Process and catalyst system for SCR of NOx
AssigneeHaldor TopsøE A/S
InventorsAlexandr Stakhev, Søren Dahl, Ioannis Gekas, Pär L. T. Gabrielsson
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Abstract
Process for reducing nitrogen oxides to nitrogen in an exhaust gas comprising passing the exhaust gas in the presence of a reducing agent through a catalyst system comprising at least two catalyst beds, in which a first catalyst bed is an iron-beta-zeolite and a second catalyst bed downstream is silver supported on alumina.
Claims14
Process for reducing nitrogen oxides to nitrogen in an exhaust gas comprising passing the exhaust gas in the presence of a reducing agent through a catalyst system comprising at least two catalyst beds, in which a first catalyst bed is an iron-beta-zeolite and a second catalyst bed downstream is silver supported on alumina.
Catalyst system for reduction of nitrogen oxides from exhaust gases comprising at least two catalyst beds, in which a first catalyst bed is iron-beta-zeolite and a second catalyst bed downstream is silver supported on alumina.
Dependencies are inferred from the claim text.