Solids Modeling Using Aspen Plus

Course Id:  EAP2911   |   Duration:  2.00 day(s)   |   CEUs Awarded:  1.4   |   Level:  Intermediate

Course Objective

Become proficient in modeling processes containing solids handling equipment. Determine optimal process conditions for new or existing solids processes. Support troubleshooting and de-bottlenecking of solids processes.

Course Overview

  • Become proficient in modeling processes containing solids
  • Determine optimal process conditions for new or existing solids processes
  • Support troubleshooting and de-bottlenecking of solids processes


  • Gain the practical skills and knowledge to begin modeling new and existing solids processes
  • Learn practical techniques for building and troubleshooting solids models
  • Reduce process design time by testing various plant configurations


  • Process Engineers and Particle Scientists who will be modeling solids processes
  • Engineers and Managers involved in developing and designing solids handling processes
  • Anyone interested in solids modeling


  • Instruction on basic topics
  • Discussion about the general approach and the key elements for successful solids simulations
  • Instructor-guided demonstrations of features
  • Detailed course notes
  • Answer keys


EAP101 Aspen Plus: Process Modeling

Class Schedule

Class Agenda

EAP2911: Solids Modeling Using Aspen Plus

Introduction to Solids Modeling

  • Recognize the importance of solids modeling in industry
  • Understand the differences between modeling solids and fluids
  • Review applications of Aspen Plus solids unit operations
  • Demonstrate how to access literature on processes with solids in Process Manual from Aspen Plus

Solids Components
  • Review the types of solid components in Aspen Plus
  • Recognize the required physical properties for modeling Conventional Inert and Non-Conventional solids
  • Explore property model options for solids
  • Recognize if required properties are available in databanks
  • Demonstrate how to enter non-conventional solid components (like wood pulp and coal) in simulation
  • Workshop: Enter solid components and determine available properties for a solids process flowsheet

Solids Streams
  • Identify and explain the concept of stream classes in Aspen Plus
  • Discuss how stream classes are used to carry solids attributes
  • Identify how to account for moisture in solids
  • Demonstrate how to create stream classes and apply to a flowsheet section
  • Workshop: Assign stream classes to flowsheet sections of a solids dryer flowsheet

Particle Size Distribution (PSD)
  • Discuss how to track PSD and average particle sizes
  • Create PSD Meshes and use PSD functions
  • View PSD graphically with plots
  • View additional PSD values using Property Sets
  • Workshop: Create a PSD mesh and use a PSD function to define a PSD for a urea granulation flowsheet and individual stream

Solids Unit Operation Models Overview
  • Differentiate between Simulation and Design modes
  • Discuss use of rigorous versus short-cut calculation methods within each unit operation
  • Review the different unit operation models available for solids modeling
  • Demonstrate a Screen application using multiple solid substreams
  • Workshop: Explore unit operation model modes (Simulation vs Design) and methods (Rigorous vs Conceptual) using a Cyclone model

Urea Process Model
  • Review a Urea overall process
  • Discuss the unit operations used to model the granulation process
  • Workshop: Create and run a simple urea granulation process flowsheet containing a granulator, screen and crusher unit operations

Results Characterization and Optimization
  • Review stream and block results for solids processes in Aspen Plus
  • Graphically review results using PSD and Separation Efficiency plots
  • Enhance results using Custom Tables to view key operating parameters
  • Workshop: Explore and enhance the results of the urea granulation process flowsheet created in the previous module. Use Sensitivity Analysis to minimize recycle solids flow.

Drying Process Models
  • Discuss modeling of dryer and dryer model types in Aspen Plus
  • Understand how to generate a normalized drying curve
  • Discuss belt dryer and fluidized bed dryer operations.
  • Demonstrate modeling of multi-stage Belt dryer
  • Demonstrate modeling of multi-stage fluidized bed dryer
  • Workshop: ┬áComplete and run a single-stage Belt Dryer Process model
  • Workshop: Complete and run a single-stage Fluidized Bed Dryer Process model

Solids Reactors
  • Explain how to simulate reactions involving solids using RSTOIC, RYIELD, RCSTR and RGIBBS models
  • Learn how to specify reactor product particle size distribution (PSD)
  • Workshop: Setup a model for the synthesis of ammonium phosphate for fertilizer production

Fluid Bed Reactor Process Model
  • Discuss the Fluid Bed solids unit operation model
  • Demonstrate how to add reactions to the Fluid Bed model
  • Workshop: Complete and run a Fluid Bed Reactor Process workshop

Pneumatic Conveying
  • Classify the pneumatic conveying processes and modes, for modeling in Aspen Plus
  • Explore the details of using pipe and pipeline unit operations for pneumatic conveying modeling
  • Demonstrate modeling of a Pneumatic Conveying process
  • Demonstrate accessing literature on pneumatic conveying in Process Manual from Aspen Plus help menu

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.