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Deactivation of SCR Catalysts Applied in Power Plants
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화력발전소 SCR 촉매의 활성저하 특성

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Type
Academic journal
Author
Lee, Jung-Bin (한국전력연구원 녹색성장연구소) Kim, Dong Wha (한국전력연구원 녹색성장연구소) Lee, Chang-Yong (공주대학교 환경공학과)
Journal
The Korean Society Of Industrial And Engineering Chemistry 공업화학 공업화학 제21권 제1호 KCI Accredited Journals
Published
2010.1
Pages
104 - 110 (7page)

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Deactivation of SCR Catalysts Applied in Power Plants
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Deactivation of SCR catalysts applied in coal, orimulsion, and LNG power plants in Korea were studied for the regeneration of the deactivated catalyst. The catalysts were characterized by XRD, ICP-AES, BET and SEM, and were examined for ammonia SCR. Deactivation of SCR catalyst applied in coal power plant was mainly caused by the blockade of the pore due to the deposition of sulfate and particulate related to the ingredients of the fuel. The surface area of SCR catalyst applied in orimulsion power plant decreased considerably by the accumulation of the compounds of vanadium, sulfur, and magnesium on the surface of the catalyst. The compounds of vanadium and sulfur were related to the ingredients of the fuel, and the compound of magnesium was related to the additive of the fuel. The activity of the deactivated catalyst for ammonia SCR, however, decreased slightly. Despite the long use for more than two-year, deactivation of SCR catalyst applied in LNG power plants hardly occurred.
#$NH_3-SCR$ #$V_2O_5/TiO_2$ #deactivation #power plant

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