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 Birk Rasmussen, Arkadii Kustov, Bernard Siret, Frank Tabaries, Rasmus Fehrmann

Research output: Contribution to conferencePosterResearch

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Abstract

Municipal waste flue gas was previously found to deactivate the Pt-based CO oxidation catalyst severely. In the specific case studied, siloxanes were found to cause the deactivation. An on-site method for complete regeneration of the catalyst activity was found without shutdown of the flue gas stream, i.e. by in situ treatment of the Pt-catalyst by reductive H2-gas. However, introduction of H2 gas in the gas stream could also affect other units in the tail pipe gas cleaning system. Of special interest here, is the effect of hydrogen gas on the performance of the deNOx + SCR catalytic process, i.e. the reaction 4NO + 4NH3 + O2 ->4N2 + 6H2O.
Original languageEnglish
Publication date2007
Publication statusPublished - 2007
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

Cite this

Due-Hansen, J., Rasmussen, S. B., Kustov, A., Siret, B., Tabaries, F., & Fehrmann, R. (2007). Regeneration of Pt-catalysts deactivated in municipal waste flue gas with H2/N2 and the effect of regeneration step on the SCR catalyst. Poster session presented at 8th European Congress on Catalysis, Turku, Finland.