Regeneration of Pt-catalysts deactivated in municipal waste flue gas with H2/N2 and the effect of regeneration step on the SCR catalyst

Johannes Due-Hansen, Søren Brik Rasmussen, Arkady Kustov, Bernard Siret (Editor), Frank Tabaries (Editor), Rasmus Fehrmann

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Abstract

The deactivation performance of Pt-catalysts for CO oxidation has been studied in relation to use in sewage sludge municipal waste burners, where HMDS was found to poison the industrial catalyst in a similar way to the model Pt/TiO2 catalyst. A promising regeneration procedure was developed based on reduction with hydrogen. This procedure had negligible effect on the performance of the SCR catalyst. After treatment with 2% H2, 8% O2 in N2 for one hour, a slight better NO SCR activity was observed due to increase in the concentration V4+ sites. However, after exposure in normal NO SCR gases the activity quickly returned to normal.
Original languageEnglish
Publication date2006
Publication statusPublished - 2006
Event8th European Congress on Catalysis: From Theory to Industrial Practice - Turku, Finland
Duration: 26 Aug 200731 Aug 2007
Conference number: 8

Conference

Conference8th European Congress on Catalysis
Number8
CountryFinland
CityTurku
Period26/08/200731/08/2007

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