Inorganic Chemicals Industry >

2021 , Vol. 53 >Issue 8: 112 - 116

DOI: https://doi.org/10.19964/j.issn.1006-4990.2020-0543

Catalytic Materials

Study on deactivation effect of chromium on industrial V-Mo/Ti De-NOx catalyst

  • Li Huang ,
  • Hu Wang ,
  • Yuhao Zong ,
  • Zhengfeng Chang ,
  • Yang Liu ,
  • Jinke Li ,
  • Pei Han
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  • 1. Datang Nanjing Environmental Protection Technology Co.,Ltd,Nanjing 211111,China
    2. Instrumental Analysis Center,Inner Mongolia University of Science & Technology

Received date: 2020-10-11

  Online published: 2021-08-11

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Abstract

Industrial V-Mo-Cr/Ti catalysts loaded with different amounts of Cr2O3 were prepared by impregnation method.XRD,N2-adsorption,NH3-TPD,Raman,H2-TPR and XPS were used to characterize the catalysts.Afterwards,the denitri-fication performance of the different catalysts was tested through a fixed-bed microreactor.It was found that Cr2O3 loaded on industrial V-Mo/Ti denitration catalysts had little impact on the pore properties of catalyst.By comparison with V-Mo/Ti cat-alyst,V-Mo-Cr/Ti catalyst presented more amount of acid sites.However,due to the influence of Cr2O3,the reduction perfor-mance of the catalyst was lower and the content of chemical adsorbed oxygen was less.V-Mo-Cr/Ti catalysts exhibited relative lower NOx conversion and higher N2O generation in the temperature range of 250 ℃ to 430 ℃ than that of the V-Mo/Ti cata-lyst.

Key words： selective catalytic reduction; V-Mo/Ti; chromium oxide; denitration catalyst

Cite this article

Li Huang , Hu Wang , Yuhao Zong , Zhengfeng Chang , Yang Liu , Jinke Li , Pei Han . Study on deactivation effect of chromium on industrial V-Mo/Ti De-NOx catalyst[J]. Inorganic Chemicals Industry, 2021 , 53(8) : 112 -116 . DOI: 10.19964/j.issn.1006-4990.2020-0543

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