Pretium Optimus

Energy efficient operation of modern pelletizing plants while maintaining environmental constraints and high production rates is always a challenge for operators. Optimus supports you  in real time to operate the plant within tight production requirements. Outotec process-know how is integrated in Optimus and available for the customer at all times.

Optimus is based on a plant simulation including heat and mass balance. The tool uses this simulation to calculate efficient operational modes in real time, based on current process conditions. When comparing the tool’s proposed plant operation with current process conditions, Optimus detects inefficient operation. For example, Optimus notices if a pressure set point at the plant is set too high; in which case the tool highlights the plant area where the operation could be improved. Optimus provides a description of the mal-operation and suggests improved set points in order to run the plant more efficiently.

In the example shown, the pelletizing plant runs with insufficient pressure set points. Appropriate set points are presented to the operator via a separate table. In addition, the tool calculates the predicted energy consumption and compares it to the current consumption. Optimus processes the plant data which is available via communication interface to the DCS. In addition, the tool takes site laboratory values into account. The final results are presented in an intuitive way to the operating personnel via additional screen in the pellet plant control room. The Alumina Digital Process Advisor is implemented in Outotec’s proprietary ACT platform.