【摘要】 为研究Fe^ⅡEDTA（/NH₄）₂SO₃溶液吸收脱除NO的效果,考察了吸收脱除过程中（NH₄）₂SO₃浓度、FeⅡEDTA初始浓度、烟气流量、p H、温度、入口NO浓度、φ（O2）等因素的影响。通过设计正交试验,确定主次因素关系和最佳工艺条件。结果表明:各因素对NO吸收脱除效果的影响由大到小的顺序为FeⅡEDTA初始浓度>入口NO浓度>温度>φ（O2）>烟气流量>p H>（NH₄）₂SO₃浓度;Fe^ⅡEDTA（/NH₄）₂SO₃溶液吸收脱除NO的最佳工艺条件为FeIIEDTA初始浓度0.005 mol/L、入口NO浓度1 072 mg/m3、温度30℃、φ（O2）4%、烟气流量800 m L/min、p H=7、（NH₄）₂SO₃浓度0.2 mol/L,此时NO最大脱除率达到92.5%,NO吸收量为3.28 mol/mol。更多还原

【Abstract】 The effects of（NH₄）₂SO₃concentration,initial Fe^ⅡEDTA concentration,gas flow rate,p H,temperature,NO concentration,and oxygen concentration in feed gas on NO removal by FeⅡEDTA /（NH₄）₂SO₃solution were investigated. The primary and secondary influence factors and the best process conditions were determined by orthogonal test. The results show that the influence order of different parameters on NO absorption is:the initial FeⅡEDTA concentration > NO concentration in feed > temperature > oxygen concentration > feed gas flow rate > p H value >（ NH₄）₂SO₃concentration. The optimum conditions for NO removal by FeⅡEDTA /（ NH₄）₂SO₃solution is: the initial Fe^ⅡEDTA concentration of 0. 005 mol / L,NO concentration of 1 072 mg / m³,30 °C,oxygen concentration of 4%,the gas flow rate of 800 m L / min,p H of 7,（ NH₄）₂SO₃concentration of0. 2 mol / L. The NO removal rate reaches 92. 5% and the absorption amount of NO is 3. 28 mol / mol under the optimum conditions.更多还原