VR (vacuum residua) and CCB oil (catalytic cracking bottom oil) are complex mixtures of hydrocarbons. The investigation of the compatibility and the incompatibility of them is helpful to optimize the ratio of CCB oil/VR in FCC processing and VR solvent deasphalting processing to prevent troubles. In the present work, the mixture property of VR with CCB oil was studied from the standpoint of colloidal dispersion in several different experiments. The investigation shows that in the course of CCB oil being blended with VR, there are two competitive processes of dissolution and flocculation, and t...
