Method and compound for the selective adsorption of nitrogen...

Details Method and compound for the selective adsorption of nitrogen... Method and compound for the selective adsorption of nitrogen...

C - Chemistry, Metallurgy

01

G

C01G 1/02 (2006.01) B01D 53/56 (2006.01) B01J 20/04 (2006.01) B01J 20/30 (2006.01)

Patent

CA 2297973

A method for selectively absorbing nitrogen oxides NOx from gaseaous mixtures containing carbon dioxide or carbon dioxide and water and optionally contaminants chosen among CO, SO2, hydrocarbons and mixtures thereof, comprising placing the gaseous mixtures in contact with absorber compounds having formula Ba2Cu3O5+d, where d is a number from 0.6 to 1. New compounds having the above formula are characterized by high resistance to carbonatation and by specific Raman spectra.

Procédé servant à absorber de façon sélective des oxydes d'azote NO¿x? depuis des mélanges gazeux contenant du gaz carbonique ou du gaz carbonique et de l'eau et, éventuellement, des contaminants sélectionnés dans CO, SO¿2?, des hydrocarbures et leurs mélanges, ce qui consiste à mettre ces mélanges gazeux en contact avec des composés absorbants représentés par la formule Ba¿2?Cu¿3?O¿5+d?, dans laquelle d est un nombre de 0,6 à 1. Nouveaux composés représentés par la formule ci-dessus et caractérisés par une résistance élevée à la carbonatation et par des spectres Raman spécifiques.

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