自燃煤有机地球化学特征研究

An Organic Geochemical Study of Sponfanerus Combustible coals

通过有机地球化学研究，发现神府、焦坪、灵武三种自燃煤的ＣＨ＿２Ｃｌ＿２抽提率、族组分组成、有机地球化学参数有较大的差别。色谱曲线表现为两种类型，即单峰型和双峰型。生物标志物组合也有较大的差别。由于这种有机地球化学特征的不同，导致了自燃煤的自燃属性的不同。因而，有机地球化学方法可以用于自燃煤的研究。

By means of Coal petrology and organic geochemistry,it has discovered thafthereis a difference among extraction percent of CH_2Cl_2 ,group compornds and organic geo-chemical paramefres of sponfaneous combustion coals frorn shenfu,Jiaoping and LingwuCoal Distrct.It shows 2 types of carve,thafis monopeak curve and two-peqk curve in-gaschromafogram curve. It also demonstrates large diflerence among biomarkers.It is thedistinction of Organic qeochemical charactenistics fhaf gives rise to diflerence of self-igni-tion chara cten’stics of Spontaneous combusfion coals. So that,the organric geochenicalmethods canbe effectively used in the study of spontaneousdombustion coals.