Agenda Distillation Design in CHEMCAD

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Day 1

09:00-11.30 Introduction: Modelling of VLE and VLLE in a nutshell
Azeotropic behaviour and infinite dilution activity coefficients
Distillation modelling via the equilibrium stage approach
Single and multiple stage equipment, different configurations
Stripping and rectifying, mass balance and McCabe-Thiele (binary)
11.00 – 11.30 Break
11.30-13.30 Workshop: McCabe -Thiele from simulation result profile
Short introduction to Excel-VBA
Workshop: McCabe-Thiele VBA-macro
Optimum feed stage and pinching, cure pinching
Minimum reflux ratio and tangent pinch
Complex columns (> 1  feed, intermediate cooling or heating)
Open questions

Day 2

 

09:00-11.30 Multicomponent columns and key components
Component lumping
Interpreting composition and temperature profiles
Hengstebeck-, key-ratio- and d/b-plots from simulation result profile
Interpretation: Pinching in multicomponent columns
Retrograde distillation
Optimum feed location
11.00 – 11.30 Break
11.30-13.30 Workshop: Hengstebeck-, key-ratio- and d/b-plots in Excel
Column profile in ternary diagrams, distillation and residual curves, distillation fields.
Balance lines and mixing points.
Application examples
Final discussion, open questions