Distillation accounts for up to half of an oil refinery's total energy bill. Wherever reflux or reboiler control is not in cascade mode, which is surprisingly common, 5-10% of this energy can potentially be saved, in addition to product quality improvements.

Read these articles about the basics of distillation control and the trade-offs between ARC and MPC:

• Distillaton control: MPC and ARC
• Weighing in on distillation dual temperature control

Contact APC Performance for expert assistance in designing or troubleshooting distillation column controls.

Distillation Control Consulting: