摘要
提出了利用分形几何确定多孔介质孔尺寸分布的方法。考虑多孔介质中孔间的屏蔽 ,采用此方法得到的孔尺寸分布范围比采用平行孔模型宽。分别采用本方法和平行孔模型测定γ Al2 O3 催化剂的孔尺寸分布 ,构造简单立方体三维网络模型模拟压汞过程 ,并将模拟曲线与γ Al2 O3 压汞实验曲线比较 ,结果表明 。
A new method has been developed to obtain the pore size distribution of porous media by means of fractal geometry, which takes into account the effect of pore shielding in porous media. The pore size distribution estimated by the new method is broader than that by parallel pore model. A simple cubic three dimensional network model for simulating the mercury injection process is established on the basis of the pore size distribution obtained by using the new method and parallel pore model respectively. By comparing the simulation curves with the mercury injection curve for the γ Al 2O 3 sample, the result shows that the pore size distribution of porous media calculated by this new method is more reasonable than that by parallel pore model.
出处
《石油学报（石油加工）》
EI
CAS
CSCD
北大核心
2002年第3期86-91,共6页
Acta Petrolei Sinica(Petroleum Processing Section)
基金
国家自然科学基金资助项目 (2 97760 3 8)
