SO_x 함유 HC-SCR에서 산처리 Ag/Al_2O_3 촉매의 반응 특성Effect of SO_x on HC-SCR Kinetics over Ag/Al_2O_3 Catalyst
- Other Titles
- Effect of SO_x on HC-SCR Kinetics over Ag/Al_2O_3 Catalyst
- Authors
- 이주헌; 박정환; 김성수; 유승준; 김진걸
- Issue Date
- 2011
- Publisher
- 한국수소및신에너지학회
- Keywords
- 에탄올; 환원; 산처리; 질소 산화물 제거; Ag/Al_2O_3; ethanol; Reduction; Acid-treated; NO_x removal
- Citation
- 한국수소및신에너지학회논문집, v.22, no.5, pp 714 - 720
- Pages
- 7
- Journal Title
- 한국수소및신에너지학회논문집
- Volume
- 22
- Number
- 5
- Start Page
- 714
- End Page
- 720
- URI
- https://scholarworks.bwise.kr/sch/handle/2021.sw.sch/17029
- ISSN
- 1738-7264
2288-7407
- Abstract
- Ethanol was used as reducing agent to remove NO_x exhaust from the stationary source. Pre-treatment with sulfuric acid over Ag/Al_2O_3 catalyst was dedicated to overcome the SO_2 poisoning effect. The NO_x reduction experiment was performed under the simulated condition of power plant The increased surface area with higher CPSI devoted to increase de-NO_x yield. De-NO_x yield of the NO_x exhaust containing 20 ppm of SO_2 increased after acid treatment with 0.7% H_2SO_4 over 4.0% Ag/Al_2O_3,where the increased dispersion of Ag found from the results of XRD and XPS was the dominant factor for the increased de-NO_x yield. However, the reason for the decreased de-NO_x yield with the acid treatment of higher concentration (1.0% and 2.0%) of H_2SO_4 was found to be due to the formation of Ag_2SO_4 crystallites found from XRD result. Acid-treated Ag/Al_2O_3 catalyst showed maximum de-NO_x yield at higher temperature than non-treated Ag/Al_2O_3 catalyst did.
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