Umicore Ag & Co Kg

Haldor Topsoe A/s

Claus S Jørgensen

Jakob Weiland Høj

Pär L T Gabrielsson

Method for the preparation of a catalyst comprising vanadium pentoxide supported on a metal oxide catalyst carrier comprising the steps of a) providing particles of crystalline vanadium pentoxide and particles of a metal oxide catalyst carrier; b) solid state mixing the particles and dispersing the vanadium pentoxide particles on surface of the metal oxide carrier particles; and c) anchoring the dispersed vanadium pentoxide particles on surface of the metal oxide carrier particles by calcination at a temperature above 500&#xb0; C., characterized in that sintering of the vanadium pentoxide particles is suppressed by addition of an anti-sintering metal oxide component, such as tungsten trioxide, during the anchoring in step c).

Method for the preparation of a vanadium based catalyst

Method for the preparation of a honeycomb catalyst including the steps of pre-coating a non-woven fibrous sheet, corrugating the fibrous sheet and rolling-up or stacking-up the corrugated sheet to form a honeycomb body. The honeycomb body is subsequently washcoated, including the addition of at least one catalytically active compound.

Preparation method of a non-woven fibrous material-based honeycomb catalyst

The present invention relates to a catalyst support material and catalysts made therefrom having improved resistance towards erosion. The catalyst support contains at least 20% by weight of TiObeing present mainly in the anatase form. Furthermore, the catalyst support contains diatomaceous earth in an amount of at least 2% and less than 80% by weight of the catalyst support. In one embodiment catalysts made from said catalyst support contain oxides or sulfates of base metals from the group of V, W, Mn, Nb, Mo, Ni, Fe or Cu. Another option is a catalyst prepared from said catalyst support containing Pt or Pd. Said catalysts are used for treatment of a flue gas. More specifically the catalyst supports prepared according to the present invention and showing improved resistance towards erosion are used in flue gas containing a large amount of particulate matter and for selective catalytic reduction of nitrous oxides.

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Virum, Denmark

Claus S Jørgensen