蒙西侏罗纪煤低温氧化红外官能团分析  

Functional Groups Analysis on Jurassic Coal of Inner Mongolia Based on Infrared Spectrometer

作　　者：程根银[1] 程宥 曹健[2] 冯山[2] 

机构地区：[1]华北科技学院安全工程学院,北京东燕郊101601 [2]华北科技学院研究生处,北京东燕郊101601

出　　处：《华北科技学院学报》2016年第4期88-95,共8页Journal of North China Institute of Science and Technology

基　　金：国家自然科学基金资助项目(U1361130);中央学校基本科研业务费资助(3142013115)

摘　　要：侏罗纪煤成煤时代较新,变质时间较短,与其他时期煤相比,其内在微观分子结构也存在区别。为了弄清楚侏罗纪煤原始煤样及低温氧化至200摄氏度后官能团特性及其变化规律,采集内蒙古西部地区侏罗纪煤层煤样4组作为实验对象,使用Nioclet i S5型傅里叶变换红外光谱仪,采用溴化钾压片法,分别对侏罗纪原始煤样及低温氧化至200摄氏度煤样进行红外官能团实验,并得到对应红外光谱图。实验结果表明侏罗纪煤样在低温氧化过程中(氧化至200摄氏度),羟基对煤氧复合作用有较大影响;脂肪烃是对试样煤样氧化过程中影响较大的官能团之一;含氧官能团参与了实验煤样低温氧化过程,但其影响作用较小;芳香烃对实验煤样低温氧化过程无明显影响。Jurassic coal forming period and metamorphic period are relatively short and whose microscopic molecular structure is also different from the coal formed in other periods. To find out its the functional groups characteristics and changing regulation between original Jurassic coal samples and coal samples oxidized at 200℃ gathered four Jurassic coal samples from Jurassic coal seams in the west of Inner Mongolia as experimental subjects, and processed infrared spectrum experiments on these Jurassic coal samples and the oxidized coal samples on fourier transform infrared spectroscopy （FTIR） Nioclet type iS5 with KBr pellet method, and got infrared spectrogram. The results of those experiments show the function groups change lows in the Jurassic coal samples low temperature oxidation process （to 200℃ ）, and it shows that hydroxyls had a significant impact, aliphatic hydrocarbons had a big impact and oxygenic groups had a relatively small impact on the oxidation process, the arene had almost no impact on it.

关 键 词：侏罗纪煤 低温氧化 红外光谱 官能团 

分 类 号：TQ530[化学工程—煤化学工程]