Particle and aerosol research (한국입자에어로졸학회지)

Korean Association for Particle and Aerosol Research (한국입자에어로졸학회)
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Characteristics of Mercury Oxidation by an SCR Catalyst with Gas Composition

가스조성에 따른 선택적 환원촉매의 수은 산화 특성

  • Lee, Sang-Sup (Department of Environmental Engineering, Chungbuk National University) ;
  • Kim, Kwang-Yul (Department of Environmental Engineering, Chungbuk National University) ;
  • Oh, Kwang-Joong (Department of Environmental Engineering, Pusan National University) ;
  • Jeon, Jun-Min (Department of Environmental Engineering, Pusan National University) ;
  • Kim, Do-Jeung (Hanmo corporation) ;
  • Kim, Ju-Yeong (Department of Environmental Engineering, Chungbuk National University)
  • Published : 2012.12.31
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Abstract

Mercury oxidation in an SCR(selective catalytic reduction) catalyst was tested in this study with the conditions simulating the SCR system in full-scale coal-fired flue gas. A commercially available SCR catalyst was located in a temperature-controlled reactor system, and simulated gas was injected into the reactor. Mercury oxidation efficiency was determined from the difference between inlet and outlet elemental mercury concentrations. A control experiment was carried out with the gas composition of 12% $CO_{2}$, 5% $H_{2}O$, 5% $O_{2}$, 500 ppm $SO_{2}$, 400 ppm NO, 400 ppm $NH_{3}$, 5 ppm HCl, and 20 ${\mu}g/m^{3}$ Hg. Additional tests were conducted with different gas composition from the control condition to investigate the effect of gas composition on mercury oxidation in the SCR catalyst.

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References

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