Rigorous Design and Rating of Distillation Columns

Course Id:  EAP150   |   Duration:  1.00 day(s)   |   CEUs Awarded:  0.7   |   Level:  Introductory

Course Objective

Distillation columns are both capital and energy intensive. The column hydraulic performance is important to ensure high separation efficiency and product quality. Rigorous modeling of columns with hydraulics can greatly improve energy utilization and reduce capital costs.
In this course, users will understand how to interactively design and rate distillation columns in Aspen Plus.


Process Engineers who would like to learn how to design and rate distillation columns and column internals


Clear guidance on fundamental topics

  • Industry workflows
  • Hands-on workshops
  • Experienced instructor-guided demonstrations
  • Q&A on student-specific problems


Familiarity with process simulation is preferred, but not required.

Class Schedule

Class Agenda

EAP150: Rigorous Design and Rating of Distillation Columns

Introduction to Column Design & Rating
  • Validating phase equilibrium predictions
  • Basic overview of the RADFRAC distillation model
  • Defining column specifications (using spec/vary)
  • Tray sizing and design
Workshop: Design the internals of a column based on the liquid/vapor flow profile from process simulation
  • Simulating common high-capacity tray modifications
  • Hydraulic analysis visualization
  • Sizing packed sections
  • Evaluating column performance for off-design conditions
Workshop: Perform rating studies of a column to evaluate if the column can handle an increase in the feed
  • Troubleshooting column convergence
Using Rate-Based Distillation
  • Benefits of rate-based modeling
  • Understanding flow models and discretization options
  • Calibrating rate-based models
  • Convergence for rate-based column models
Workshop:  Use detailed rate-based modeling to understand and improve column performance
Course Conclusion
  • Review and solidify concepts presented in the course

Aspen Technology, Inc. awards Continuing Education Units (CEUs) for training classes conducted by our organization. One CEU is granted for every 10 hours of class participation.