This video is regarding FCCU unit overview and its configuration in refinery. Refinery overview video link: • Refinery Configuration... What is crude oil? • What is crude oil ?
There are basically two reasons 1. After cracking reaction product leaves from VSS chamber and falls on stripper packing, here we provide stripping steam in order to strip off trapped hydro carbon from catalyst. So that only spent catalyst should go to the regenerator not hydrocarbon. 2 How much amount of stripping steam we give it depends on regenerator dense bed temperature, if dense bed temperature drops we reduce stripping steam and vice versa.
