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La Modified Fe–Mn/TiO2 Catalysts to Improve SO2 Resistance for NH3-SCR at Low-Temperature

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Abstract

La modified TiO2 prepared by sol–gel method as the support of Fe–Mn/TiO2(xLa) catalyst significantly improved SO2 resistance. La inhibited the growth of TiO2 particle, and led to the obvious layered structure of TiO2 and more mesopores, which accelerated the decomposition of ammonium sulfate. The increase of Brønsted acid sites and the electron transfer between La and active components Fe and Mn in La doped catalysts inhibit the adsorption and oxidation of SO2 on the catalyst, thus improving the SO2 resistance.

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Acknowledgments

This work was supported by Foundation of Hebei (in China) Education Department (ZD2015116) and Foundation of Hebei Province of China (B2017209111).

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Authors and Affiliations

  1. College of Chemical Engineering, North China University of Science and Technology, Tangshan, Hebei, 063210, People’s Republic of China

    Xinxin Hou, Hongping Chen, Yinghua Liang, Yonglin Wei & Zeqing Li

  2. Department of Chemical Engineering, Xinjiang University of Science and Technology, Korla, Xinjiang, 841000, People’s Republic of China

    Hongping Chen

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  1. Xinxin Hou
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  2. Hongping Chen
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  3. Yinghua Liang
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  4. Yonglin Wei
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Correspondence to Hongping Chen or Yinghua Liang.

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Hou, X., Chen, H., Liang, Y. et al. La Modified Fe–Mn/TiO2 Catalysts to Improve SO2 Resistance for NH3-SCR at Low-Temperature. Catal Surv Asia 24, 291–299 (2020). https://doi.org/10.1007/s10563-020-09309-1

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