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Effect of SO2 on NOx Removal Performance in Low Temperature Region over V2O5-Sb2O3/TiO2 SCR Catalyst Washcoated on the Metal Foam
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  • Journal title : Clean Technology
  • Volume 22, Issue 2,  2016, pp.132-138
  • Publisher : The Korean Society of Clean Technology
  • DOI : 10.7464/ksct.2016.22.2.132
 Title & Authors
Effect of SO2 on NOx Removal Performance in Low Temperature Region over V2O5-Sb2O3/TiO2 SCR Catalyst Washcoated on the Metal Foam
Na, Woo-Jin; Park, Young-Jin; Bang, Hyun-Seok; Bang, Jong-Seong; Park, Hea-Kyung;
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 Abstract
The emission of SO2 is inevitable in case of combustion of most fossil fuels except LNG in commercial power plant which has a bad effect on the durability of SCR catalyst. To develop a low temperature SCR catalyst which has a high NOx removal performance and excellent durability to SO2, V2O5/TiO2 catalysts were prepared by coating on the metal foam substrate with the impregnation amount of Sb2O3 as promotor. This study has evaluated the NOx removal performance and the durability to SO2 on a laboratory scale atmospheric reactor and analyzed the properties of the prepared catalysts by means of porosimeter, BET, SEM (scanning electron microscope), EDX (energy dispersive x-ray spectrometer), XPS (X-ray photoelectron spectroscopy). It was found that the surface area of catalyst increased with the impregnation amount of Sb2O3 and the NOx removal performance showed the highest value at the 2 wt% impregnation of Sb2O3. This results was considered to be due to the optimum active site on the catalyst surface. And also, Sb2O3 impregnated catalysts presented that NOx removal performance was maintained despite the exposure to SO2 for 5 hours. Therefore it was confirmed that metal foam SCR catalyst for low temperature could be manufactured with the optimum control of Sb2O3 impregnation according to the SO2 presence or not.
 Keywords
SCR catalyst;NOx removal performance;Durability to SO2;Metal foam;
 Language
Korean
 Cited by
 References
1.
Vargas, M. A. L., Casanova, M., Trovarelli, A., and Busca, G., “An IR Study of Thermally Stable V2O5-WO3/TiO2 SCR Catalysts Modified with Silica and Rare-earths (Ce, Tb, Er),” Appl. Catal. B : Environ., 75, 303-304 (2007). crossref(new window)

2.
Kobayashi, M., and Miyoshi, K., “WO3-TiO2 Monolithic Catalysts for High Temperature SCR of NO by NH3 : Influence of Preparation Method on Structural and Physico-Chemical Properties, Activity and durability,” Appl. Catal. B : Environ., 72, 253-254 (2007). crossref(new window)

3.
Bosch, H., and Janssen, F., “Catalytic Reduction of Nitrogen Oxides-a Review on the Fundamentals and Technology,” Catal. Today, 2, 369-532 (1988). crossref(new window)

4.
Choi, S. K., and Choi, S. W., “Low Temperature Selective Catalytic Reduction of NO with NH3 over Mn-V2O5/TiO2,” J. Envi. Sci. Intern., 15(4), 333-340 (2006). crossref(new window)

5.
Jang, B. J., "The Research of Reaction Characteristic and the Improvement of Efficiency of TiO2 Catalyst for SCR in High Temperature," M.S. Thesis, Kyonggi University, Suwon (2009).

6.
Lee, S. M., "A Study on the Reaction Characteristics and Mechanism of the SCR over W/TiO2 Catalyst at High Temperature," M.S. Thesis, Kyonggi University, Suwon (2010).

7.
Kim, S. S., and Hong, S, Ch., “The Emission of NO2 and NH3 in Selective Catalytic Reduction over Manganese Oxide with NH3 at Low Temperature,” J. Korean Ind. Eng. Chem., 18(3), 225-261 (2007).

8.
Park, K. H., "A Study on the Correlation between Specific of V/TiO2 Catalyst for SCR and Durability of SO2," M.S. Thesis, Kyonggi University, Suwon (2007).

9.
Hong, S. Ch., “The Effect of SO2 in Flue Gas on the SCR Activity Of V/TiO2,” J. Korean Ind. Eng. Chem, 17(5), 490-497 (2006).

10.
Lietti, L., “Reactivity of V2O5-WO3/TiO2 deNOx Catalysts by Transient Methods,” Appl. Catal. B : Environ., 10, 281-297 (1996). crossref(new window)

11.
Burch, R., and Millington, P. J., “Selective Reduction of Nitrogen Oxide by Hydrocarbons under Lean-burn Conditions Using Supported Platinum Group Metal Catalysts,” Catal. Today, 26, 185-206 (1995). crossref(new window)

12.
Inomata, M., Mori, K., Miyamoto, A., Ui, T., and Murakami, Y., “Structures of Supported Vanadium Oxide Catalysts. 1. Vanadium (V) Oxide/Titanium Dioxide (anatase), Vanadium (V) Oxide/titanium Dioxide (rutile), and Vanadium (V) Oxide/Titanium Dioxide (Mixture of Anatase with Rutile),” J. Phys. Chem., 87(5) 754-761 (1983). crossref(new window)

13.
Teng, H., and Huang, T. S., “Control of NOx Emissions through Combustion Modifications for Reheating Furnaces in Steel Plants,” Fuel, 75(2), 149-156 (1996). crossref(new window)

14.
Forzatti, P., and Lietti, L., “Selective Catalytic Reduction of NOx by NH3 from Stationary Sources,” J. La Chim. Ind., 78(6), 685-691 (1996).

15.
Khodayari, R., and C. U. Ingemar, O., “Deactivating Effects of Lead on the Selective Catalytic Reduction of Nitric Oxide with Ammonia over a V2O5-WO3/TiO2 Catalyst for Waste Incineration Applications,” lnd. Eng. Chem. Res., 37(4), 1196-1202 (1998). crossref(new window)

16.
Ryi, S. K., Park, J. S., Choi, S. H., Cho, S. H., and Kim, S. H., “Novel Micro Fuel Processor for PEMFCs with Heat Generation by Catalytic Combustion,” Chem. Eng. J., 113(1), 47-53 (2005). crossref(new window)

17.
Oh, J. K., Lee, J. M., Lee, E. S., Park, M. H., Oh, K. O., and Lee, B. H., “A Study on Prediction of Pressure Drop of Metal Foam,” pp. 782-786, KSAE 2009 Annual Conference, Songdo, Incheon (Nov. 2009).

18.
Silversmit, G., Depla, D., Poelman, H, Marin, G. B., and De Gryse, “Determination of V2p XPS Binding Energies for Different Vanadium Oxidation States (V5+ to V0+),” J. Electron Spectrosc. Relat. Phenom., 135, 167-175 (2004). crossref(new window)