Spent catalyst riser
Spent catalyst
j-bend
Reactor
Stripper
Reactor
riser
Cyclone
stripper
vessel
Stripper
Reactor
riser
Spent
catalyst
standpipe
Throttling
sude valve
Spent catalyst
j-bend
Feed
pkl
Regenerated
catalyst j-bend
Slide
valve
Regenerated
catalyst
standpipe
Spent
catalyst
standpipe
Regenerator
Upper
regenerator
Regenerated
catalyst
standpipe
Lower
regenerator
Regenerated
catalyst j-bend
Plan view
Stripper
coke
Regenerated
catalyst
standpipe
Fig. 22 Exxon flexicracking IIIR unit
288
W. Letzsch