铝基氧化铜干法烟气脱硫及再生研究

采用浸渍法制备了XP型和DS型两种铝基氧化铜脱硫剂，并利用制得的脱硫剂进行了烟气循环脱硫-再生实验，同时利用BET、XRD和EPMA等方法研究了载体性质对脱硫剂性能的影响以及脱硫剂的表面微观结构在脱硫和再生过程的变化。实验和分析表明，用于制备脱硫剂的载体应同时具备较大的比表面积和合适的孔结构，实验条件下制得的铝基氧化铜脱硫剂的脱硫效率可达90％，该脱硫剂在多次循环脱硫-再生过程中性能保持稳定。

Flue gas desulfurization by alumina supported copper oxide and regeneration of the sorbents

The alumina supported copper oxide sorbents named XP and DS were prepared by impregnation method, and cycles of sulfation-regeneration reactions were carried out in a quartz tube reactor. The effects of the physical properties of the supporter on SO2 sorption capacity of the sorbents, as well as the changes of the surface microstructure of the sorbents during sulfation regeneration reactions were determined by BET, XRD and EP (Electron Probe). The results show that the γ-alumina used for sorbents should have both the large surface area and the ideal pore size. Above 90% desulfurization efficiency has been obtained by the prepared sorbents under the experimental conditions. These sorbents exhibit a good stability in the cycles of sulfation-regeneration reactions.