【摘要】 氮氧化物排放问题近年来在环境保护领域引起了广泛关注。首先在管式炉实验台上，研究了乙醇（C₂H₆OH）和苯酚（C₆H₅OH）对SNCR脱硝效率影响。得出650～800℃低温区间内，乙醇与苯酚对SNCR脱硝效率的促进效果较佳。在6 kW（th） CFB燃煤试验装置系统，进一步研究实际燃煤烟气中，二者对SNCR影响。结果表明，在反应温度低于700℃时，乙醇与苯酚均可改善脱硝效率，在700～750℃温度区间，宜采用乙醇作添加剂，控制β（C₂H₅OH/NH₃）为0.8左右。高于750℃,SNCR脱硝效率已高于50%，不宜添加此两种添加剂。更多还原

【Abstract】 In recent years, the problem of nitrogen oxide emissions has attracted wide attention in the field of environmental protection. Firstly, the effect of ethanol（C₂H₆OH） and phenol（C₆H₅OH）on the denitration efficiency of SNCR was studied in a tube furnace. It was concluded that ethanol and phenol had a better effect on the denitration efficiency of SNCR from 650℃ to 800℃. In the 6 kW（th） CFB coal burning test system, the effects of the two on SNCR in actual coal burning flue gas were further studied. The result indicated that both ethanol and phenol could improve the denitration efficiency when the reaction temperature was lower than 700℃. From 700 to 750℃, it was advisable to use ethanol as additive and control β（C₂H₅OH/NH₃） to about 0.8. Higher than 750℃, SNCR denitration efficiency was higher than 50%, it was not appropriate to add these two additives.更多还原