LITERATURE STUDY OF THE EFFECT ON DOPING COMPONENT ON THE CE-TI OXIDE CATALYST FOR FLUE GAS DENITRATION WITH NH3-SCR

Rias Becik Sinawang, Cucuk Evi Lusiani

Abstract


The Ce-Ti oxide catalyst is viewed as an innovation for the reduction of nitrogen oxide (NOx) and owns outstanding activity in ammonia-selective catalytic reduction (NH3-SCR) that became the most used denitration reaction in industry. In the flue gas, there will be many substances that inhibit the catalytic activity. Therefore, adding some components to the Ce-Ti oxide catalyst can be a solution. The aim of this literature study is to analyze the effect of doping components (Fe, Zr, Cu, K) on Ce-Ti oxide catalyst in the NH3-SCR reaction. Several theories and data methods were collected by comparing data based on catalytic activity and characterization of the catalysts. The activity of the catalyst was obtained by calculating the NOx conversion. The characterization of the catalysts was detected by BET, H2-TPR, NH3-TPD, and XPS. The analysis based on the literature study exhibited a catalyst with the best activities, structures, and properties required to successfully reduce NOx. The results indicate that the effect on doping components of Fe, Zr, and Cu can enhance the characteristics and protect the reduction ability, whilst the doping of K decreases surface acidity and reducibility on Ce-Ti oxide catalyst.


Keywords


catalytic activity, characterization, denitration, flue gas, NH3-SCR

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References


F. Liu, Y. Yu, and H. He, “Environmentally-benign catalysts for the selective catalytic reduction of NOx from diesel engines: structure-activity relationship and reaction mechanism aspects,” Chem. Commun., vol. 50, no. 62, pp. 8445–8463, 2014, doi: 10.1039/C4CC01098A.

X. Wang et al., “Understanding the deposition and reaction mechanism of ammonium bisulfate on a vanadia SCR catalyst: A combined DFT and experimental study,” Appl. Catal. B Environ., vol. 260, p. 118168, 2020, doi: https://doi.org/10.1016/j.apcatb.2019.118168.

X. Xie, J. Lu, E. Hums, Q. Huang, and Z. Lu, “Study on the deactivation of V2O5-WO3/TiO2 selective catalytic reduction catalysts through transient kinetics,” Energy and Fuels, vol. 29, no. 6, pp. 3890–3896, 2015, doi: 10.1021/acs.energyfuels.5b01034.

Y. Shen and S. Zhu, “Deactivation mechanism of potassium additives on Ti0.8Zr0.2Ce0.2O2.4 for NH3-SCR of NOx” Catal. Sci. Technol., vol. 2, no. 9, pp. 1806–1810, 2012, doi: 10.1039/C2CY20238G.

X. Gao, Y. Jiang, Y. Fu, Y. Zhong, Z. Luo, and K. Cen, “Preparation and characterization of CeO2/TiO2 catalysts for selective catalytic reduction of NO with NH3,” vol. 11, pp. 465–469, 2010, doi: 10.1016/j.catcom.2009.11.024.

X. Du, X. Gao, R. Qu, P. Ji, Z. Luo, and K. fa Cen, “The Influence of Alkali Metals on the Ce-Ti Mixed Oxide Catalyst for the Selective Catalytic Reduction of NOx,” ChemCatChem, vol. 4, no. 12, pp. 2075–2081, 2012, doi: 10.1002/cctc.201200316.

Z. Liu et al., “A superior catalyst with dual redox cycles for the selective reduction of NOx by ammonia,” Chem. Commun., vol. 49, no. 70, pp. 7726–7728, 2013, doi: 10.1039/C3CC43041C.

Y. Peng et al., “Alkali Metal Poisoning of a CeO2-WO3 Catalyst Used in the Selective Catalytic Reduction of NOx with NH3: an Experimental and Theoretical Study,” Environ. Sci. Technol., vol. 46, no. 5, pp. 2864–2869, Mar. 2012, doi: 10.1021/es203619w.

Z. Liu, Y. Liu, B. Chen, T. Zhu, and L. Ma, “Novel Fe-Ce-Ti catalyst with remarkable performance for the selective catalytic reduction of NOx by NH3,” Catal. Sci. Technol., vol. 6, no. 17, pp. 6688–6696, 2016, doi: 10.1039/C5CY02278A.

A. Shi, X. Wang, T. Yu, and M. Shen, “The effect of zirconia additive on the activity and structure stability of V2O5/WO3-TiO2 ammonia SCR catalysts,” Appl. Catal. B Environ., vol. 106, no. 3, pp. 359–369, 2011, doi: https://doi.org/10.1016/j.apcatb.2011.05.040.

Z. Fei et al., “Precisely fabricating Ce-O-Ti structure to enhance performance of Ce-Ti based catalysts for selective catalytic reduction of NO with NH3,” Chem. Eng. J., vol. 353, no. July, pp. 930–939, 2018, doi: 10.1016/j.cej.2018.07.198.

K. Kang et al., “Enhancing the K resistance of CeTiOx catalyst in NH3-SCR reaction by CuO modification,” J. Hazard. Mater., vol. 402, no. May 2020, p. 123551, 2021, doi: 10.1016/j.jhazmat.2020.123551.

K. Kang et al., “Insights into the co-doping effect of Fe3+ and Zr4+ on the anti-K performance of CeTiOx catalyst for NH3-SCR reaction,” J. Hazard. Mater., vol. 416, no. January, p. 125821, 2021, doi: 10.1016/j.jhazmat.2021.125821.

D. W. Kwon and S. C. Hong, “Promotional effect of tungsten-doped CeO2/TiO2 for selective catalytic reduction of NOx with ammonia,” Appl. Surf. Sci., vol. 356, pp. 181–190, 2015, doi: 10.1016/j.apsusc.2015.08.073.

L. Chen, X. Yao, J. Cao, F. Yang, C. Tang, and L. Dong, “Effect of Ti4+ and Sn4+ co-incorporation on the catalytic performance of CeO2-MnOx catalyst for low temperature NH3-SCR,” Appl. Surf. Sci., vol. 476, pp. 283–292, 2019, doi: https://doi.org/10.1016/j.apsusc.2019.01.095.

X. Yao et al., “Investigation of the structure, acidity, and catalytic performance of CuO/Ti0.95Ce0.05O2 catalyst for the selective catalytic reduction of NO by NH3 at low temperature,” Appl. Catal. B Environ., vol. 150–151, pp. 315–329, 2014, doi: https://doi.org/10.1016/j.apcatb.2013.12.007.

Y. Peng, K. Li, and J. Li, “Identification of the active sites on CeO2-WO3 catalysts for SCR of NOx with NH3: An in situ IR and Raman spectroscopy study,” Appl. Catal. B Environ., vol. 140–141, pp. 483–492, 2013, doi: https://doi.org/10.1016/j.apcatb.2013.04.043.

S. Deng, K. Zhuang, B. Xu, Y. Ding, L. Yu, and Y. Fan, “Promotional effect of iron oxide on the catalytic properties of Fe-MnOx/TiO2 (anatase) catalysts for the SCR reaction at low temperatures,” Catal. Sci. Technol., vol. 6, no. 6, pp. 1772–1778, 2016, doi: 10.1039/C5CY01217A.

Z. Liu, Y. Yang, J. Mi, X. Tan, and Y. Song, “Synthesis of copper-containing ordered mesoporous carbons for selective hydrogenation of cinnamaldehyde,” Catal. Commun., vol. 21, pp. 58–62, 2012, doi: https://doi.org/10.1016/j.catcom.2012.01.024.

Y. Jiang et al., “Effect of Ca Doping on the Selective Catalytic Reduction of NO with NH3 Over Ce-Ti Oxide Catalyst,” Catal. Letters, vol. 148, no. 9, pp. 2911–2917, 2018, doi: 10.1007/s10562-018-2494-1.

X. Chen et al., “CeO2 nanodots embedded in a porous silica matrix as an active yet durable catalyst for HCl oxidation,” Catal. Sci. Technol., vol. 6, no. 13, pp. 5116–5123, 2016, doi: 10.1039/C5CY02300A.

H. Li, C.-Y. Wu, Y. Li, and J. Zhang, “Superior activity of MnOx-CeO2/TiO2 catalyst for catalytic oxidation of elemental mercury at low flue gas temperatures,” Appl. Catal. B Environ., vol. 111–112, pp. 381–388, 2012, doi: https://doi.org/10.1016/j.apcatb.2011.10.021.




DOI: http://dx.doi.org/10.33795/distilat.v8i1.328

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