Alkali resistant deNOx catalysts

The Nb-promoted V2O5/T1O2, and V2O5/TiO2-PILC's as well as the unpromoted V2O5/TiO2-PILC's exhibit relatively better resistance towards alkali poisoning. However, they could not be considered as interesting alternatives, because the original activity and activity after potassium contamination were still significantly lower than for the traditional catalyst.
Results

However, PILC’s with other metals as active components did exhibit rather high activities, and good resistance towards K-contamination. Since these catalytic systems still are yet to be optimized, we have promising candidates as alternative catalysts for alkali resistant SCR catalysis. This indcludes also other metals on other supports which seem interesting, since it is expected that the active sites are less dependent on the sensitive Lewis/Brøndsted acid pair of the V205 based systems. These alternative supports have provided insight to an interesting alternative strategy for obtaining alkali resistant SCR catalysts. It is possible to keep the alkali compounds away from the active sites, by having carrier materials with superior K-affinity. These systems seem to have rather high catalytic activities — atso after potassium impregnation. The most valuable results of the project form the base of the proceeding PSO-project FU5201 'DeNOx catalysis in biomass fired plants'

Key figures

Period:
2002 - 2004
Funding year:
2002
Own financial contribution:
0.99 mio. DKK
Grant:
2.65 mio. DKK
Funding rate:
73 %
Project budget:
3.63 mio. DKK

Category

Oprindelig title
Alkaliresistente deNOx-katalysatorer
Programme
ForskEL
Technology
Bio and waste
Case no.
2202

Participants

Ørsted A/S (Main Responsible)
Partners and economy
Partner Subsidy Auto financing
No entries available.

Contact

Kontakperson
Storm Pedersen, Lars
Comtact information
Energi E2 A/S
Lautruphøj 5
DK-2750 Ballerup, Denmark
Storm Pedersen, Lars
Øvr. Partnere: ICAT - DTU; CHEC - DTU

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