Aspen Rate-Based Distillation

Learn how to use the Aspen Rate-Based Distillation to predict tray efficiency or HETP and evaluate column set up. Learn how to use Rate-Based Distillation model to match real column data. Create accurate simulations of reactive and non-reactive column separations.

Audience:

  • Engineers who need to simulate accurate models of rate limited separations
  • Former RateFrac users converting to Aspen Rate-Based Distillation

Training Details

  • Course Id:

    EAP251

  • Duration:

    1 day(s)

  • CEUs Awarded:

    0.7

  • Level:

    Intermediate

Benefits

  • Create accurate simulations of reactive and non-reactive column separations which are rate limited
  • Use detailed rate-based modeling to understand and improve separation performance
  • Become prepared to work with difficult simulations through exposure to convergence and troubleshooting techniques

Approach

  • Instruction on basic topics
  • Demonstrations of features
  • Instructor-guided exercises
  • Participate in hands-on workshops that apply learned concepts
  • Detailed course notes are provided

Pre-requisites

Must have attended
  • EAP101 Aspen Plus: Process Modeling
  • Good familiarity with Aspen Plus process modeling and the graphical user interface
  • To apply skills after taking course, access to Aspen Plus should be available

Subsequent Courses

EAP250 Aspen Plus: Distillation Modeling

Agenda

Introduction to Rate-Based Distillation
  • Review difference between equilibrium and rate-based model
  • Recognize the capabilities of the Aspen Plus Rate-Based Distillation application

Using Aspen Plus Rate-Based Distillation
  • Identify and explain how to enable, specify, and run Aspen Rate-Based Distillation
  • Demonstrate the conversion of an equilibrium Aspen Plus RadFrac column to a column that uses Aspen Rate-Based Distillation
  • Workshop Compare the operation of the equilibrium RadFrac model to Aspen Rate-Based Distillation
  • Workshop: Use an existing equilibrium-based column and enter rate based data

Reactive Distillation with Aspen Rate-Based Distillation
  • Recognize capabilities and options available for running Aspen Rate-Based Distillation with reactive processes
  • Demonstrate how to tune and adjust a reactive distillation model with the various Rate-Based functions
  • Workshop: Use Aspen Rate-Based Distillation to simulate the synthesis of an ether in a distillation column
  • Workshop: Capture CO2 from a gas stream using caustic solution in a Rate-Based absorber column

Tuning the Aspen Rate-Based Distillation Model
  • Identify and explain the rate-based distillation characteristics of the Pack/Tray Rating forms
  • Demonstrate how to use the Aspen Rate-Based Distillation tuning parameters
  • Workshop: Set up a sensitivity analysis and to study the influence of tuning data
  • Workshop: Use a Calculator Block to make corrections for tuning parameter adjustments
  • Workshop: Perform a design/sizing calculation within a Rate-Based model

Convergence and Diagnostics
  • Explain the Aspen Rate-Based Distillation calculation procedure
  • Review the various convergence settings associated with Rate-Based Distillation
  • Discuss typical problems encountered when running the Rate-Based Distillation model and provide troubleshooting techniques for achieving convergence
  • Workshop: Use sample rate-based distillation columns to practice and apply different convergence strategies

Appendix - The Rate-Based Modeling Approach
  • Identify the mathematical model of the Aspen Rate-Based Distillation non-equilibrium segment  
  • Identify the calculation of height equivalent to a theoretical plate (HETP) and tray efficiency

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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.