开滦矿区含CO煤层分子结构与煤岩组分关系  

Study on Relationship Between Molecular Structure and Macerals in CO Containing Coal Seam in Kailuan Mining Area

作　　者：肖藏岩[1,2] 韦重韬[1,2] 郭立稳 邹明俊[1,2] 

机构地区：[1]中国矿业大学资源与地球科学学院,江苏徐州221008 [2]煤层气及成藏过程实验室,江苏徐州221008 [3]北华航空学院,河北廊坊065000

出　　处：《煤炭工程》2014年第9期126-128,共3页Coal Engineering

基　　金：河北省自然科学基金(E2011209026);国家重点基础研究发展计划(973)资助项目(2009CB219605);国家自然科学基金资助项目(50974050)

摘　　要：针对开滦矿区煤层开采工程中CO超标的现象,采集了22个典型煤样,通过元素分析和煤岩组分分析研究了H/C、O/C及fa、2(R-1)/C与煤岩显微组分的关系。结果表明,H/C与镜质组和矿物质呈二次曲线关系,与惰质组负相关;O/C与镜质组呈正相关,与惰质组和壳质组负相关;fa与镜质组和矿物质为二次曲线关系,与惰质组为三次曲线关系。研究认为:惰质组对煤中CO生成的贡献较大,镜质组含量少于50%时煤分子结构在地质构造作用下发生重排、异构现象,生成CO。Aiming at the over standard condition of CO in coal seams of Kailuan mining area, 22 typical coal samples were collected, the relationship between H/C, O/C and fa, 2 （ R - 1 ）/C and coal macerals were analyzed. The results show that, the relationship is second degree curve between H/C and vitrinite, and between H/C and minerals, but negatively correlated with vitrinite; O/C is positively correlated with vitrinite, negatively correlated with inertinites and exinite; the relationship is second degree curve between f, and vitrinite, and between fa and minerals, and that with inertinites was cubic curve. Research shows that, contribution of inertinite is greater for CO generation, and when vitrinite content is below 50%, the rearrangement and isomerism of coal molecular structure may occur, under geological tectonism, generating CO.

关 键 词：煤分子结构 煤岩组分 芳碳率 环缩合指数 

分 类 号：TD712[矿业工程—矿井通风与安全]