煤结构演化煤化度指标  

COAL SITALLIZATION DEGREE INDEX CHANGED IN COAL STRUCTURE EVOLUTION

作　　者：张玉贵[1] 曹升玲[2] 谢克昌[3] 

机构地区：[1]河南理工大学安全科学与工程学院,河南焦作教授454003 [2]河南理工大学材料科学与工程学院,河南焦作研究生454003 [3]太原理工大学

出　　处：《煤炭转化》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).

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.

关 键 词：煤化度 煤化程度 煤演化 

分 类 号：TQ530[化学工程—煤化学工程]