摘要
对加水热解条件下煤的生排烃特征进行了分析，煤的正构单体烷烃排烃效率与实际地质情况下排烃效率有差异，因此，煤加水热解条件下的排烃效率不能直接用于实际的地质情况，而应当与具体的情况结合起来加以修正才可应用。煤的液态产物正构单体烷烃中基本以低碳数部分为主，高峰产率碳数集中于Ｃ１４以下，而这部分烃在一般的氯仿沥青“Ａ”抽提过程中基本都损失了。并且分子越小，损失越多，因而在利用一般的氯仿沥青“Ａ”数据计算生烃量、排烃量和资源量时，应对轻质烃部分进行适当的校正。各正构单体烷烃的排烃特征不一致，产率较高的Ｃ９－Ｃ１２排烃效率较低，Ｃ１３－Ｃ３０部分正构单体烷烃的排烃效率却较高，Ｃ８以下的低碳数部分排烃效率也高。
The characteristics of generation and expulsion of single normal alkanes in coal source rocks under hydropyrolysis is analyzed. There is difference between expulsion efficiency of the hydrocarbons hydropyrolized with that of the hydrocarbons in underground source rocks. The expulsion efficiency of the hydrocarbons in source rocks by hydropyrolysis is higher than that in underground source rocks.The former can not be used in practice directly. The single normal hydrocarbons of liquid product are mainly the normal hydrocarbons and its carbon number is lower than 14.In the course of general chloroform extraction,the hydrocarbons whose carbon number lower than 14 can be lost easily. When the amount of generated and expelled hydrocarbons and resource extent are calculated,these light hydrocarbons should be added.Expulsion efficiency of single normal hydrocarbons are different. The expelling efficiency of hydrocarbons with carbon number of 9～ 12 is lowest,that of hydrocarbons whose carbon number between 13 and 30 and that of hydrocarbons whose carbon number lower than 8 are high.
出处
《石油大学学报（自然科学版）》
EI
CSCD
1997年第6期13-15,共3页
Journal of the University of Petroleum,China(Edition of Natural Science)
关键词
煤
热解
热解产物
排烃量
煤成烃
Coal
Hydropyrolysis
Hydrocarbon analysis
Pyrolyticoil
Pyrolytic product
Asphalt
Hydrocarban yield
