| O2/CO2气氛下循环流化床煤燃烧SO2排放 |
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| 引用本文： | 段伦博,周骛,屈成锐,陈晓平,赵长遂. O2/CO2气氛下循环流化床煤燃烧SO2排放[J]. 工程热物理学报, 2012, 0(1): 151-154 |
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| 作者姓名： | 段伦博 周骛 屈成锐 陈晓平 赵长遂 |
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| 作者单位： | 东南大学能源与环境学院 |
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| 基金项目： | 国家重点基础研究发展计划项目(No.2011CB707301) |
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| 摘 要： | 在热输入功率50 kW的循环流化床O2/CO2燃烧试验装置上研究燃煤SO2排放特性及石灰石脱硫机理。结果发现,未添加石灰石时,O2/CO2气氛下SO2排放量比相同O2浓度的空气气氛下低;随着O2浓度的升高,排放量升高。相同钙硫摩尔比下,O2/CO2气氛下石灰石的脱硫机理以直接脱硫为主,脱硫效率比空气气氛下高;随着O2浓度的增加,石灰石脱硫效率提高。
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| 关 键 词： | 循环流化床 O2/CO2燃烧 SO2排放 脱硫效率 |
SO2 Emission From a Coal-Fired Circulating Fluidized Bed Combustor Under O2/CO2 Atmosphere |
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| N Lun-Bo,U Wu,U Cheng-Rui,N Xiao-Ping,HAO Chang-Sui. SO2 Emission From a Coal-Fired Circulating Fluidized Bed Combustor Under O2/CO2 Atmosphere[J]. Journal of Engineering Thermophysics, 2012, 0(1): 151-154 |
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| Authors: | N Lun-Bo U Wu U Cheng-Rui N Xiao-Ping HAO Chang-Sui |
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| Affiliation: | (School of Energy and Environment,Southeast University,Nanjing 210096,China) |
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| Abstract: | The SO2 emission and limestone desulfurization characteristics were studied in a 50 kW circulating fluidized bed combustor under O2/CO2 atmosphere.Results show that without limestone addition,SO2 emission in 21%O2/79%CO2 atmosphere is lower than that in air atmosphere.As O2 concentration increases in O2/CO2 atmosphere,SO2 emission increases.With the same Ca/S molar ratio,direct sulfation is the dominant desulfurization mechanism in O2/CO2 atmosphere and the desulfurization efficiency is higher than that in air atmosphere.As O2 concentration increases,the desulfurization efficiency increases in O2/CO2 atmosphere. |
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| Keywords: | circulating fluidized bed O2/CO2 combustion SO2 emission desulfurization efficiency |
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