Process for preparing hydroxylamine from nox-containing flue...

Details Process for preparing hydroxylamine from nox-containing flue... Process for preparing hydroxylamine from nox-containing flue...

C - Chemistry, Metallurgy

01

B

C01B 21/14 (2006.01) B01D 53/34 (2006.01) B01D 53/56 (2006.01)

Patent

CA 2121133

2121133 9308121 PCTABS00021 A process and device are disclosed for preparing hydroxylamine from NOx-containing flue gases. Nitrogen removal from the NOx-containing flue gases by absorption in an aqueous solution of FeII-EDTA and by desorption through vapour stripping of the NA from the thus obtained FeII(NO)-EDTA solution, with admixture of hydrogen, leading to the recovery of an NO/H2 gaseous mixture, is combined with hydroxylamine synthesis by catalytic reduction of NO with hydrogen.

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