己二胺有机废液在流化床中焚烧的实验研究

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 过剩系数下和然相区出口NOx几乎为零 ，表明900℃是己二胺有机废液焚烧 的合适温度。

Experimental study on incineration of organic hazardous liquid waste containing hexamethylendiamine in fluidized bed

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.