General Prospecting Institute China National Administration of Coal Geology，Beijing ，China

为了研究内蒙古白音华煤田褐煤直接液化可行性与煤岩显微组分、煤质参数之间的关系,对三号露天矿3-1煤层煤样进行了采样测试与分析,结合前人对于褐煤直接液化相关的煤岩组分和煤质指标研究成果,探究了煤岩惰质组含量、灰分、挥发分、H/C原子比对褐煤直接液化的影响。研究结果表明:低惰质组含量、低灰分、高挥发分、高H/C原子比的褐煤有利于直接液化;3-1煤层煤岩显微组分中惰质组含量较低,小于8.70%,煤质参数中精煤灰分大部分小于10%,挥发分大于35%,H/C原子比大部分大于0.75。综合分析,3-1煤层褐煤各项参数符合直接液化指标要求,可作为较理想的直接液化原料煤。

In order to research the relationship between the direct liquefaction feasibility of lignite in Baiyinhua Coalfield and coal macerals and coal quality parameters, the samples were collected and tested from No. 3-1 coal seam in No.3 Open-pit Mine.In combination with the former researchers’ results of coal macerals and coal quality indexes, this paper discussed the effects of inertinite content, ash, volatile content and H/C ratio on direct liquefaction. The results showed that the low inertinite content, low ash content, high volatile content, and high H/C atomic ratio of lignite were favorable for direct liquefaction. The No.3-1 coal seam had a lower content of inertinite, which was less than 8.70%, most of coal ash content of clean coal was less than 10%, volatile matter content was greater than 35%,most H/C atomic ratio was greater than 0.75. Based on the comprehensive analysis, all parameters of No.3-1 coal seam met the requirements of direct liquefaction index and could be used as an ideal direct liquefaction raw material.