CAJ | 학술논문

在实验室规模的热态流化床试验台上，进行了含5%己二胺有机废液的焚烧实验研究.在700—900℃范围内，研究温度及空气过剩系数对NOx沿床高的变化规律，以及它们对NOx排放浓度的影响.实验结果表明，沿高度方向上NOx浓度逐渐降低，并且存在NO2浓度大于NO浓度这一有趣现象.在900℃下氧量增加有利于密相区NO、NO2浓度的降低，说明在有氧条件下NH2促进NOx的还原，在不同空气过剩系数下稀相区出口NOx几乎为零，表明900℃是己二胺有机废液焚烧的合适温度.
재실험실규모적열태류화상시험태상，진행료함5%기이알유궤폐액적분소실험연구.재700—900℃범위내，연구온도급공기과잉계수대NOx연상고적변화규률，이급타문대NOx배방농도적영향.실험결과표명，연고도방향상NOx농도축점강저，병차존재NO2농도대우NO농도저일유취현상.재900℃하양량증가유리우밀상구NO、NO2농도적강저，설명재유양조건하NH2촉진NOx적환원，재불동공기과잉계수하희상구출구NOx궤호위령，표명900℃시기이알유궤폐액분소적합괄온도.
Experiments were conducted to investigate NOx concentration profiles along bed height and the influences of temperature and excess air on NOx emission in the temperature range from 700℃ to 900℃, when waste water containing 5% hexamethylenediamine incinerated in a bench scale fluidized bed. The results indicate that NOx concentration profiles decrease progressively with bed height and the concentration of NO2 is larger than that of NO along bed height except in the freeboard at 900℃, where NO, NO2 concentrations are zero. Temperature and excess air play significant role on NOx emission. With increasing in temperature the NOx emission decreases very rapidly, and decreases to zero at 900℃. With increasing in excess air, NOx emission increases considerably at 700℃, but it is almost independent of excess air at 800℃, and at 900℃, NOx emission is almost zero indicating that NH2 from NH2(CH2)6NH2 has strong effect on de-NOx.