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Catalysts 2019, 9(3), 220; https://doi.org/10.3390/catal9030220

Applicability of V2O5-WO3/TiO2 Catalysts for the SCR Denitrification of Alumina Calcining Flue Gas

1,2,†
,
1,2,†
,
1
,
1,*
and
1,3,*
1
Beijing Engineering Research Center of Process Pollution Control, National Engineering Laboratory for Hydrometallurgical Cleaner Production Technology, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
2
School of Chemistry and Chemical Engineering, Guizhou University, Guiyang, Guizhou 550025, China
3
Center for Excellence in Regional Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen 361021, China
*
Authors to whom correspondence should be addressed.
Received: 1 February 2019 / Revised: 21 February 2019 / Accepted: 22 February 2019 / Published: 28 February 2019
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Abstract

V2O5-WO3/TiO2 catalysts with different V2O5 and WO3 loadings were prepared by the impregnation method. H2O and SO2 resistance of the catalysts under high H2O concentration (30 vol.%) was studied. Influence of various basic metal oxides, such as Al2O3, CaO, Na2O, and K2O on the catalytic performance was studied and compared. It is revealed that the inhibitory effect is in the sequence of K > Na > Ca > Al, which is consistent with their alkalinity. X-ray diffraction (XRD), N2 physisorption (BET), temperature-programmed desorption of NH3 (NH3-TPD), H2-temperature programmed reduction (H2-TPR), X-ray photoelectron spectroscopy (XPS) and diffuse reflectance infrared Fourier transform spectroscopy (DRIFTS) were carried out, and the results were well-correlated with the catalytic studies. View Full-Text
Keywords: selective catalytic reduction; V2O5-WO3/TiO2; H2O and SO2 resistance; basic metals selective catalytic reduction; V2O5-WO3/TiO2; H2O and SO2 resistance; basic metals
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Ning, R.; Chen, L.; Li, E.; Liu, X.; Zhu, T. Applicability of V2O5-WO3/TiO2 Catalysts for the SCR Denitrification of Alumina Calcining Flue Gas. Catalysts 2019, 9, 220.

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