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|Title:||Zeolite supported iron catalyst for nitric oxide reduction by ammonia in the presence of oxygen|
|Authors:||Salker, A V|
|Series/Report no.:||C01 B 21/24, BOI J 29/064|
|Abstract:||Iron based H-ZSM-5 catalysts were used to study NO reduction with NH<sub>3</sub> in the presence of oxygen with and without humid conditions. The iron based H-ZSM-5 was prepared by wet impregnation method and characterized by X-ray diffraction technique, BET surface area and SEM. TPD experiments showed low and high temperature NH<sub>3</sub> desorption peaks. FTIR indicated only ammonia adsorbed species. Fe/ZSM-5 showed better NO<sub>x</sub> reduction with NH<sub>3</sub> than H-ZSM-5 which was a poor catalyst for the NO<sub>x</sub> reduction. The catalytic activity did not show significant difference in the NO<sub>x</sub> conversion with and without water, but there was significant difference in NH<sub>3</sub> conversion. It may be said that the dispersed Fe species and acid sites were the active centers for the reduction of NO with NH<sub>3</sub> in the presence of oxygen.|
|ISSN:||0975-0991 (Online); 0971-457X (Print)|
|Appears in Collections:||IJCT Vol.11(5) [September 2004]|
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