CuO/γ-Al2O3脱除烟气中SO2的研究

CuO/γ-Al2O3 was used to remove SO2 from flue gas. The effects of catalyst preparation parameters and reaction conditions on sulfur removal activity were investigated. The characterization of the CuO/γ-Al2O3 desulphurizer with different Cu loading has been carried out by XRD. The CuO/γ-Al2O3 desulphurizer with 8%～10% Cu loading shows the highest activity for SO2 removal. The decrease of sulfur removal activity of CuO/γ-Al2O3 with Cu loading higher than 10% may be due to segregation of CuO on the surface of Al2O3. At temperatures of 350℃～500℃ and GHSV of 3 000 L/kg·h～56 000 L/kg·h, the CuO/γ-Al2O3 desulphurizer shows high sulfur removal activity which is greatly promoted by presence of oxygen in the simulated flue gas.