APC - Selectopol
APC uses a model-based predictive control technology that drives the process towards the desired targets through the manipulation of several variables simultaneously while observing all process constraints. APC has a proven track record in delivering business objectives: reducing energy costs, increasing yields and improving operability.
As a process licensor, catalyst manufacturer and advanced control technology supplier, Axens combines all the necessary expertise for successful Selectopol APC projects.
Our control strategy for Selectopol consists of:
- selective hydrogenation (Alkyfining)
- Meet Butadiene (BD) specification in the effluent
- Limit olefin hydrogenation
- Selectopol reactors
- Monitor individual ΔT
- Control global ΔT for n-Butene selectivity maximization
Minimization of the reboiler duty for product separation through control of the internal reflux ratio (IRR).