【摘要】 西北地区中侏罗纪的煤层多为不粘煤、长焰煤 ,其中不粘煤的煤岩显微组分以惰质组中的丝炭化物质居多 ,也见有镜煤透镜体 ,按镜质体反射率可将其变质程度分为Ⅰ、Ⅱ阶段 ,它与惰质组含量有很大关系 ,惰质组含量高 ,煤化程度低是造成煤对二氧化碳分解率高的主要因素之一更多还原

【Abstract】 In the middle Jurassic period coal seam, non-caking coal and long flame coal are most in reserves. In the maceral of non-caking coal, the fusinization substance content is most in the inertinite. The vitrainte is also found. According to vitrinite reflectance, its metamorphic grade can be divided into Ⅰ and Ⅱ metamorphism stage. It is of vital importance to high content of inertinite content. The high CO 2 decomposition rate is caused by high content of inertinite and low coalification degree.更多还原