【摘要】 目的　研究煤中氮的有机形态及煤转化利用过程中含氮污染物排放规律。方法　利用红外光谱法对铜川原煤及其干燥后的煤样进行了分析。结果　得到不同工况下煤样的FTIR谱图。3040cm-1附近的吸收峰是煤中羟基与吡啶环上N原子形成的氢键振动,对比干燥前后煤样的红外谱图,发现吡咯环上N与H形成的氢键在3400cm-1附近引起中强峰;同时,芳族伯胺基团、腈类物质中C≡N键也可以利用红外谱图检测到。结论　铜川贫煤中氮元素主要以吡啶、吡咯及氨基的形式存在,并存在腈类C≡N键的结构形式。更多还原

【Abstract】 Aim Different functional forms of nitrogen in coal will bring on incoordinate NO_x emission. Methods The functional forms of the nitrogen in Tongchuan lean coal have been qualitatively analyzed by Fourier Transform Infrared Radiation （FTIR） analyzer.Results Pyridinic-nitrogen was identified in Tongchuan lean coal via the stretch of hydrogen bounds at 3 040 cm^-1 that formed between hydroxyls and nitrogen atom in pyridinic rings.Pyrrolic-nitrogen was identified via the mid-intensity absorption peak of N-H in pyrrolic ring at 3 400 cm^-1. Conclusion It is concluded that nitrogen in Tongchuan coal exists in pyridinic-or pyrrolic-type,the same time the functionalities include amido and aliphatic nitrile（C≡N）.更多还原