新鲜煤和氧化煤自燃倾向性的FTIR对比分析  

Contrastive Analysis of Spontaneous Combustion Tendency between Fresh Coal and Oxidized Coal by the FTIR

作　　者：胥哲[1] 曹代勇[1] 

机构地区：[1]中国矿业大学煤炭资源与安全开采国家重点实验室,北京100083

出　　处：《中国煤炭地质》2008年第5期4-6,23,共4页Coal Geology of China

基　　金：国家自然科学基金项目(40572092)

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。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.

关 键 词：自燃倾向性 傅立叶变换红外光谱 官能团 

分 类 号：TQ530[化学工程—煤化学工程]