ASPEN HYSYS TUTORIAL PROCESS DEVELOPMENT ENGINEERING 7 TH SEMESTER
ASPEN HYSYS TUTORIAL
PROCESS DEVELOPMENT ENGINEERING
7TH SEMESTER
BEFORE THE SIMULATION
• Create a list of components
• Select an appropriate thermodynamic model
Start a new simulation by
clicking on “New Case”
MODIFY UNIT SETS
Select Tools>Preferences
In the menu toolbar
You can also define
independently units for a
specific variable
You can change the
number of decimal points
in the “Formats” tab
PREPARING THE PFD
✓Insert appropriate streams (mass or energy)
PREPARING THE PFD
✓Insert appropriate streams (mass or energy)
Heater Valve Pump Mixer Heat Exchanger
✓Insert appropriate units
PREPARING THE PFD
✓Insert appropriate streams (mass or energy)
Pump
Separator (flash)
Distillation Column
Absorber Column
✓Insert appropriate units
✓Insert appropriate conditions
PREPARING THE PFD
✓Insert appropriate streams (mass or energy)
Heater Valve
✓Insert appropriate units
• Temperature• Pressure• Flow• Degrees of Freedom
Define the components
from HYSYS databanks
Define an appropriate
thermodynamic model to
calculate the fluid properties
You can define hypothetical
components from correlations
by defining specific properties,
eg. Tb, MW
Click “Add” to insert the
thermodynamic model
✓ The selection of the model depends on the specific process.
✓ If in doubt, you can consult “Methods Assistant”
Selection of
assumptions
Modify
Interaction
Parameters
OBJECT PALETTE
Material Stream Energy Stream
Separator Compressor
Heater
Expander
Heat Exchanger
Pump
Valve Mixer
Distillation Column
Absorber Column
AdjustRecycle
Set
Spreadsheet
MATERIAL STREAMS
ADD STREAMS AND UNITS
From menu “Flowsheet” in the toolbar select “Add stream” or “Add operation”
From the “Tools” menu in the toolbar, select “Workbook”
Using the Object Palette
Alternatively, you can use F11 (to add stream) and F12 (to insert operation).
MATERIAL STREAM - DEFINITIONS
Double Click on the selected stream
MATERIAL STREAM - DEFINITIONS
Define conditions by typing in <empty>
Yellow color indicates undefined variables!
Click on “Composition” tab to define composition
MATERIAL STREAM - DEFINITIONS
Click on “Composition” tab to define composition
Define compositions by typing in <empty>
You can select the input and output type of composition by selecting the tab “Basis”
MATERIAL STREAM - DEFINITIONS
Click on “Composition” tab to define composition
Define compositions by typing in <empty>
You can select the input and output type of composition by selecting the tab “Basis”
When all required input is complete the bar turns green
Blue color indicates values defined by user,Black calculated from the models
MATERIAL STREAM - PROPERTIES
You can add more properties by clicking
on the + button
MATERIAL STREAM - PROPERTIES
You can add more properties by clicking
on the + button
MATERIAL STREAM - PROPERTIES
You can add more properties by clicking
on the + button
You can select the kind of property you want to add depending on the use of interest, eg. Gas
MATERIAL STREAM - PROPERTIES
You can add more properties by clicking
on the + button
A list of available properties appears. You
can add a specific property by selecting it and then click on the
Apply button
MATERIAL STREAM - PROPERTIES
You can add more properties by clicking
on the + button
The property is now added
MATERIAL STREAM - UTILITIES
Click on the attachments tab
Click on the “Utilities” tab
MATERIAL STREAM - UTILITIES
Click on the attachments tab
Click on the “Utilities” tab
Click on the “Create…” button to insert “Envelope” utility
AUXILLIARY UNITS
HEAT EXCHANGER
Heat Exchanger
HEAT EXCHANGER
Heat Exchanger
From menu “Connections” define the streams exchanging energy
You can change the thermodynamic package independently for this unit
Shell
sideTube
side
HEAT EXCHANGER
Heat Exchanger
From menu “Connections” define the streams exchanging energy
You can change the thermodynamic package independently for this unit
Shell
sideTube
side
Click on the “Parameters” tab to define pressure drop and exchanger typeYou can define different pressure drop
for shell and tube side
Click on the “Performance” tab to find the simulation results
HEAT EXCHANGER
Heat Exchanger
From menu “Connections” define the streams exchanging energy
You can change the thermodynamic package independently for this unit
Shell
sideTube
side
Click on the “Parameters” tab to define pressure drop and exchanger type
You can define different pressure drop for shell and tube side
HEAT EXCHANGER
Heat Exchanger
From menu “Connections” define the streams exchanging energy
You can change the thermodynamic package independently for this unit
Shell
sideTube
side
Click on the “Parameters” tab to define pressure drop and exchanger typeYou can define different pressure drop
for shell and tube side
Click on the “Performance” tab to find the simulation results
HEATER/COOLER
Heater
HEATER/COOLER
Undefined product streams!
You can select a different model for part of the simulation
HEATER/COOLER
Unknown heat duty or undefined temperature of stream 2
SEPARATOR
You can add optional energy stream
Define T, P
VALVES
Pressure drop or pressure of outlet stream 2 must be defined
EXPANDER
An energy stream must be defined
EXPANDER
An energy stream must be defined
Define efficiency
COMPRESSOR
Define connections, energy stream and fluid package
MIXER
Insert inlet streams
Insert outlet streams
MIXER
Insert inlet streams
Insert outlet streamsYou can determine the
pressure assignment
PUMPS
You can either determine the pump
duty or the pressure of the outlet stream S8
PUMPS
You can either determine the pump
duty or the pressure of the outlet stream S8
Define pump adiabatic efficiency
LOGICAL OPERATORS
ADJUST
On the “select var..” tab choose manipulated variable
ADJUST
On the “select var..” tab choose manipulated variable
Define object
ADJUST
On the “select var..” tab choose object variable
ADJUST
On the “select var..” tab choose manipulated variable
Define object
On the “select var..” tab choose object variable
Specify target variable value
You can adjust several parameters, such as method,
tolerance, step size…
You can adjust the number of iterations
SET
Define object variable
SET
Define object variable
Define source
SET
Define source
SET
Define object variable
Define source
RECYCLE
On the parameters tab
RECYCLE
On the parameters tab
Define sensitivity
RECYCLE
On the parameters tab
Define sensitivity
You can adjust the number of iterations
SPREADSHEET
Double click on the spreadsheet icon to open spreadsheet window
SPREADSHEET
Click on “Add import” to specify
input variable, e.g. component
mass flow
SPREADSHEET
Click on “Add import” to specify
input variable, e.g. component
mass flow
Select the appropriate stream
and variable, depending on
the task in hand
SPREADSHEET
Click on “Add import” to specify
input variable, e.g. component
mass flow
After the definition of the import variables,
go to the spreadsheet tab
Define the appropriate formula between
input and output cells!
SPREADSHEET
Click on “Add import” to specify
input variable, e.g. component
mass flow The calculated result is
displayed in red color
SPREADSHEET
Click on “Add import” to specify
input variable, e.g. component
mass flow
After the definition of the import variables,
go to the spreadsheet tab
The calculated result is
displayed in red color
Get back to “Connections” tab, to define
which variable has been calculated by
clicking on “Add Export..”
SPREADSHEET
Double click on the spreadsheet icon to open spreadsheet window
Click on “Add import” to specify
input variable, e.g. component
mass flow
Select the appropriate stream
and variable, depending on
the task in hand
After the definition of the import variables,
go to the spreadsheet tab
Define the appropriate formula between
input and output cells!
The calculated result is
displayed in red color
Get back to “Connections” tab, to define
which variable has been calculated by
clicking on “Add Export..”
SPREADSHEET
Click on “Add import” to specify
input variable, e.g. component
mass flow
DISTILLATION DESIGN
DISTILLATION DESIGN (1/7)
By double clicking on the column the following wizard appears
DISTILLATION DESIGN (1/7)
Insert number of stages
DISTILLATION DESIGN (1/7)
Select on or more feed stages by drag and drop existing streams or defining new ones
Select condenser type
Insert energy streams
Insert outlet streams
You can also define (optionally) more
outlet streamsWhen all parameters are defined,
click on the “Next” button
DISTILLATION DESIGN (1/7)
Insert number of stages
Select on or more feed stages by drag and drop existing streams or defining new ones
Select condenser typeInsert energy
streams
You can also define (optionally) more
outlet streams
Reboiler configuration
DISTILLATION DESIGN (1/7)
Insert number of stages
Select on or more feed stages by drag and drop existing streams or defining new ones
Select condenser typeInsert energy
streams
You can also define (optionally) more
outlet streams
By double clicking on the column the following wizard appears
When all parameters are defined, click on the “Next” button
Reboiler configuration
Define condenser and Reboiler pressure
If needed, define pressure drop in
condenser and reboiler
DISTILLATION DESIGN (1/7)
Insert number of stages
Select on or more feed stages by drag and drop existing streams or defining new ones
Select condenser typeInsert energy
streamsInsert outlet
streams
You can also define (optionally) more
outlet streams
By double clicking on the column the following wizard appears
When all parameters are defined, click on the “Next” button
Reboiler configuration
Define condenser and Reboiler pressure
If needed, define pressure drop in
condenser and reboiler
You can give optional initial estimates for the
temperature to help convergence
DISTILLATION DESIGN (1/7)
Insert number of stages
Select on or more feed stages by drag and drop existing streams or defining new ones
Select condenser typeInsert energy
streamsInsert outlet
streams
You can also define (optionally) more
outlet streams
By double clicking on the column the following wizard appears
When all parameters are defined, click on the “Next” button
Reboiler configuration
Define condenser and Reboiler pressure
If needed, define pressure drop in
condenser and reboiler
You can give optional initial estimates for the
temperature to help convergence
Depending on the process, you
can define reflux ratio or side
ops
The input procedure is completed by clicking on
“Done..” button
DISTILLATION DESIGN (2/7)
You can change feed stage and number of stages depending on the problem at hand.
In order to be able to Run the column
and to obtain convergence, some
specifications must be defined.
DISTILLATION DESIGN (3/7)
You can define specification value
by selecting the “View” button, or by
manually changing the value
DISTILLATION DESIGN (4/7)
Depending on the defined
specs, the degrees of
freedom are calculated
You can add or remove
specification depending on
the problem
DISTILLATION DESIGN (5/7)Attention!!!
Solver must be
active
To start the calculations and solve the case,
click on “Run” button
If the status remains
“unconverged”
(with solver active),
Go to “Parameters” tab
DISTILLATION DESIGN (6/7)
Depending on the problem, you can
change the solving method,
tolerance, number of iterations, to
obtain convergence.
When the status gets to “Converged” you can
check the calculation results
DISTILLATION DESIGN (6/7)
Depending on the problem, you can
change the solving method,
tolerance, number of iterations, to
obtain convergence.
When the status gets to “Converged” you can
check the calculation results
DISTILLATION DESIGN (7/7)
To recalculate, eg by changing number of stages, we click on the “Reset”
button, do the required changes (e.g. stage number) and then click on “Run”,
after changing the solver to “Active”.
GENERAL
After the solution, the material streams get a dark color and the units a
black contour.
Yellow color indicates unsolved unit operation, or missing input parameters
ABSORBER
ABSORBER DESIGN (1/2)
Top and bottom inlets must be defined
Number of stages or packing characteristics must be defined
ABSORBER DESIGN (1/2)
Top and bottom outlets must be defined
ABSORBER DESIGN (2/2)
Define top and bottom stage pressure
On the next step, you can add optional
temperature estimates.
Don’t forget to click on the “Run” button
GOOD LUCK!