Selective catalytic reduction of nitrogen oxides

Details Selective catalytic reduction of nitrogen oxides Selective catalytic reduction of nitrogen oxides

B - Operations, Transporting

01

D

B01D 53/56 (2006.01) B01D 53/86 (2006.01)

Patent

CA 2249708

A process for the selective catalytic reduction of a nitrogen oxide present in a gas mixture containing oxygen, comprises separating the nitrogen oxide and oxygen from one another to provide a substantially oxygen-free gas mixture containing the nitrogen oxide and reacting the nitrogen oxide contained therein with an organic reducing agent in the presence of a catalyst and in a substantially oxygen-free atmosphere defined by the substantially oxygen-free gas mixture, thereby reducing the nitrogen oxide to nitrogen. The process of the invention enables one to substantially completely remove NO X from oxygen-rich gas mixtures and convert same to harmless N2, in an efficient and cost-effective manner.

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