摘要
通过对不同煤化程度煤样的镜质组反射率测定和X衍射等实验,引入煤化度p的概念,对煤的化学成分及微晶结构进行分析,发现煤化度p随煤化程度的升高呈阶段性演化特征,并能规律地反映煤演化过程中成分结构的变化,表明煤化度是表征烟煤阶段煤化程度的可靠指标;在中低煤化程度阶段,煤岩组分是影响煤化度的主要因素:丝炭具有一定的微晶结构,镜煤微晶化程度较低,而树脂煤结构不能用煤化度来描述.
On the basis of vitrinite reflectivity and X-diffraction experiments, the sitallization degree of coal was analyzed, and the chemical component and microcrystal structure of middle/high-rank coal were studied. The results show that the sitallization degree p of coal changed in stages in coalification process, which leads to a similar changed in chemical properties of coal,it is suggested that the sitallization degree can be as the index of coalification rank for middle-rank coal. Macerals were the mainly influencing factor in coalification process: fusain has the microcrystal structure, vitrain has low microcrystal degree, but structure of resinite can not described by sitallization degree of coal.
出处
《煤炭转化》
CAS
CSCD
北大核心
2007年第4期1-4,共4页
Coal Conversion
基金
国家自然科学基金重点资助项目(50534070)
河南省自然科学基金资助项目(200510460014)
河南理工大学博士基金资助项目(648196).
关键词
煤化度
煤化程度
煤演化
coal sitallization degree,coalification degree,coal evolution