离子色谱法测定煤热解过程中HCN和NH_3的释放量

Measurement of HCN and NH_3 Release by Ion Chromatography during Coal Pyrolysis

采用离子色谱法测定了不同煤阶的 3种煤样在同一实验条件下热解时气相产物中氮化物 ( NH3和 HCN)的生成量 ,确定了最佳测试方案 ,并研究了煤种对产物 NH3和 HCN转化率的影响。实验结果表明 ,在选定的实验条件下离子色谱测定 NH3和 HCN生成量的方法可行 ,得出了产物 NH3,HCN释放量和 m( NH3) /m( HCN)比值随煤阶 (含 C量 )

The ion chromatography is employed to measure the contents of N compounds in gas phase products in pyrolysis of 3 coal samples in the same condition.It is viable that absorption sample of NH 3 and HCN is measured by the ion chromatography. And the release of NH 3, HCN and the ratio of HCN and NH 3 is affected by coal rank and volatile content.