• 关键词：流化床  己二胺  有机废液焚烧  NO_x

• 基金项目：

• 别如山
• 哈尔滨工业大学环境科学与工程系,哈尔滨 150001

• 李炳熙
• 哈尔滨工业大学环境科学与工程系,哈尔滨 150001

• 陆慧林
• 哈尔滨工业大学环境科学与工程系,哈尔滨 150001

• 杨励丹
• 哈尔滨工业大学环境科学与工程系,哈尔滨 150001

• 周定
• 哈尔滨工业大学环境科学与工程系,哈尔滨 150001

• 摘要：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NO_x沿床高的变化规律,以及它们对NO_x排放浓度的影响.实验结果表明,沿高度方向上NO_x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NO_x的还原,在不同空气

• Abstract：Experiments were conducted to investigate NO_x concentration profiles along bed height and the influences of temperature and excess air on NO_x 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 NO_x 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 NO_x emission. With increasing in temperature the NO_x emission decreases very rapidly, and decreases to zero at 900℃. With increasing in excess air, NO_x emission increases considerably at 700℃, but it is almost independent of excess air at 800℃, and at 900℃, NO_x emission is almost zero indicating that NH₂ from NH₂(CH₂)₆NH₂ has strong effect on de NO_x .

• Key words：fluidized bed  hexamethylenediamine  incineration of organic liquid waste  NO_x

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