Advantages
Process Features
Converts pyrolysis C4s to propylene
High conversion at moderate operating conditions
The OCT can be integrated with a steam cracker
The OCT can be integrated with a fluid catalytic
cracker (FCC)
Easier propylene purification
Has a fixed bed catalyst system with in situ regeneration
Can operate from nameplate to zero propylene
production
Process Benets
Greatly improves C4 processing economics
Lowest capital for incremental propylene production
Permits an increase in propylene-to-ethylene production ratio to above 1.0, a 50% increase
Ethylene and butylene produced in the FCC are
upgraded to propylene, improving FCC operating
economics
Reduced capital since superfractionator not required
Simple operating cycle
Allows owner to optimize the product ratio when
prices change