The reactor and regenerator are considered to be the heart of the fluid catalytic cracking unit.
The reactor is a vessel in which the cracked product vapors are:
(a) separated from the spent catalyst by flowing through a set of two-stage cyclones within the reactor and (b) the spent catalyst flows downward through a steam stripping section to remove any hydrocarbon vapors before the spent catalyst returns to the catalyst regenerator.
Since the cracking reactions produce some carbonaceous material that reduces the catalyst reactivity, the catalyst is regenerated by burning off the deposited coke with air blown into the regenerator.
STI can design and manufacturing complete equipment or replacement parts for existing Reactor and Regenerators.