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中文摘要：
通过水平管式炉中对贵州六枝煤的实验，研究了在不同热解气氛下FeCl，的添加对煤粉热解过程中氮分布规律的影响。FeCl3添加方式包含两种，一种是物理混合，另一种是煤样与FeCl3的水溶液混合。热解气氛有N2，CO2和Ar。用CO2作为热解气体是为了研究在富氧条件下高浓度CO2对热解过程中氮分布的影响。实验结果发现，在1273K温度下，Ar为热解气氛下，酸洗煤添加FeCl，会抑制HCN的生成。但是在N2气氛下，HCN生成量却增加，这是由于高浓度的N2抑制了FeCl3的催化作用。在CO2气氛下，HCN的量明显降低，这是由于在CO2气氛下FeCl3不仅促进挥发分的二次分解，还促进了焦氮的转化。在Ar和N2气氛下热解时，两种FeCl3的添加方式均能大幅度地降低NH]的生成，在CO2气氛下没有测到NH3的量。
英文摘要：
The experiments were carried out in horizontal tube furnace with Guizhou Liuzhi coal to understand the effects of FeCl3 addition on nitrogen distribution under different pyrolysis atmospheres. Two mixing ways, namely, physically mixing and mixing with a saturated aqueous solution of FeCl3, were introduced. Three pyrolysis atmospheres, N2, CO2 and At, were investigated. CO2 was used to understand the effect of highconcentration of CO2 on nitrogen distribution in oxy-fuel environment in coal pyrolysis. The results show that at the temperature of 1 273 K, FeCl3 addition with DEM decreases HCN under At. Under N2, FeCl3 increases the release of HCN due to high concentration of N2. Under CO2, HCN is much smaller than that under other atmospheres, because of the effect of FeCl3 on devolatilization and char conversion. Under Ar or N2 atmospheres, NH3 decreases sharply with FeCl3 addition. NH3 is not detected under CO2.
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