中文摘要：

采用立式管式炉实验系统研究了三聚氰酸选择性非催化还原脱硝特性，探索了温度、O2浓度、停留时间、三聚氰酸与NO摩尔比、NO初始浓度等反应参数以及CO和H2O对三聚氰酸脱硝特性的影响。实验得出适宜的脱硝反应参数：反应温度约为950℃，温度窗口为876～1150℃，停留时间为1．1～1．2s，摩尔比为0．5，0，浓度为2％～3％。较高的NO初始浓度可以获得较高的脱硝效率。典型工况参数下，三聚氰酸在900℃时取得最大脱硝效率83．1％，大于900℃后，脱硝效率下降幅度较小，与氨气和尿素选择性非催化还原相比，具有更好的高温脱硝特性。CO和H2O的加入可以提高较低温度时的脱硝效率，拓宽温度窗口，使其向低温方向移动，较适宜的CO浓度约为200μL／L，H2O浓度约为5％。

英文摘要：

The performance of cyanuric acid based selective non-catalytic reduction （SNCR） was investigated in a drop robe furnace. The research covered the effects of operating parameters on NO reduction including temperature, residence time, molar ratio of cyanuric acid to initial NO, and the addition of CO and H2O. Results show that the optimum reaction temperature is about 950℃, the optimum temperature window is 876-1150 ℃, the optimum residence time is 1.1- 1.2 s, the optimum molar ratio is 0.5 and the optimum O2 concentration is 2%-3%. Higher initial NO concentration leads to higher efficiency. Under typical experimental conditions, the highest efficiency is 83.1% at 900 ℃. The efficiency decreases a little when the temperature increases above 900℃ which shows a better performance of NO reduction at higher temperatures compared to ammonia and urea based SNCR. The addition of CO and H2O can increase the efficiency at lower temperatures which are useful to widen the temperature window and shift the reaction temperature to lower points. The optimum concentrations of CO and H20 are 200μL/L and 5% respectively.