红外光谱定量分析煤中脂肪碳和芳香碳

QUANTITATIVE DETERMINATION OF AROMATIC-CH AND ALIPHATIC-CH BY IR SPECTROSCOPY

利用FT -IR光谱分析和合适的光谱分峰程序 ,把煤的红外吸收光谱分解为 38个Gaussian分布的峰 .基于煤中芳香 -CH和脂肪 -CH的振动对红外光谱的吸收贡献 ,对我国煤化程度显著差异的 18种煤的红外光谱进行研究 ,确定了煤中的芳香 -CH和脂肪 -CH含量 ,获得了我国煤的结构参数 .实验表明煤的Har/Hal和芳香度 (fa)与煤化程度的有关 ,碳含量 85

Based on the band absorption of aromatic-CH and aliphatic-CH in the IR spectrum of coals, IR spectroscopy of 18 rank typical Chinese coals has been studied, and the concentration of aromatic-CH and aliphatic-CH in 18 rank coals were determined, which characterize the structure parameter for Chinese coals. The results indicated that the values of H ar /H al and f a are relative to coal rank. Carbon content 85% is the characteristic value of coal.