Aspen Plus: Real Time Modeling and Optimization

Learn how to do real time optimization using the Equation Oriented (EO) strategy and how to tune models using real-time data and parameter estimation and data reconciliation. Learn to solve large flowsheets quickly using the EO approach. Increase confidence in the plant measurements using parameter estimation and data reconciliation.


  • Simulation engineers involved in design and/or in real-time optimization
  • Engineers currently using earlier versions of Aspen Plus and migrating to version V8.0
  • Process engineers, Process managers, Control engineers and System integrators

Training Details

  • Course Id:


  • Duration:

    4 day(s)

  • CEUs Awarded:


  • Level:



  • Improve plant performance by learning to set up optimization problems in Aspen Plus and solve these models to determine the optimum conditions in "offline mode"
  • Improve productivity by the ability to solve large flowsheets quickly using the Equation Oriented (EO) approach
  • Increase confidence in the plant measurements by the ability to set up parameter estimation and data reconciliation problems
  • Implement Online Optimization projects efficiently using Aspen OnLine
  • Learn “Best Practices” for building and maintaining RTO projects
  • Enhance business value of your software by understanding and utilizing appropriate features


  • Instruction on basic and advanced topics presented by an instructor with a wealth of experience in Aspen Plus Optimization solutions
  • Instructor-guided demonstrations of features within Aspen Plus to show how to build procedures and configure flowsheets
  • Hands-on workshops that apply learned concepts
  • Detailed course notes


  • Must have attended EAP101 Aspen Plus: Process Modeling training course if new to AspenTech modeling/simulation products
  • Basic understanding of optimization concepts is necessary

Subsequent Courses

APC101 Introduction to Advanced Process Control
APC240 Advanced Process Control Application Development and Online Deployment


  • Introduce Real Time Optimization using Aspen Plus V8.0

Closed-Form vs. Open-Form Models
  • Discuss features of closed form and open form models
  • Describe and contrast different Modeling Strategies
  • Open- and closed-form models
  • Sequential Modular (SM) and Equation Oriented (EO) flow sheeting

Process Simulation with Aspen Plus
  • Explore the Aspen Plus graphical user interface
  • Review the fundamentals of SM simulation
  • Describe the information flow related to flowsheet simulators
  • Review the startup procedure for the Aspen Plus User Interface (APUI)
  • Review the basic menus available in Aspen Plus
  • Workshop #1: to familiarize build and run a SM flowsheet model

EO Workflow
  • Specify EO models, EO options, and variable structure
  • Describe the workflow involved in running an Aspen Plus EO model
  • Describe the EO synchronization process
  • Workshop #2: Demonstrate the use of the Aspen Plus Control Panel for solving a simulation model using both the SM and EO solution strategies

EO Modes and Variables
  • Examine EO Variables form and create queries
  • Identify and explain the four EO solution modes
  • Describe EO variables and their attributes

EO Models
  •  List the supported EO models
  •  Identify and explain the EO Options form in Aspen Plus
  •  Describe the stream structure in Aspen Plus EO
  •  Discuss EO flash usage in Aspen Plus
  •  Review the PetroFrac distillation tower forms in Aspen Plus
  •  Describe the use of the EO APStrm block

EO Variables Form
  •  Describe the EO Variables form
  •  Identify and explain the use of queries
  •  Workshop #3: Work with EO variables, their attributes, and the effect of stream connections on variable specifications

Non-Zero Components, Flowsheet Sections and Component Mapper
  •  Explain the concept of Non-zero components
  •  Define the concept of flowsheet sections
  •  Describe the use of the RYield model for component mapping
  •  Workshop #4: Define components groups for different flowsheet sections and use a component mapper to reduce the component slate for a flowsheet section

Heater Blocks and Specification Groups
  •  Describe the use of the Heater model in Aspen Plus EO
  •  Identify and explain the concept of Specification Groups and the corresponding form in Aspen Plus
  •   Workshop #5: Add a propylene refrigeration system to the existing model and change the specifications of variables using Specification Groups

HXFlux Model and Connections
  •  Define an HXFlux Model and connections to heat integrate a plant mode
  •  Describe the use of the HXFlux model for heat transfer rate calculations
  •  Demonstrate the configuration of EO connections
  •  Workshop #6: Add a HXFlux model and establish a user-defined EO connection

  •  Identify and explain the use of the measurement model
  •  Enter data for a Measurement model
  •  Demonstrate the use of the measurement model and its role in simple parameter estimation
  •  Workshop #7: Add measurements to the flowsheet model, manipulate the measurement model variable specifications, and run a simple parameter estimation

Running PML Models
  •  Use Process Model Library (PML) models for special calculations
  •  Discuss the use of PML models in Aspen Plus flowsheets
  •  Describe the configuration requirements for PML models
  •  Workshop #8: Add PML TrayDP models and connect them to the C2S distillation tower model
  •  Using Hierarchies
  •  Introduce unit operation models used to change pressure, such as Pumps and Compressors, and those which model Identify and explain the use of hierarchy blocks in Aspen Plus
  •  Create Hierarchies to manage large projects
  •  Discuss project execution workflow and the role of hierarchy blocks
  •  Discuss the impact of stream crossing hierarchy boundaries
  •  Show examples of the use of hierarchies
  •  Workshop #9: Become familiar with exporting and working with hierarchies

Parameter Estimation
  •  Discuss the principles of parameter estimation
  •  Demonstrate the impact of accurate parameterization on model behavior
  •  Identify and explain the concept of Meas-Param pairing
  •  Discuss the most common specifications for measurement variables and their role in parameter estimation
  •  Workshop #10:  Configure and perform a typical parameter estimation case run

Data Reconciliation
  •  Contrast data reconciliation with parameter estimation
  •  Set up Data Reconciliation and Parameter Estimation problems to improve the confidence in plant measurements
  •  Define the steps involved in creating a reconciliation problem
  •  Describe the configuration of a least squares objective function for use in reconciliation runs
  •  Workshop #11: Configure and perform data reconciliation

  •  Describe the steps required to create an optimization problem
  •  Show how to define an Objective function in the Aspen Plus GUI
  •  Set up an economic objective function and solve an Optimization case to maximize plant profit
  •  Workshop #12: Define an economic objective function for the model and use it to perform optimization in the EO solution strategy

Miscellaneous Topics
  •  Discuss miscellaneous topics, including:
  •  Importing and exporting EO variables
  •  Including and excluding blocks
  •  Sensitivity analysis
  •  Options for adding user calculations
  •  OOMF Scripting language
  •  Script files (.EBS files)

Aspen OnLine: Overview
  •  Learn the workflow for online implementation of real-time optimization projects using Aspen OnLine
  •  Provide an introduction to the Aspen OnLine software
  •  Describe the use of the Aspen OnLine Project Manager application
  •  Describe the steps for preparing your model for execution under Aspen OnLine
  •  Workshop #13: Create an Aspen OnLine Project and prepare a model for use under Aspen OnLine

Aspen OnLine: The Client GUI
  •  Become familiar with the Aspen OnLine graphical user interface
  •  Describe the use of the Aspen OnLine Client GUI for RTO models
  •  Discuss the use of the Aspen Online Control Panel form and the Data Browser forms
  •  Discuss the configuration of tags and connecting them to EO model variables
  •  Workshop #14: Configure a model with input and output tags, and schedule and run a Parameter Estimation case under Aspen OnLine
  •  Aspen OnLine: Optimization and Setpoint Implementation
  •  Describe the inputs and outputs for the Optimization case
  •  Describe the inputs and puts for the ramper module
  •  Discuss the Aspen Online GUI forms used to configure them

Aspen OnLine: Steady State Detection
  •  Discuss the configuration of steady state detection and the algorithms available in Aspen OnLine
  •  Aspen OnLine: Generic Validity Checking
  •  Discuss the features that are available for validity checking for the parameter estimation case in Aspen OnLine
  •  Discuss the features availability for validity checking for the Optimization case in Aspen OnLine
  •  Discuss the solution implementation module for sending optimized targets out to the Advanced Control system (Ramper module)
  •  Workshop #15: Configure AOL to run an Optimization case on the C2S column using the Optimization case validity checking routine

Aspen OnLine: Case History
  •  Discuss the importing and exporting of configuration information into Aspen OnLine from text files
  •  Discuss the configuration of the case history system that is embedded in the Aspen OnLine software
  •  Workshop #16: Use a case history directory to repeat an online case execution 

Register for a Class

Date Class Type Location Price Language
Date(s): 11/8/2021 - 11/11/2021 Type: Public Virtual Location: Virtual-Americas Price: (USD) 2800.00 Language: English Register
Date(s): 11/15/2021 - 11/18/2021 Type: Public Virtual Location: Virtual-Americas Price: (USD) 2800.00 Language: English Register
Date(s): 11/29/2021 - 12/2/2021 Type: Public Virtual Location: Virtual-Latin America Price: (USD) 1600.00 Language: Spanish Register
Date(s): 12/7/2021 - 12/10/2021 Type: Public Virtual Location: Virtual-India Price: (INR) 84000.00 Language: English Register
Date(s): 02/21/2022 - 02/24/2022 Type: Public Virtual Location: Virtual-Americas Price: (USD) 2800.00 Language: English Register
Date(s): 05/20/2022 - 05/23/2022 Type: Public Virtual Location: Virtual-Americas Price: (USD) 2800.00 Language: English Register
Date(s): 08/19/2022 - 08/22/2022 Type: Public Virtual Location: Virtual-Americas Price: (USD) 2800.00 Language: English Register
Date(s): 11/21/2022 - 11/24/2022 Type: Public Virtual Location: Virtual-Americas Price: (USD) 2800.00 Language: English Register

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.