以辽宁抚顺地区产出的煤精为研究对象,通过红外光谱测量和变温实验,了解煤精官能团表征及热变异行为。结果显示:辽宁抚顺煤精红外吸收光谱和衰减全反射光谱谱峰均集中于2 900~2 800和1 600~1 200 cm-1两个区域;低温氧化的过程红外光谱拟合处理表征煤精的热变异行为由ν(CH2)伸缩振动引起的吸收谱带随温度的升高呈下降趋势,而ν(CO)伸缩振动引起的吸收谱带则随温度的上升呈上升趋势,由于受到石化过程中的氧化作用,煤精中的烷烃逐渐减少,而含氧官能团不断增加,由此推测煤精的生成环境是厌氧还原型环境。
All samples tested are extracted from West Open-pit Coal Mine of Fushun(WOPCM), Liaoning. With FTIR with reflection testing method and varied temperature, representation of functional group and thermal variation behavior of jet are analyzed. The result shows that: representation of FTIR and ATR-FTIR of Fushun jet concentrates mainly cover two areas: 2 900~2 800 and 1 600~1 200 cm-1; the absorption spectrum band of jet caused with stretching vibration ofν(CH2) becomes lower and lower along with the temperature rise in the process of low-temperature oxidation while the absorption spectrum band caused by stretching vibration ofν(CO) becomes higher and higher. Due to oxidation in the process of petrifaction, alkane in jet becomes less and less while the oxygen-containing functional group keeps on increasing, thus, the formation environment of jet consists anaerobic reduction environment.