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http://dx.doi.org/10.9713/kcer.2017.55.5.679

Effect of Metal Loading Methods on the Catalytic Activity for N2O/NO Simultaneous Reduction over Fe/BEA Zeolite Catalyst  

Jeon, Min-Wook (Korea Institute of Energy Research)
Lee, Seung-Jae (Korea Institute of Energy Research)
Ryu, In-Soo (Korea Institute of Energy Research)
Moon, Seung-Hyun (Korea Institute of Energy Research)
Rhee, Young Woo (Department of Chemical Engineering, Chungnam National University)
Jeon, Sang Goo (Korea Institute of Energy Research)
Publication Information
Korean Chemical Engineering Research / v.55, no.5, 2017 , pp. 679-684 More about this Journal
Abstract
The influence of catalytic activity on Fe loading methods over Fe/BEA zeolite catalyst in the simultaneous reduction of $N_2O/NO$ has been studied. The Fe/BEA zeolite catalysts were prepared by ion exchange and impregnation. Catalytic tests were carried out in the selective catalytic reduction using ammonia as a reductant to identify the activity of prepared catalysts. The results show that the ion exchanged catalyst exhibited higher NO and $N_2O$ conversions than the impregnated catalysts did. To investigate the difference in catalytic activity, we performed various analyses such as XRD, $H_2-TPR$, $O_2-TPD$ and XPS. It is considered that the increase in the activity of the ion exchange catalyst is due to improved reducibility and increased oxygen desorption rate. In addition, the ion exchange catalyst was found through the XPS analysis that $Fe^{2+}$, which is related to the catalytic activity, is formed about 1.6 times more than the impregnated catalyst.
Keywords
Metal loading methods; Nitrous oxide; Nitric oxide; Fe/BEA-zeolite; Simultaneous catalytic reduction;
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Times Cited By KSCI : 1  (Citation Analysis)
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