Format | Patent |
Language | English French |
Published |
19.07.2011
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Subjects | |
Online Access | Get full text |
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Summary: | 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. |
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Bibliography: | Application Number: CA20032496693 |