【摘要】 利用傅立叶变换红外光谱(FTIR)分析技术,对乌达矿区低温氧化和新鲜煤样进行了红外光谱测试,通过两类煤样的特征官能团吸光度的对比分析,揭示了煤在氧化前后特征官能团的变化规律:氧化后的煤样中脂肪族和芳烃CH减少,酸酐C=O从无到有,芳烃骨架C=C基本不变,进而研究了其对煤自燃倾向性的影响。结果表明脂肪族和羟基含量越高,煤自燃倾向性越大。更多还原

【Abstract】 The Fourier transform infrared spectrum apparatus was used to measure and analyze the infrared spectrogram of fresh and low-temperature oxidized coal from Wuda mining area.Through contrastive analysis of characteristic functional group absorbance,obtained the changes before and after coal oxidation,in the oxidized coal the aliphatics and aromatic hydrocarbon CH reduced,acid anhydride C=O appeared and aromatic framework C=C basically unchanged,then analyzed their influences on coal spontaneous combustion tendency.The result showed that,the higher content of aliphatics and hydroxyl,the bigger spontaneous combustion tendency of them.更多还原