Acta Chimica Sinica ›› 2011, Vol. 69 ›› Issue (18): 2179-2184. Previous Articles     Next Articles

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微波辐照活性炭床烟气脱硝实验研究

马双忱*,金鑫,姚娟娟,靳义净,张博,董松,石荣雪   

  1. (华北电力大学环境科学与工程学院 保定 071003)
  • 投稿日期:2010-12-15 修回日期:2011-03-30 发布日期:2011-05-30
  • 通讯作者: 马双忱 E-mail:msc1225@163.com
  • 基金资助:

    微波辐照活性炭协同脱除烟气中SO2和NOX的应用基础研究

Experimental Studies of Flue Gas Denitrification Using Microwave Irradiation over Activated Carbon

MA Shuang-Chen, JIN Xin, YAO Juan-Juan, JIN Yi-Jing, ZHANG Bo, DONG Song, SHI Rong-Xue   

  1. (School of Environmental Science and Engineering, North China Electric Power University, Baoding 071003)
  • Received:2010-12-15 Revised:2011-03-30 Published:2011-05-30

Nitrogen oxides can be removed through microwave induced catalysis combined with the adsorption and reduction of activated carbon. Flue gas denitrification using microwave reactor was carried out, the effects of microwave irradiation power (reaction temperature), flow rate of flue gas, concentrations of objective pollutants and flue gas coexistence compositions on the removal performance of nitrogen oxides were studied. The results show that, the higher microwave power, the higher denitrification efficiency, up to 80% of the denitrification efficiency under the power of 560 W is achieved|higher amount of activated carbon, more complete denitrification reaction, 83% of the NOx can be removed under the amount of 50 g activated carbon|NOx removal efficiency decreases with increasing flow rate of flue gas|presence of oxygen in flue gas enhances the removal of NO, and too high moisture content is harmful to the denitrification efficiency. Kinetic study shows that the order of NO reaction approximates to 1.0, and rate constant is 1.33 min-1. It is seen that the surface area could decrease as microwave irradiation from the results of BET measurement.

Key words: microwave, activated carbon, flue gas denitrification, experimental study