The microstructures and density of the industrial coke samples from the disengager of fluidized catalytic cracking unit(FCCU),and the relation between them were analyzed.

• 通过对催化裂化装置(FCCU)沉降器内结焦物的微观组织结构和密度的分析,考察了两者之间的内在关系,探讨了油气流动对结焦过程的影响。