Development of Red Mud Coated Catalytic Filter for NOx Removal in the High Temperature Range of 300–450 °C

  • Lin Huangfu
  • Abdullahi Abubakar
  • Changming LiEmail author
  • Yunjia Li
  • Chao Wang
  • Shiqiu Gao
  • Zhouen Liu
  • Jian YuEmail author


The red mud (RM) coated catalytic filter was developed as efficient multifunctional material to simultaneously remove NOx and dust in the high temperature range of 300–450 °C, which exhibits excellent deNOx activity/durability as well as low pressure drop with more than 80% NO conversion in the presence of H2O/SO2. The performance of the RM coated catalytic filter is obviously superior to that of the reference samples of V–W–Ti and Fe–Ti based filter. The multiple characterization data (including XRD, XRF, BET, SEM, TPX and LPSA) reveals the amorphous state of the RM catalyst with high dispersity of Fe active sites accounts for the high adsorption capacity of NH3 and thus excellent deNOx performance. Moreover, the prepared colloidal RM slurry is very uniform and stable with the smallest average particle size, which reduces the blocking up of the channel of filter and facilitates the decrease of pressure drop as well as the improvement of deNOx activity. The excellent deNOx performance, low pressure drop together with the low cost make the RM coated catalytic filter to be promising application prospect for purification of the high-temperature flue gas with high content of dust such as in cement and glass furnaces.

Graphic Abstract

The preparation of RM catalytic filter and the comparison of SCR performance between three kinds of catalytic filters.


Red mud Catalytic filter Selective catalytic reduction Pressure drop 



The authors are grateful for the financial support of International Science and Technology Cooperation Program of China (2016YFE0128300), Natural Science Foundation of China (Grant 21601192 and 21878310) and the independent subject from State Key Laboratory of Multi-phase Complex Systems (Grant MPCS-2019-0-03).

Compliance with Ethical Standards

Conflict of interest

The authors declare that they have no competing interest.


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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  • Lin Huangfu
    • 1
    • 2
  • Abdullahi Abubakar
    • 1
    • 2
  • Changming Li
    • 1
    Email author
  • Yunjia Li
    • 1
    • 2
  • Chao Wang
    • 3
  • Shiqiu Gao
    • 1
  • Zhouen Liu
    • 1
  • Jian Yu
    • 1
    Email author
  1. 1.State Key Laboratory of Multi-phase Complex Systems, Institute of Process EngineeringChinese Academy of SciencesBeijingChina
  2. 2.School of Chemistry and Chemical EngineeringUniversity of Chinese Academy of SciencesBeijingChina
  3. 3.School of Chemical EngineeringXiangtan UniversityXiangtanChina

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