摘要
本文用三种非恒温化学动力学模型对不同类型的未成熟干酪根的岩石评价仪热解实验数据进行回归和拟合,发现总包一级反应模型仅可用于Ⅰ类干酪根热解实验数据回归拟合;最大反应速率模型可用于三类干酪根热解数据回归拟合,但其中Ⅱ、Ⅲ类干酪根的回归结果仅代表其最大反应速率点处的情况;串联一级反应模型可用于所有类型干酪根热解全过程。三类干酪根主要生烃阶段的活化能具有EⅢ>EⅡ>EⅠ的规律。并提出了根据动力学规律对干酪根进行分类的方法和初步标准。
Three non-isothermal chemical kinetic models are used tocorrelate the data from pyrolysis experiments with Rock-Eval apparatus for different kinds of kerogen. The overall first order kinetic model can fit only the experimental data of type I kerogens. The maximum reaction rate model can be used to correlate the experimental data for other types than type Ⅰ, but for type Ⅱ and Ⅲ kerogens, the model can reflect only the situation of the maximum rate point of pyrolysis reaction. The series first order reaction model is suitable for the whole pyrolysis process of all kinds of kerogen. The activation energy in the main stage of hydrocarbon generation for three kinds of kerogcn is order of EⅢ>EⅡ>EⅠ. A method for classifying kerogens and its tentative criteria are suggested on the basis of pyrolysis kinetics.
出处
《石油大学学报（自然科学版）》
CSCD
1990年第2期74-84,共11页
Journal of the University of Petroleum,China(Edition of Natural Science)
关键词
干酪根
热解
动力学
Kerogen
Pyrolysis
Kinetics
Kinetic model
