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Selective Catalytic Reduction of NOx with CH4 over the In/Sulfated TiO2 Catalyst

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Abstract

Tungstated TiO2 (WTi), tungstated Fe2O3 (WFe), tungstated SnO2 (WSn), sulfated TiO2 (STi), sulfated Fe2O3 (SFe), and sulfated SnO2 (SSn) are used as the support for the In and Pd catalysts for the SCR of NO with methane. It was found that the In/STi catalyst with a 2% indium loading showed the highest NOx conversion (39% at 450 °C and 12,000 h−1) among all of the catalysts studied. The acid strength of the STi support was very important for the formation of the InO+ site, which was thought to be the active site for NO reduction. The activity of the In/STi catalyst can be improved by increasing the surface area of the STi support. The most attractive feature of the In/STi catalyst is its high resistance for SO2.

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Acknowledgments

The work was financially supported by National Natural Science Fund of China (Grant NO. 20677034 and 20437010), and the National High-Tech Research and Development (863) Program of China (Grant No. 2006AA060301).

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Authors and Affiliations

  1. Institute of Nuclear and New Energy Technology, Tsinghua University, Beijing, 102201, China

    Dong Yang, Mingfen Wen & Chongli Song

  2. Department of Environmental Science and Engineering, Tsinghua University, Beijing, 100084, China

    Dong Yang & Junhua Li

Authors
  1. Dong Yang
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  2. Junhua Li
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  3. Mingfen Wen
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  4. Chongli Song
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Corresponding author

Correspondence to Dong Yang.

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Yang, D., Li, J., Wen, M. et al. Selective Catalytic Reduction of NOx with CH4 over the In/Sulfated TiO2 Catalyst. Catal Lett 122, 138–143 (2008). https://doi.org/10.1007/s10562-007-9360-x

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  • DOI: https://doi.org/10.1007/s10562-007-9360-x

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