东三江地区新近系褐煤煤质特征

东三江地区新近系中一上新统富锦组含有巨厚层褐煤，其含煤性以朝阳、七星河区为最好，主要可采煤层为6、10号煤层，根据大量煤质数据分析，煤的显微组分均以镜质组占绝对优势，其含量在75％左右，惰质组含量约占3％，灰分产率为20％，挥发分产率为55％，朝阳区10号煤层全硫含量平均为0．24％，七星河区为0．13％，根据煤质特征综合分析．富锦组煤层属特高挥发分、低磷-特低磷、低硫-特低硫、中灰、富油、中-富腐殖酸高热值褐煤。

Coal Quality Characteristics of Neogene Lignite in Eastern Sanjiang Area

There are very thick lignite hosted in the Fujin Formation, Miocene-Pliocene Series, Neogene System, in the Chaoyang and Qixinghe areas have best coal-bearing properties, the Nos.6 and 10 coal seams are the main mineable coal seams. According to large amount coal quality analytical data, about 75% vitrinite holds the absolute predominance in maceral, inertinite is about 3%, ash content 20%, volatile matter 55%. No.lO coal seam average total sulfur content in Chaoyang area is 0.24%, in Qixinghe area 0.13%. After comprehensive analysis, considered that coal seams in Fujin Formation belong to extra high volatile matter, low to extra low phosphorus and sulfur, medium ash, oil rich, medium to rich humic acid, high thermal value lignite.