Research on the Anti-poisoning Properties of Zirconium Modified SCR Catalyst in Power Plants

摘要

The zirconium modified SCR catalysts were prepared by impregnation method, which exhibited high anti-poisoning properties. The optimal property was obtained by the zirconium modified SCR catalyst with Zr/V molar ratio of 1.0. The catalyst samples were characterized by the methods of BET, X-ray diffraction (XRD) and Fourier transform infrared spectra (FT-IR). It was shown that the Bronsted acid sites on the catalyst surface were enhanced obviously, which was the main reason for the high anti-poisoning property of the zirconium modified catalysts.