论文部分内容阅读
在渣油热反应体系中，第二液 相的形成特性与渣油的化 学组成、物理结构和化学 结构有关。物理第二液相的形成特性决定于渣油胶体构造的稳定性和渣油体系的稀释效应系数，渣油体系的胶体稳定性越高或稀释效应系数越小，物理第二液 相越不容易形成。在化学物理第二液 相的形成过程中，由原生沥青质的杂原子因素和脂肪性侧链因素共同决定的化学作用的影响是第一位的，其中杂原子因素的影响更显著，而由渣油体系不稳定性和稀释效应构成的物理作用的影响则居于次要地位。化学第二液相的形成取决于原生胶质和原生沥青质组分的杂原子因素和脂肪侧链因素的联合作用，但脂肪性侧链因素的贡献比杂原子因素的贡献大得多，杂原子因素的贡献已经微不足道。
In the resid thermal reaction system, the formation characteristics of the second liquid phase are related to the chemical composition, physical structure and chemical structure of the residuum. The formation of the physical second liquid phase depends on the stability of the residue colloidal structure and the dilution effect coefficient of the residue system. The higher the colloidal stability of the residue system or the smaller the dilution effect coefficient, the less likely the physical second liquid phase will be form. In the formation of the second phase of chemical physics, the influence of the chemistry determined by the heteroatoms and fatty side chains of the primary asphaltenes is the first one, and the influence of the heteroatoms is more significant. The impact of the physical effects of the residue system instability and dilution effect is secondary. The formation of the second chemical liquid phase depends on the combined effect of the heteroatoms and fat side chains of the native gum and primary asphaltene components but the contributions of the fatty side chains are much greater than those of the heteroatoms, Atomic contribution has been negligible.