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Removal of NO Using CuO/3Al2O3 · 2SiO2 Catalyst Impregnated Ceramic Candle Filters  

홍민선 (아주대학교 환경ㆍ도시공학부)
문수호 (아주대학교 환경ㆍ도시공학부)
이재춘 (명지대학교 무기재료공학)
이동섭 (경운대학교 보건환경학부)
Publication Information
Journal of Korean Society for Atmospheric Environment / v.20, no.3, 2004 , pp. 291-302 More about this Journal
Abstract
The CuO/$3AL_2O_3{\cdot}2SiO_2$ catalyst impregnated ceramic candle filters for nitrogen oxides removal were prepared by porous mullite($3AL_2O_3{\cdot}2SiO_2$) support and CuO catalyst deposited on this support to achieve uniformly dispersed CuO deposition, which are impregnated into the pores of available alumino-silicate ceramic candle filter. The CuO/3$AL_2O_3{\cdot}2SiO_2$ catalyst impregnated ceramic candle filters were characterized by XRD, BET, air permeability, pore size, SEM and catalytic tests in the reduction of NOx by NH$_3$. The observed effects of CuO/3$AL_2O_3{\cdot}2SiO_2$ impregnated ceramic candle filters in SCR reaction are as follows : (1) when the content of CuO catalyst increased further, activity of NO increased. (2) NO conversion at first increased with temperature and then decreased at high temperatures (above 40$0^{\circ}C$), possibly due to the occurrence of the ammonia oxidation reaction. (3) In pilot plant test for 3 months, NO conversion was greater than 90%.
Keywords
CuO; Catalyst; Ceramic candle filter; Mullite; SCR; Activity; NO conversion;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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