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http://dx.doi.org/10.12925/jkocs.2019.36.1.153

A Study on the NOx Reduction According to the Space Velocity Variation and Binder Content of Metal foam SCR Catalyst for Cogeneration Power Plant Application  

Na, Woo-Jin (Department of Chemical Engineering, Hanseo University)
Park, Hea-Kyung (Department of Chemical Engineering, Hanseo University)
Publication Information
Journal of the Korean Applied Science and Technology / v.36, no.1, 2019 , pp. 153-164 More about this Journal
Abstract
To develop a high performance SCR catalyst which has better specific surface area, lightness of weight and fast temperature response than those of existing commercial SCR catalyst, metal foam type SCR catalysts were prepared by washcoating with vanadium, tungsten and binder. The de-NOx performance test of the prepared catalysts was carried out on atmospheric micro-test unit at lab. scale according to space velocity variation and temperature change, and the characteristics of them were analyzed by Porosimeter, SEM(scanning electron microscope), EDX(energy dispersive x-ray spectrometer), ICP(inductively coupled plasma) and Stereomicroscope. The NOx reduction performance decreased as the space velocity increased and was found to be the best at 3.5 wt.% contents of the vanadium and tungsten. It was found that the larger amount of binder was added, the worse the NOx reduction performance was, which was considered to be that the number of active sites of the prepared catalyst surface was occupied by the binder. We found that the amount of binder to be added to prepare the catalyst should be properly controlled by the condition of coated catalyt surface.
Keywords
SCR catalyst; NOx; Metal foam; Wash coating;
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Times Cited By KSCI : 1  (Citation Analysis)
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