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在鼓泡反应器中考察了[Co(en)3]2+同时吸收去除SO2和NO的影响因素,实验结果表明,pH值和脱硫剂种类是影响乙二胺合钴同时脱除NO和SO2的最重要影响因素,烟气中的氧促进乙二胺合钴吸收NO和SO2,烟气中的SO2,CO2和NO2对乙二胺合钴吸收NO具有抑制作用。在实验条件温度为20℃,pH为13.0,[Co(en)3]2+浓度为0.025 mol/L,加入1 g NH3.H2O的脱硝率更好,连续吸收60 min,脱硝率均保持在93.5%,加入NaOH和NH3.H2O的脱硫效果最好。乙二胺合钴络合同时脱除NO和SO2完全可以在一个装置中完成。
The effects of [Co (en) 3] 2+ simultaneous absorption and removal of SO2 and NO were investigated in a bubbling reactor. The experimental results show that the pH value and the type of desulfurizer affect the simultaneous removal of NO and SO2 The most important factor is that the oxygen in the flue gas promotes the absorption of NO and SO2 by ethylenediamine cobalt and the inhibition of NO absorption by ethylenediamine cobalt by SO2, CO2 and NO2 in flue gas. Under the experimental conditions of 20 ℃, pH of 13.0, [Co (en) 3] 2+ concentration of 0.025 mol / L, 1 g of NH3.H2O was added, the denitrification rate was better, 93.5%, adding NaOH and NH3.H2O desulfurization best. Ethylenediamine cobalt complex at the same time the removal of NO and SO2 can be done in one device.