Simultaneous Removal of SO2, NO, and CO2 on Metal-Modified Coconut Shell Activated Carbon

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• 作者：Honghong Yi (1)
  Yanran Zuo (1)
  Haiyan Liu (1)
  Xiaolong Tang (1)
  Shunzheng Zhao (1)
  Zhixiang Wang (1)
  Fengyu Gao (1)
  Bowen Zhang (1)
  
  1. College of Civil and Environmental Engineering ; University of Science and Technology Beijing ; Beijing ; 100083 ; China
  
• 关键词：Activated carbon ; Adsorption ; SO2 ; NO ; CO2 ; Metal modified
• 刊名：Water, Air, and Soil Pollution
• 出版年：2014
• 出版时间：May 2014
• 年：2014
• 卷：225
• 期：5
• 全文大小：583 KB
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• 刊物类别：Earth and Environmental Science
• 刊物主题：Environment
  Environment
  Atmospheric Protection, Air Quality Control and Air Pollution
  Waste Water Technology, Water Pollution Control, Water Management and Aquatic Pollution
  Terrestrial Pollution
  Hydrogeology
  
• 出版者：Springer Netherlands
• ISSN：1573-2932

文摘

Simultaneous removal of SO2, NO, and CO2 from simulate flue gas was examined in this study. The sorbents were prepared by coconut shell activated carbon (SAC) and impregnated with metal nitrates (Cu, Ca, Mg, Zn). The adsorptive performance of sorbents was studied. The performances of these sorbents were not in agreement on adsorption of SO2, NO, and CO2. Cu-SAC seemed to be a promising sorbent through the calculation of adsorption capacity. Effect of different feed gases on adsorption activity of Cu-SAC was also studied. It indicates that CO2 impacts the adsorption of SO2 and NO but limited. O2 is the key to co-adsorption as its good oxidation capacity. The adsorbed SO2 and NO can interact with each other so as to form intermediate species under the influence of O2, which facilitates SO2 and NO oxidized to SO3 and NO2, respectively.