發(fā)布時(shí)間：2019-05-23 19:23

【摘要】：為提高燃煤煙氣同時(shí)脫硫脫硝工藝中的脫硝效率,將等離子體氧化技術(shù)應(yīng)用到濕式氨法脫硫工藝中,建立了等離子體氧化NO耦合濕式氨法的脫硫脫硝試驗(yàn)裝置.考察了液氣比、氨水濃度、煙氣流量、煙氣溫度、NO初始濃度、SO2初始濃度等工藝參數(shù)對(duì)同時(shí)脫硫脫硝性能的影響.試驗(yàn)結(jié)果表明:提高液氣比、增加氨水濃度、減少煙氣流量、降低煙氣溫度、減小NO和SO2初始濃度都可以提高脫硝效率,而試驗(yàn)范圍內(nèi)工藝參數(shù)對(duì)脫硫效率的影響幾乎可以忽略;當(dāng)液氣比為10 L/m3、氨水濃度為4 mol/L、煙氣流量為10 m3/h、煙氣溫度為85℃、NO初始濃度為3.5×10-4、SO2初始濃度為1.0×10-3時(shí),該試驗(yàn)裝置的脫硫效率和脫硝效率分別為99.6%和69.4%.
[Abstract]:In order to improve the denitrification efficiency of simultaneous desulfurization and denitrification process of coal-fired flue gas, plasma oxidation technology was applied to wet ammonia desulfurization process, and a desulphurization and denitrification test device of plasma oxidation NO coupled wet ammonia method was established. The effects of liquid-gas ratio, ammonia concentration, flue gas flow rate, flue gas temperature, NO initial concentration and SO2 initial concentration on simultaneous desulfurization and denitrification performance were investigated. The experimental results show that the denitrification efficiency can be improved by increasing the ratio of liquid to gas, increasing the concentration of ammonia, reducing the flow rate of flue gas, reducing the temperature of flue gas and reducing the initial concentration of NO and SO2. However, the influence of process parameters on desulphurization efficiency in the experimental range can almost be ignored. When the ratio of liquid to gas is 10 L 路m ~ 3, the concentration of ammonia is 4 mol/L, the flue gas flow rate is 10 m ~ 3 路h, the flue gas temperature is 85 鈩，

本文編號(hào)：2484159