【摘要】 在循环流化床烟气脱硫试验台上进行了多层喷水脱硫的试验研究 ,分析了反应发生的原理 ,对脱硫产物进行了电镜分析 ,揭示了含湿钙基脱硫剂的脱硫机理。试验表明 :多层喷水与传统的单层喷水相比 ,流化床内温度分布更加均匀 ,趋近饱和温度ΔT值有较大降低 ,脱硫效率明显提高 ,系统运行更加稳定可靠。质谱分析和电镜分析表明 :SO2 与Ca(OH) 2 反应后 ,在脱硫剂的表面形成产物层 ,减缓了SO2 与脱硫剂的进一步反应更多还原

【Abstract】 An experimental study was conducted of flue gas desulfurization by the use of multi-level water spray on a pilot test stand for flue gas desulfurization in a circulating fluidized bed with an analysis of the reaction generation mechanism. Desulfurization products were analyzed with the help of an electronic microscope along with a clarification of the desulfurization reaction mechanism of wet calcium base sorbent. The test results indicate that as compared with traditional single-level water spray the multi-level water spray can result in a more uniform temperature distribution in the fluidized bed, a relatively large reduction of the approach saturation temperatureΔT, a marked increase in desulfurization efficiency and a more stable and reliable operation of the system. A mass spectrographic analysis and an electronic microscope analysis have shown that after the reaction of SO 2 with Ca(OH) 2 a reaction product layer was formed on the surface of the desulfurizing agent, which alleviates the further reaction between SO 2 and the desulfurizing agent.更多还原