3 jours PSE/DISTEXT-E
- Anyone involved in the operation of ED columns (engineers, shift leaders, panel operators, field operators).
- To deepen technical understanding of an ED column and its principle.
- To know about the action of the solvent.
- To explain the significance of operating parameters.
- To analyze the effect of each parameter acting on the operation of the column and on the qualities of products.
- To counteract the most frequent incidents.
Les + pédagogiques
- Implementation of static simulation results with C4/ACN and C6/NMP treatment.
- Working groups to study operating situations that could arise.
Solvent effect on liquid-vapor equilibria 0.75 jour
- Typical composition of cuts to be treated: C4 and C6 cuts of a steamcracker or other units.
- Natural volatility of compounds and focus on impurities to be removed, highlighting constraints and treatments available.
- Action of the solvent and effects on relative volatilities of compounds for separation.
- Effects of pressure, solvent ratio and feed composition.
Behavior of an extractive distillation column 0.75 jour
- Feed composition. Qualities required.
- Mass balance, product recovery ratio, losses of solvent.
- Analysis of operating parameters: pressure and its control system, solvent ratio, solvent temperature, thermal balance and liquid-vapor traffics.
- Concentration profile: HC and solvent, behaviors in extractive and non-extractive zones.
- Meaning of temperatures and of its profile.
Downstream treatment 0.5 jour
- Solvent recovery system and purification.
- Make-up of solvent and adjustment of its composition in the solvent loop.
- Superfractionation if needed.
Operating variables of an extractive distillation column 0.5 jour
- Instrumentation and process control scheme.
- Meaning of tuned parameters.
- Modification impact of: solvent ratio, reboiler ratio, solvent temperature and other parameters depending on the process configuration.
Upsets and incidents 0.5 jour
- Solvent: decrease in flowrate, temperature modification, regeneration trouble and loss of recycling.
- Feed: unexpected change in flowrate or composition.