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; Frank Tabaries; Rasmus Fehrmann

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

Department of Chemistry

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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 language	English
Publication date	2006
Publication status	Published - 2006
Event	8th European Congress on Catalysis: From Theory to Industrial Practice - Turku, Finland Duration: 26 Aug 2007 → 31 Aug 2007 Conference number: 8

Conference

Conference	8th European Congress on Catalysis
Number	8
Country/Territory	Finland
City	Turku
Period	26/08/2007 → 31/08/2007

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

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.",

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T1 - Regeneration of Pt-catalysts deactivated in municipal waste flue gas with H2/N2 and the effect of regeneration step on the SCR catalyst

AU - Due-Hansen, Johannes

AU - Rasmussen, Søren Brik

AU - Kustov, Arkady

AU - Fehrmann, Rasmus

A2 - Siret, Bernard

A2 - Tabaries, Frank

N1 - Conference code: 8

PY - 2006

Y1 - 2006

N2 - 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.

AB - 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.

M3 - Paper

T2 - 8th European Congress on Catalysis

Y2 - 26 August 2007 through 31 August 2007

ER -

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

Abstract

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