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Distillation (Water-Methanol) Simulation:


Envision Systems Distillation Water (Methanol) SimulationCopyright © 2009 by EnVision Systems Inc. All rights reserved worldwide.

The Distillation simulation is a rigorous and high-fidelity mathematical process model that provides a realistic dynamic response for a methanol-water distillation column.

Process Overview:

A methanol-water distillation unit separates a mixture of methanol and water, into methanol-rich and water-rich streams. The methanol-rich product is drawn from the top of the tower and the water-rich stream is drawn from the bottom of the tower.

The distillation unit consists of 17 trays, overhead water cooled total condenser, reflux drum and steam heated thermo-siphon reboiler.

Major Operations for Trainee Practice:

  • Startup and Shutdown Operations
  • Normal Operations
  • Emergency Shutdown Operations
  • Troubleshooting Equipment, Instrument and Control Valve Malfunctions
  • Malfunction Recovery Actions

Simulation Features:

  • Detailed Tray-by-Tray Calculations
  • Condenser Flood Back Simulation
  • Plant Alert and Monitor for
    • Flooding of Trays
    • Opening of Safety valves
  • Equipment Details
  • Dynamic Tray Animation with Detailed Information
  • Dynamic Bar Charts for Tower Temperature, Flows, Pressure Drop Profiles


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