OXY-FUEL COMBUSTION EXPERIMENTS AT HIGH OXYGEN CONCENTRATIONS ON A 0.1 MWth CIRCULATING FLUIDIZED BED

摘要：

　　Oxy-fuel combustion experiments at high oxygen concentrations were successfully carried out at the IET/CAS using the 0.1 MWth oxy-fuel CFBC unit.The CFBC unit was built in 2010 and retrofitted to use recycled flue gas (RFG) in 2012, which was specially designed for combustion at high oxygen concentrations (up to 55%).The experimental results showed that CO2 concentrations in the flue gas reached a maximum of 84.1% during the combustion.The fuel N to NO conversion was 3.5% under the O2/RFG firing mode, which was much less than that observed under the O2/N2 firing mode (8.4%).The limestone utilization under O2/RFG firing mode was found to be much lower than that under O2/N2 firing mode.Sulfur capture efficiencies were 70.2% and 93.7% under O2/RFG and O2/N2 firing mode conditions, respectively, with a Ca/S molar ratio of 2.2.

关键词： Oxy-fuel combustion Circulating fluidized bed High oxygen concentration

作者: Wei Li Shiyuan Li Qiangqiang Ren Li Tan Haoyu Li Jingzhang Liu

作者单位: Institute of Engineering Thermophysics,Chinese Academy of Sciences,Beijing 100190,China;University o Institute of Engineering Thermophysics,Chinese Academy of Sciences,Beijing 100190,China

会议类型: 国际会议

会议名称: The 11th International Conference on Fluidized Bed Technology(CFB-11)(第十一届流化床技术国际会议)

会议地点: 北京

会议语种:英文

页码: 595-600

在线出版日期: 2014-05-14（万方平台首次上网日期，不代表论文的发表时间）