In order to discuss the vitrain and fusain hydrogen liquefaction difference and cause, rich vitrain and rich fusain samples were picked by hands from the collected coal samples. The hydrogen liquefaction experiments and the infrared spectrum analysis were conducted with the rich vitrain and rich fusain samples. The liquefaction experiment results showed that the oil production rate and conversion rate of the vitrain would be higher than the fusain. The spectnun graphical pile subprogram of the WIN-IR software was applied to the infrared spectrum individual peak simulation of the vitrain and fusain. The analysis showed that in comparison with the fusain, the aromatic hydrogen content of the vitrain would be lower and the aliphatic hydrogen content of the vitrain would be higher. Therefore this is the important cause that the liquefaction conversion rate and oil production rate of the vitrain would higher than the fusain. The content of the fusain oxygen-containing function groups would be higher than the vitrain and would be main influence factors that the CO2 and CO in the fusain liquefied gas products could be higher than the vitrain. The liquefied water production rate of the vitrain and fusain would be approximately equal and due to the partial reason, the hydroxyl strength of the vitrain and fusain would be approximately same.%为探讨镜煤与丝炭的加氢液化差异及其原因,对采集的煤样手工剥离出富镜煤和富丝炭,并对其进行了加氢液化试验和红外光谱分析.液化试验结果表明,镜煤的油收率和转化率都要高于丝炭.采用WIN-IR软件中的谱图解叠子程序对镜煤和丝炭进行了红外光谱分峰模拟,分析表明,与丝炭相比,镜煤的芳香氢含量低,脂肪氢含量高,这是导致镜煤液化转化率、油收率高于丝炭的重要原因;丝炭的含氧官能团含量高于镜煤,是丝炭液化气体产物中CO2和CO高于镜煤的主要影响因素;镜煤和丝炭的液化水产率非常接近,其部分原因归因于二者所含的羟基强度近似相等.
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