LCO promoter having proper acid sites and stable mediumpore distributions by adopting the pore improving method was developed for heavy oil catalytic cracking.
采用添加孔改进剂的方法,开发了具有适当的酸中心分布、稳定的中孔分布的多产柴油重油裂化助剂。
2
The variation of mediumpore diameter and porosity factor is in accordance with that of the pore volume, showing a high permeability of low rank coal reservoirs.
中值孔径、孔隙率的变化特征与孔容一致,预示了低煤级煤储层较高的基岩渗透率。
3
The issue of elastic wave transmission in anisotropic fluid-filled poremedium is one of difficulties in current petroleum exploration and study of seismology.