Summary for the C1 example simulation

This example demonstrates how you can use AVEVA Process Simulation to design a distillation column to separate methanol from a water-methanol mixture. We provide two individual simulations, C1 - Water Methanol Separation and C1 - Water Methanol Separation Detailed Engineering, which illustrate how to approach the separation. The C1 - Water Methanol Separation simulation illustrates the conceptual engineering in Process mode. The C1 - Water Methanol Separation Detailed Engineering simulation illustrates the detailed engineering. It is a continuation of the first simulation and provides for both the detailed steady-state equipment design in Process mode and the process strategy validation in Dynamics mode. We provide these simulations with the following objectives in mind:

• Design a distillation column that separates methanol and water into products with required purity.

• Demonstrate how to trade specifications for different design requirements.

• Demonstrate how to migrate a conceptual design simulation to a detailed design simulation.

• Demonstrate how to model external condenser and reboiler circuits for detailed engineering.

• Validate the process control strategy.

The following figures illustrate the two different water-methanol separation simulations. Figure 1 shows the C1 - Water Methanol Separation simulation as a conceptual design model. Figure 2 shows the C1 - Water Methanol Separation Detailed Engineering simulation as a detailed engineering model.

Figure 1: Conceptual design model

Figure 2: Detailed engineering model and dynamic simulation

The Column model addresses both conceptual and detailed engineering. For conceptual engineering, we model the water-methanol separation process with a single column model representing both condenser and reboiler duties on the top and bottom stage. We then use built-in Column features to migrate this model to an extended, detailed simulation that models the condenser and reboiler externally. The extended model enables more detailed equipment design, reports utility requirements, and allows for pipe sizing. We also perform flow analysis in Fluid Flow mode and dynamic simulation in Dynamics mode for the extended model. Both simulations report identical results in Process mode regarding the separation and the internal column profiles.