Episode 51 : Integrated Process Simulation
Why Integration ?
* Consider aspects of control, environmental impact, energy, etc., early during process design
* Prevent potential problems rather than cure (which may not be possible)
SAJJAD KHUDHUR ABBAS
Ceo , Founder & Head of SHacademy
Chemical Engineering , Al-Muthanna University, Iraq
Oil & Gas Safety and Health Professional – OSHACADEMY
Trainer of Trainers (TOT) - Canadian Center of Human
Development
Online resume builder management system project report.pdf
Episode 51 : Integrated Process Simulation
1. SAJJAD KHUDHUR ABBAS
Ceo , Founder & Head of SHacademy
Chemical Engineering , Al-Muthanna University, Iraq
Oil & Gas Safety and Health Professional – OSHACADEMY
Trainer of Trainers (TOT) - Canadian Center of Human
Development
Episode 51 : Integrated
Process Simulation
2. Integration: Introduction
Why Integration ?
* Consider aspects of control,
environmental impact, energy, etc., early
during process design
* Prevent potential problems rather than
cure (which may not be possible)
4. Difference Between Process & Tools Integration
Tools Integration
* Combines tools/algorithms in order to
determine optimal conditions of operation
& design subject to constraints
Process Integration
Links more than one operation and/or
equipment together in order to achieve an
integrated condition of operation & design
5. Difference Between Process & Tools Integration
Example: Heat Integration
Tools Integration- Determine the
heating/cooling demands and the
optimal distribution
Process Integration - Supply the
individual heating/cooling demands
based on optimal network (connection)
6. Tools Integration: Example
Integrated synthesis, design and control: Separation
of an azeotropic mixture
Solve the following steps in an integrated manner
* Mixture analysis
* Use solvents or external agents ?
*Analyze phase boundaries and distillation
boundaries
* Configure/design the separation sequence
* Validate separation by simulation
* Design & verify process operation/control
7. Tools Integration: Example
Optimal design and control of a process: Determine
energy efficient and “clean” condition of operation
Solve the following steps in an integrated manner
* Process (flowsheet) analysis (control,
environmental impact, energy used)
* Solvents or external agents used?
* Define feasibility (control, energy,
environment) regions
*Reconfigure/design the process flowsheet
*Validate process operation by simulation
(open-loop and closed-loop)
8. Tools Integration : Requirements
No recycle of information flow - Integration possible ?
problem 1 problem 2
Recycle of information flow - Integration possible ?
problem 1 problem 2
Direction of Information flow
9. Tools Integration: General Framework
Outline
* Basis for integration
* Integration of synthesis, design & operation
* Tools needed (models, properties, algorithms
(synthesis, design, ..), simulation engine, etc.)
* Integration approach
* Aspects of models-properties
10. Tools Integration: Basis for Integration
* What are common (information) between
various problems (tools) to be integrated ?
* Can the same tools supply the common
information ?
* How can various tools share the common
information ?
11. Tools Integration: Basis for Integration
design control
synthesis
To consider aspects of synthesis, design and control
simultaneously, it is necessary to determine what is
“common” information to the three problems.
Intensive variables such as T, P, x are “common”
but have different “functions”
12. Tools Integration: Basis for Integration
To consider aspects of synthesis, design and
control simultaneously, it is necessary to
determine what is “common” information to
the three problems.
Intensive variables such as T, P, x are
“common” but have different “functions”
Stream Summary
from
Simulation Engine
design control
synthesis
13. Functions of Intensive Variables T, P, x
Synthesis: Determine effects of T, P, x on the process
model (properties) to generate the process
flowsheet/configuration
Design: Determine T, P, x such that the process
satisfies the specified objectives
Control: Determine the sensitivities of T, P, x in
order to design the control system
Energy: Determine H(T, P, x) to compute the energy
requirements
Environmental Impact: Identify environmental
problems through x
Economy: Cost of operation, equipment are
functions of T, P, x
14. INTEGRATION OF TOOLS/METHODS
Intensive variables
T, P, x
Extensive variables
& properties
Process Models
(constraints)
Problems
(synthesis, design, control, analysis)
17. Extractive separation of azeotropic mixtures:
Separation of acetone-chloroform
Problem Definition: Determine Optimal Flowshet
* Define Optimal (energy, environment, operation)
* VLE-phase diagram & azeotrope verification
* Selection of extractive agent
* Configuration of extractive distillation system
* Evaluation of alternatives (by simulation)
* Determine optimal flowsheet
Level 1
Levels
2 …N
18. A Hierarchical Approach: Problem Decomposition
Level 1
Level 2
Level 3
Level N
Each level solves an integrated problem. Complexity of problem increases with
19. Computer Aided Process Engineering - Lecture 5 (R. Gani) 19
SIMULATION ENGINE
MANAGER
AE / ODE / DAE
PDE
LP / NLP
MILP / MINLP
Solver Library
Rigorous
Linear
Regression
Model Analysis
Flowsheet
Components / Reactions
Measure units
Constitutive models
What to solve
Method of solution
Set/initialize variables
Output (detail/form)
PROBLEM DEFINITIONADD TO THE SYSTEM TOOLBOX
DATABANKS
LIBRARIES
Models
(Model development)
Components
(Property prediction)
Reactions
Process synthesis/equipment design/control
Utilities (model selection, properties)
INFORMATION
STORRAGE
Agents (solvent design/selection)
Analysis & assessment
Model Equations
Model equations
Model equations
Constitutive relations
Model Adaptation
Rigorous
Linear
Regression
RHS