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Selective Catalytic Reduction of NOx by Ammonia over Fe-ZSM-5 Catalyst

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Abstract:

Fe-ZSM-5 catalysts were synthesized by hydrothermal method under different levels of iron loading. The result of XRD and TG/DTA showed that Fe-ZSM-5 catalysts were successfully obtained after calcination at 550 °C. The effects of Si/(Fe+Al) and Fe/Al ratio on the SCR performance of Fe-ZSM-5 catalyst were investigated in a simulated flue gas. When Si/(Fe+Al)=20 and Fe:Al=20 Fe-ZSM-5 catalyst showed excellent catalytic activity. Under the condition of 210 °C, [NH3]/[NO] of 1.2, [O2] of 6 vol%, [NOx] of 900×10-6, Si/(Fe+Al)=20 and Fe/Al=1, NOx conversion exceeds 98%. Besides, Fe-ZSM-5 catalyst was excellently resistant to SO2 and H2O in the SCR reaction.

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Periodical:

Advanced Materials Research (Volumes 550-553)

Pages:

230-233

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.550-553.230

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Online since:

July 2012

Authors:

Luo Ning Ma, Hong Xia Qu, Qin Zhong, Jie Zhang, Qi Sheng Tang

Keywords:

Fe-ZSM-5, Hydrothermal Synthesis, NOx, SCR

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© 2012 Trans Tech Publications Ltd. All Rights Reserved

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