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http://dx.doi.org/10.7464/ksct.2021.27.4.315

A Study on NH3-SCR Vanadium-Based Catalysts according to Tungsten Content for Removing NOx Generated from Biogas Cogeneration  

Jung, Min Gie (Department of Environmental Energy Engineering, Graduate school of Kyonggi University)
Hong, Sung Chang (Department of Environmental Energy Engineering, Kyonggi University)
Publication Information
Clean Technology / v.27, no.4, 2021 , pp. 315-324 More about this Journal
Abstract
In this study, a vanadium catalyst study was conducted on the various characteristics of the exhaust gas in the Selective-Catalytic-Reduction (SCR) method in which nitrogen oxides emitted from cogeneration using biogas are removed by using ammonia as a reducing agent and a catalyst. V/W/TiO2, a commercial catalyst, was used as the catalyst in this study, and the effect was confirmed according to the tungsten content under various operating conditions. As a result of the NH3-SCR experiment, the denitrification performance was confirmed at 380 ~ 450 ℃ more than 95%, and durability to trace amounts of SO2 was confirmed through the SO2 durability experiment and TGA analysis. As a result of H2-TPR analysis, the higher the tungsten content, the better the redox properties. Accordingly, enhanced oxidizing properties were confirmed in the oxidation test for a trace amount of carbon monoxide emitted from the cogeneration. In NH3-DRIFTs analysis, it was confirmed that the higher the tungsten content, the higher both the Bronsted/Lewis acid sites and the better the thermal durability when tungsten is added to the catalyst. Based on the experiments under various operating conditions, it is considered that a catalyst with a high tungsten content is suitable to be applied to cogeneration using biogas.
Keywords
$NH_3$-SCR; NOx; Biogas; Catalyst; Vanadium;
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1 Busca, G., Lietti, L., Ramis, G., and Berti, F., "Chemical and Mechanistic Aspects of the Selective Catalytic Reduction of NOx by Ammonia Over Oxide Catalysts: A Review," Appl. Catal. B, 18(1-2), 1-36 (1998).   DOI
2 Kang, D.-W., Kang, S.-Y., Kim, T.-S., and Hur, K.-B., "Performance Evaluation of a Steam Injected Gas Turbine CHP System Using Biogas as Fuel," Korean Soc. Fluid Mach., 13(6), 57-62 (2010).   DOI
3 Kang, D.-W., Shin, H.-D., Kim, T.-S., Hur, K.-B., and Park, J.-K., "Operating Characteristics Study of a Small Gas/Steam Turbine Combined System Using Biogas," Korean Soc. Fluid Mach., 15(3), 51-56 (2012).
4 Kim, K. M., "Bio-energy and Biogas Plant Technology Trend," Korean Ind. Chem. News, 11(3), 11-22 (2008).
5 Lietti, L., Forzatti, P., and Bregani, F., "Steady-State and Transient Reactivity Study of TiO2-Supported V2O5-WO3 DeNOx Catalysts : Relevance of the Vanadium-Tungsten Interaction on the Catalytic Activity," Ind. Eng. Chem. Res., 35(11), 3884-3892 (1996).   DOI
6 Shen, J., and Hess, C., "High Surface Area VOx/TiO2/SBA-15 Model Catalysts for Ammonia SCR Prepared by Atomic Layer Deposition," Catalysts, 10(12), 1386 (2020).   DOI
7 Song, I., Lee, H., Jeon, S. W., and Kim, D. H., "Understanding the Dynamic Behavior of Acid Sites on TiO2-supported Vanadia Catalysts Via Operando DRIFTS Under SCR-relevant Conditions," J. Catal., 382, 269-279 (2020).   DOI
8 Na, W.-J., Park, Y.-J., Bang, H.-S., Bang, J.-S., and Park, H.-K., "Effect of SO2 on NOx Removal Performance in Low Temperature Region over V2O5-Sb2O3/TiO2 SCR Catalyst Washcoated on the Metal Foam," Clean Technol., 22(2), 132-138 (2016).   DOI
9 Na, W.-J., and Park, H.-K., "A Study on the NOx Reduction According to the Space Velocity Variation and Binder Content of Metal foam SCR Catalyst for Cogeneration Power Plant Application," Korean Appl. Sci. Tech., 36(1), 153-164 (2019).
10 Lietti, L., Alemany, J. L., Forzatti, P., Busca, G., Ramis, G., Giamello, E., and Bregani, F., "Reactivity of V2O5-WO3/TiO2 Catalysts in the Selective Catalytic Reduction of Nitric Oxide by Ammonia," Catal. Today, 29(1-4), 143-148 (1996).   DOI
11 Forzatti, P., "Present Status and Perspectives in de-NOx SCR Catalysis," Appl. Catal. A: Gen., 222(1-2), 221-236 (2001).   DOI
12 Alemany, L. J., Berti, F., Busca, G., Ramis, G., Robba, D., and Toledo, G. P., Trombetta, M., "Characterization and Composition of Commercial V2O5-WO3-TiO2 SCR Catalysts," Appl. Catal. B, 10(4), 299-311 (1996).   DOI
13 Ma, Z., Weng, D., Wu, X., and Si, Z., "Effects of WOx Modification on the Activity, Adsorption and Redox Properties of CeO2 Catalyst for NOx Reduction with Ammonia," J. Environ. Sci., 24(7), 1305-1316 (2012).   DOI
14 Ma, Z., Wu, X., Harelind, H., Weng, D., Wang, B., and Si, Z., "NH3-SCR Reaction Mechanisms of NbOx/Ce0.75Zr0.25O2 Catalyst: DRIFTS and Kinetics Studies," J. Mol. Catal. A: Chem., 423, 172-180 (2016).   DOI
15 Lin, Q., Li, J., Ma, L., and Hao, J., "Selective Catalytic Reduction of NO with NH3 over Mn-Fe/USY Under Lean Burn Conditions," Catalysis Today, 151(3-4), 251-256 (2010).   DOI
16 Phil, H. H., Reddy, M. P., Kumar, P. A., Ju, L. K., and Hyo, J. S., "SO2 Resistant Antimony Promoted V2O5/TiO2 Catalyst for NH3-SCR of NOx at Low Temperatures," Appl. Catal. B, 78(3-4), 301-308 (2008).   DOI
17 Lee, S., Park, S., Park, C., Kim, C., Lee, J., and Woo, S., "Effects of Inert Gas Composition Variations in Biogas on the Performance of a SI Engine," J. Korean Inst. Gas, 16(5), 14-20 (2012).   DOI
18 Engweiler, J., Harf, J., and Baiker, A., "WOx/TiO2 Catalysts Prepared by Grafting of Tungsten Alkoxides: Morphological Properties and Catalytic Behavior in the Selective Reduction of NO by NH3," J. Catal., 159(2), 259-269 (1996).   DOI
19 Svachula, J., Alemany, L. J., Ferlazzo, N., Forzatti, P., Tronconi, E., and Bregani, F., "Oxidation of Sulfur Dioxide to Sulfur Trioxide over Honeycomb DeNOxing Catalysts," Ind. Eng. Chem. Res., 32(5), 826-834 (1993).   DOI
20 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, 72(3-4), 253-261 (2007).   DOI
21 Casagrande, L., Lietti, L., Nova, I., Forzatti, P., and Baiker, A., "SCR of NO by NH3 over TiO2-supported V2O5-MoO3 Catalysts: Reactivity and Redox Behavior," Appl. Catal. B, 22(1), 63-77 (1999).   DOI
22 Komatsubara, Y., Ida, S., Fujitsu, H., and Mochida, I., "Catalytic Activity of PAN-based Active Carbon Fibre (Pan-Acf) Activated with Sulphuric Acid for Reduction of Nitric Oxide with Ammonia," Fuel, 63(12), 1738-1742 (1984).   DOI
23 Hwang, S., Jo, S.-H., Kim, J., Shin, M.-C., Chun, H. H., Park, H., and Lee, H., "Catalytic Activity of MnOx/TiO2 Catalysts Synthesized with Different Manganese Precursors for the Selective Catalytic Reduction of Nitrogen Oxides," Reac. Kinet. Mech. Cat., 117, 583-591 (2016).   DOI
24 Xu, Y., Wu, X., Lin, Q., Hu, J., Ran, R., and Weng, D., "SO2 Promoted V2O5-MoO3/TiO2 Catalyst for NH3-SCR of NOx at Low Temperatures," Appl. Catal. A: Gen., 570, 42-50 (2019).   DOI
25 Topsoe, N.-Y., Anstrom, M., and Dumesic, J. A., "Raman, FTIR and Theoretical Evidence for Dynamic Structural Rearrangements of Vanadia/titania DeNOx Catalysts," Catal. Lett., 76(1-2), 11-20 (2001).   DOI
26 Xiong, S., Xiao, X., Liao, Y., Dang, H., Shan, W., and Yang, S., "Global Kinetic Study of NO Reduction by NH3 over V2O5-WO3/TiO2 : Relationship between the SCR Performance and the Key Factors," Ind. Eng. Chem. Res., 54(44), 11011-11023 (2015).   DOI
27 Odenbrand, C. U. I., Gabrielsson, P. L. T., Brandin, J. G. M., and Andersson, L. A. H., "Effect of Water Vapor on the Selectivity in the Reduction of Nitric Oxide with Ammonia over Vanadia Supported on Silica-Titania," Appl. Catal., 78(1), 109-122 (1991).   DOI