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http://dx.doi.org/10.14478/ace.2015.1090

A Study on the Reaction Characteristics and Efficiency Improvement of High-temperature SCR Catalyst  

Nam, Ki Bok (Department of Environmental Energy Systems Engineering, Graduate school of Kyonggi University)
Kang, Youn Suk (Department of Environmental Energy Systems Engineering, Graduate school of Kyonggi University)
Hong, Sung Chang (Department of Environmental Energy Systems Engineering, Kyonggi University)
Publication Information
Applied Chemistry for Engineering / v.26, no.6, 2015 , pp. 666-673 More about this Journal
Abstract
In this paper the selective reduction catalyst (SCR) for controlling the NOx at high temperature range was studied. XRD and FT-IR BET analysis was also performed to determine the structural properties and adsorption/desorption characteristics of the catalyst. In the case of anatase $TiO_2$ support, a negligible NOx conversion was observed, but the $W/TiO_2$ catalyst made using W as a active metal showed an excellent ability to remove NOx. In particular, the $W/TiO_2$ exhibited a rapid increase in the catalytic activity due to the presence of W for the NOx conversion compared to that of using the pure $TiO_2$ at a high temperature range over $400^{\circ}C$. In addition, the phenomenon of reduced reaction activity due to the heat shock for a long time was found to be suppressed.
Keywords
NOx; $TiO_2$; Catalyst; W; metal;
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