Flexible Application of Catalytic Regeneration Technology to HOC Units

In order to enlarge refinery capacity of HOC units and solve the problem of insufficient main air, the complete catalyst regeneration method was replaced by conventional regeneration method in the second catalytic cracking unit in Luoyang refinery. This paper discusses the problems existed before regeneration method modification, modification plan and the technological characteristics after modification. The processing capacity enlarged. technological indexes were more optimum, and light on yield increased 1.5 percentage percent.