Journal article
Heteropoly acid promoted V2O5/TiO2 catalysts for NO abatement with ammonia in alkali containing flue gases
Department of Chemistry, Technical University of Denmark1
Centre for Catalysis and Sustainable Chemistry, Department of Chemistry, Technical University of Denmark2
CHEC Research Centre, Department of Chemical and Biochemical Engineering, Technical University of Denmark3
Department of Chemical and Biochemical Engineering, Technical University of Denmark4
V2O5/TiO2 and heteropoly acid promoted V2O5/TiO2 catalysts were prepared and characterized by N2 physisorption, XRPD and NH3-TPD. The influence of the calcination temperature from 400 to 700 1C on crystallinity and acidic properties was studied and compared with the activity for the selective catalytic reduction (SCR) of NO with ammonia.
The SCR activity of heteropoly acid promoted catalysts was found to be much higher than for unpromoted catalysts. The stability of heteropoly acid promoted catalysts is dependent on calcination temperature and there is a gradual decrease in SCR activity and acidity with increase in calcination temperatures.
Furthermore, the heteropoly acid promoted V2O5/TiO2 catalysts showed excellent alkali deactivation resistance and might therefore be alternative deNOx catalysts in biomass fired power plants.
Language: | English |
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Year: | 2011 |
Pages: | 631-637 |
ISSN: | 20444761 and 20444753 |
Types: | Journal article |
DOI: | 10.1039/c1cy00081k |
ORCIDs: | Putluru, Siva Sankar Reddy , Jensen, Anker Degn , Riisager, Anders and Fehrmann, Rasmus |