CAJ | 학술논문

为提高燃煤烟气同时脱硫脱硝工艺中的脱硝效率，将等离子体氧化技术应用到湿式氨法脱硫工艺中，建立了等离子体氧化NO耦合湿式氨法的脱硫脱硝试验装置．考察了液气比、氨水浓度、烟气流量、烟气温度、NO初始浓度、SO2初始浓度等工艺参数对同时脱硫脱硝性能的影响．试验结果表明：提高液气比、增加氨水浓度、减少烟气流量、降低烟气温度、减小NO和SO2初始浓度都可以提高脱硝效率，而试验范围内工艺参数对脱硫效率的影响几乎可以忽略；当液气比为10 L／m3、氨水浓度为4 mol／L、烟气流量为10 m3／h、烟气温度为85℃、NO初始浓度为3．5×10－4、SO2初始浓度为1．0×10－3时，该试验装置的脱硫效率和脱硝效率分别为99．6％和69．4％．
위제고연매연기동시탈류탈초공예중적탈초효솔，장등리자체양화기술응용도습식안법탈류공예중，건립료등리자체양화NO우합습식안법적탈류탈초시험장치．고찰료액기비、안수농도、연기류량、연기온도、NO초시농도、SO2초시농도등공예삼수대동시탈류탈초성능적영향．시험결과표명：제고액기비、증가안수농도、감소연기류량、강저연기온도、감소NO화SO2초시농도도가이제고탈초효솔，이시험범위내공예삼수대탈류효솔적영향궤호가이홀략；당액기비위10 L／m3、안수농도위4 mol／L、연기류량위10 m3／h、연기온도위85℃、NO초시농도위3．5×10－4、SO2초시농도위1．0×10－3시，해시험장치적탈류효솔화탈초효솔분별위99．6％화69．4％．
To increase the NO x removal efficiency in simultaneous desulfurization and denitrification of flue gas,the plasma oxidation technology was applied to the wet flue gas desulfurization (WF-GD)process.The testing apparatus for simultaneous desulfurization and denitrification with ammo-nia in WFGD system combined with plasma oxidation of NO 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 the removal efficiency of SO2 and NOx were investigated.The re-sults show that higher liquid-gas ratio,higher ammonia concentration,lower gas flow rate,lower flue gas temperature,lower NO initial concentration and lower SO2 initial concentration contribute to higher NOx removal efficiency,while the SO2 removal efficiency remains almost the same under cor-responding experimental parameters.The removal efficiency of SO2 and NOx reach 99.6% and 69.4%,respectively,under the following conditions:liquid-gas ratio of 10 L/m3;ammonia con-centration of 4 mol/L;flue gas flow rate of 10 m3/h;flue gas temperature of 85 ℃;NO initial con-centration of 3.5 ×10 -4;SO2 initial concentration of 1.0 ×10 -3.