中文

Journal of Shanghai University（Natural Science Edition） ›› 2010, Vol. 16 ›› Issue (3): 297-301.

• Environmental and Chemical Engineering • Previous Articles     Next Articles

Effect of CeO2Doping on Dispersion of CuO/γ-Al2O3 Sorbent Catalyst and Its Characteristics in Flue Gas Desulfurization

LI Wei-qing,WANG Hui,LIU Guo-jie,ZHOU Li,SUN Jian   

  1. (Center for Green Chemical and Environmental Energy Research, Shanghai University, Shanghai 200444, China)
  • Online:2010-06-28 Published:2010-06-28

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Abstract:

CuO/γ-Al2O3 sorbent catalysts prepared by stepwise impregnation were studied using the X-ray diffraction (XRD), H2 temperatureprogrammed reduction (H2TPR) and thermogravimetric analysis (TGA) experiments. Results showed that the dispersion capacity of CuO loading on γ-Al2O3 was 0.042 g/100 m2. Two forms of CeO2 on γ-Al2O3 were observed: one consisted of highly dispersed entities (called 2D-Ce), and the other were relatively large three dimensional particles (3D-Ce). The controlled addition of CuO/γ-Al2O3 improved catalyst dispersion, substantially increased the absorption capacity and absorption rate and the cycling life of CuO/γ-Al2O3.

Key words:  CuO;CeO2;γ-Al2O3;flue gas desulfurization (FGD)