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Article Navigation >  Green Energy&Environment  > 2019  >  4(3): 311-321
Junqi Tian, Ke Zhang, Wei Wang, Fu Wang, Jianming Dan, Shengchao Yang, Jinli Zhang, Bin Dai, Feng Yu. Enhanced selective catalytic reduction of NO with NH3 via porous micro-spherical aggregates of Mn–Ce–Fe–Ti mixed oxide nanoparticles. Green Energy&Environment, 2019, 4(3): 311-321. doi: 10.1016/j.gee.2019.05.001
Citation: Junqi Tian, Ke Zhang, Wei Wang, Fu Wang, Jianming Dan, Shengchao Yang, Jinli Zhang, Bin Dai, Feng Yu. Enhanced selective catalytic reduction of NO with NH3 via porous micro-spherical aggregates of Mn–Ce–Fe–Ti mixed oxide nanoparticles. Green Energy&Environment, 2019, 4(3): 311-321. doi: 10.1016/j.gee.2019.05.001
shu

Enhanced selective catalytic reduction of NO with NH3 via porous micro-spherical aggregates of Mn–Ce–Fe–Ti mixed oxide nanoparticles

doi: 10.1016/j.gee.2019.05.001
  • a.

    Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University, Shihezi 832003, China

  • b.

    School of Environmental Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China

More Information
  • Corresponding author: E-mail address: yufeng05@mail.ipc.ac.cn (Feng Yu)
  • Received date 19 January 2019, Accepted date 05 May 2019, RevRecd date 29 April 2019, Available online 10 May 2019, Publish date 31 July 2019,
    Abstract
  • We rationally designed a high performance denitration (De-NOx) catalyst based on a micrometer-sized spherical Mn–Ce–Fe–Ti (CP-SD) catalyst for selective catalytic reduction (SCR). This was prepared by a co-precipitation and spray drying (CP-SD) method. The catalyst was systematically characterized, and its morphological structure and surface properties were identified. Compare with conventional Mn–Ce–Fe–Ti (CP) catalysts, the Mn–Ce–Fe–Ti (CP-SD) catalyst had superior surface-adsorbed oxygen leading to enhanced “fast NH3-SCR” reaction. The as-obtained Mn–Ce–Fe–Ti (CP-SD) catalyst offered excellent NO conversion and N2 selectivity of 100.0% and 84.8% at 250 °C, respectively, with a gas hourly space velocity (GHSV) of 40,000 h−1. The porous micro-spherical structure provides a larger surface area and more active sites to adsorb and activate the reaction gases. In addition, the uniform distribution and strong interaction of manganese, iron, cerium, and titanium oxide species improved H2O and SO2 resistance. The results showed that the Mn–Ce–Fe–Ti (CP-SD) catalyst could be used prospectively as a denitration (De-NOx) catalyst.

     

    • • Three-dimensional porous micro-spherical aggregates of Mn-Ce-Fe-Ti mixed metal oxides were synthesized in large quantities via spray drying method and used as low-temperature denitration catalyst for selective catalytic reduction of NO with NH3.
    The authors contributed equally to this work.
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