Method for treating flue gases containing ammonia

The invention relates to a method for removing ammoniacal components of a flue gas that has been treated according to the SNCR method, wherein the method is characterized in that the flue gas is contacted at a temperature, that is at least 150° C. below that at which the SNCR method is carried out,...

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Bibliographische Detailangaben
Hauptverfasser: Keldenich, Kai, Wolf, Christian, Marzi, Thomas, Toda, Tetsuro, Imai, Tomoyuki
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The invention relates to a method for removing ammoniacal components of a flue gas that has been treated according to the SNCR method, wherein the method is characterized in that the flue gas is contacted at a temperature, that is at least 150° C. below that at which the SNCR method is carried out, with a ferro-oxidic catalyst having a specific surface area of at least 0.2 m 2 /g, measured according to the BET method. Preferably, the catalyst is added to the flue gas at a temperature of 700-400° C. of the gas in the flue channel.