Madhurig: Created page with "'''Title: Plug Flow Reactor''' '''Author: Priyam Nayak''' '''Keywords: '''DWSIM''', '''Material stream, simulation, compounds, thermodynamic package, unit systems, plug flow..."

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Created page with "'''Title: Plug Flow Reactor''' '''Author: Priyam Nayak''' '''Keywords: '''DWSIM''', '''Material stream, simulation, compounds, thermodynamic package, unit systems, plug flow..."

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'''Title: Plug Flow Reactor'''

'''Author: Priyam Nayak'''

'''Keywords: '''DWSIM''', '''Material stream, simulation, compounds, thermodynamic package, unit systems, plug flow reactor, kinetic reaction, stoichiometry, reaction order

{| border=1

|| Visual Cue
|| Narration
|-
|| '''Slide Number 1'''

'''Title Slide'''
|| Welcome to this spoken tutorial on Simulating a '''Plug Flow Reactor(PFR)''' in '''DWSIM'''.
|-
|| '''Slide Number 2'''

'''Learning Objective'''
|| In this tutorial, we will learn to:
* Simulate a '''Plug Flow Reactor (PFR)'''
* Calculate '''Conversion''' and '''Residence time''' for a reaction in a '''PFR'''.

|-
|| '''Slide Number 3'''

'''System Requirements'''

To record this tutorial, I am using
* '''DWSIM 9.0.4 '''and
* '''Windows 11'''

The process demonstrated in this tutorial is identical in other OS also, such as-
* Linux,
* Mac OS X or
* FOSSEE OS on ARM.

|| This tutorial, recorded using the following setup.

The process demonstrated in this tutorial is identical in other OS as well.

|-
|| '''Slide Number 4'''

'''Pre-requisites'''

To practice this tutorial, you should know to
* Add components to a '''flowsheet.'''

* Select '''thermodynamic''' packages
* Specify the properties of a '''material stream'''
* Define a '''Kinetic Reaction'''

|| To practice this tutorial, you should know the following.

|-
|| '''Slide Number 5'''

'''Problem Statement'''

|| We will develop a '''flowsheet '''to determine the '''exit composition''' from an Adiabatic '''PFR.'''

Here we give '''reaction, property package''' and '''inlet stream conditions'''.
|-
|| '''Slide Number 6'''

'''Reaction Kinetics'''

|| Next, we give the reaction kinetics.

|-
|| '''Slide Number 7'''

'''Code Files'''
|| '''kinetic-reaction''' file used in the tutorial is provided as a''' Code file''' on this tutorial page.

Download this file from''' Code Files''' link.1.14
|-
|| Switch to '''DWSIM'''.
|| I have already opened '''DWSIM''' on my machine.
|-
|| Show '''DWSIM''' window

''' File >> Save As >> PFR'''
|| I have opened the file '''kinetic-reaction.dwxml'''.

Let me save it as '''PFR'''.

We can see that the file name has changed now to '''PFR'''.
|-
||
|| Let us verify if the rate kinetics exist in the opened '''DWSIM''' file.
|-
|| Highlight '''Settings''' in toolbar area

Click '''Settings'''
|| Click on the '''Settings''' button in the toolbar.

'''Settings''' window opens.
|-
|| Click on '''Reactions''' tab
|| Go to the '''Reactions''' tab.
|-
|| '''Chemical Reactions''' >> Click '''Butane Isomerization'''
|| Click on the reaction named “'''Butane Isomerization'''” under the''' Chemical Reactions''' section.
|-
|| Close the '''Add Kinetic Reaction''' window

Close the '''Settings''' window
|| We can see that the reaction is added with the given kinetic parameters.

Close the '''Add Kinetic Reaction''' window

Close the '''Settings''' window
|-
|| Point to '''Object Palette'''

Click on '''Reactors''' section.

Scroll below to find the '''Plug Flow Reactor(PFR).'''

Click and drag '''Plug Flow Reactor(PFR)''' to the flowsheet

Click on '''Double Arrow''' next to '''Object Palette'''
|| Now let us add a '''PFR'''.

Go to the '''Reactors''' section in the '''Object Palette''' located at the right side of the flowsheet window.

Scroll below to find '''Plug Flow Reactor(PFR).'''

Drag and drop to the flowsheet.

Minimize the '''Object Palette''' by clicking on this '''Double Arrow'''.
|-
|| Point to '''PFR''' added to the flowsheet
|| This is the Plug Flow Reactor.

It has 2 material streams and 1 energy stream auto-connected to its connection ports.

Material Stream named '''1''' enters the PFR as feed.

Material Stream named '''2''' leaves the PFR as a product.
|-
|| Click >> 1 >> 1 (Material Stream) Property Editor Window

Type '''Feed >> Enter'''
|| Now click on the Material Stream named '''1'''.

1 (Material Stream) property editor window opens.

Let’s change its name to '''Feed.'''

Press '''Enter'''.
|-
||
|| Now we will specify the '''Feed stream '''properties.
|-
|| '''Input Data>> Flash Spec>> Temperature''' '''and Pressure(TP)'''
|| Under '''Input Data''', in '''Stream Conditions''' section, select '''Flash Spec''' as '''Temperature and Pressure (TP).'''

'''Temperature and Pressure '''is selected as '''Flash Spec '''by default.

So let’s not change it.
|-
|| '''Input Data >> Temperature >> 57 C'''

'''Press Enter'''
|| Change '''Temperature''' to '''57 degree C''' and press '''Enter'''.
|-
|| '''Input Data >> Pressure >> 20 bar'''

'''Press Enter'''
|| Change '''Pressure''' to '''20''' '''bar''' and press '''Enter'''.
|-
|| '''Input Data >> Molar Flow >> 163 kmol/h'''

'''Press Enter'''
|| Change '''Molar Flow''' to '''163 kmol/h''' and press '''Enter'''.

|-
||
|| Now let us specify the '''feed stream compositions'''.
|-
|| '''Composition >> Basis >> Mole Fractions'''
|| Under '''Compound Amounts''', choose the '''Basis''' as '''Mole Fractions''', if not selected.

'''Mole Fractions''' is selected as '''Basis '''by default.
|-
|| '''N-butane: 0.9'''

'''Isobutane: 0'''

'''Isopentane: 0.1'''
|| Now for '''N-butane''',''' '''enter the '''Amount''' as '''0.9 '''and press '''Enter.'''

Similarly, for '''Isobutane, '''enter it as '''0 '''and press '''Enter.'''

For '''Isopentane, '''enter''' 0.1 '''and press '''Enter'''.
|-
|| '''Click >> Accept'''
|| Click on '''Accept''' to accept the changes
|-
|| '''Point to 2 (Material Stream)'''
|| Click on '''Material Stream''' named '''2'''
|-
|| Click >> 2 >> 2 (Material Stream) Property Editor Window

Type '''Product >> Enter'''
|| Let’s change its name to '''Product.'''

Press '''Enter'''.
|-
|| Point to '''PFR-1'''
|| Now we will add PFR parameters.

Click on '''PFR-1.'''

'''PFR-1 '''property editor window opens.
|-
|| Hover mouse at '''Calculation Parameters'''
|| Now go to the next section, '''Calculation Parameters.'''
|-
|| '''Reaction Set''' >> '''Default Set'''
|| Here, the first option is '''Reaction Set.'''

By default, it is '''Default Set'''.

Since we have only one '''reaction''', we leave it as it is.
|-
|| Point to '''Calculation Mode'''

'''Calculation Mode >> Adiabatic'''
|| Next, click on the drop-down against''' Calculation Mode.'''

Select '''Adiabatic.'''
|-
|| Click on '''Dimensions''' tab
|| Click on the '''Dimensions''' tab beside the''' General''' tab.

Here we will provide the dimensions of the '''PFR'''.
|-
|| '''Reactive Volume''' >>''' 2.6 m3'''

Press '''Enter'''
|| Click on the field against '''Reactor Volume''' and enter 2.6''' m<sup>3.'''</sup>

Then press '''Enter.'''
|-
|| Point to '''Sizing Information'''
|| In '''Sizing information''', you can either select length or diameter of the PFR.

As the length of PFR is provided to us, we will select the radio button against '''Length.'''
|-
|| '''Tube Length''' >> '''3 m'''

Press '''Enter'''
|| Click on the field against '''Tube Length''' and enter 3 m.<sup>'''.'''</sup>

Then press '''Enter.'''
|-
|| Point to '''Tube Diameter'''
|| We can see that based on the length entered, the diameter is calculated.
|-
|| Point to '''Number of Tubes'''
|| In case the '''PFR '''is multitubular, we can enter the number of tubes here.

Since no such information is provided, we will leave it with the default value.
|-
|| Click''' Solve'''
|| This completes the problem specification.

Click on '''Solve''' button in the toolbar area.
|-
|| Point to '''Messages''' at the bottom
|| Once the calculations are complete, we will receive a message “The flowsheet calculated successfully”.
|-
|| Hover mouse at '''Results'''
|| From the '''Property Editor Window''' of '''PFR''' locate '''Results''' section.
|-
|| '''Results''' >>''' General'''
|| Under the '''General''' tab, check '''Residence time.'''

It is '''0.144974 h.'''
|-
|| '''Results '''>>''' Conversions'''
|| Under the '''Conversions''' tab, check conversion for the reacting compound.

Conversion of '''N-butane''' is 69.2%
|-
|| '''Insert '''>> '''Master Property Table'''
|| Now we will check the material balances.

Go to '''Insert''' menu and select the '''Master Property Table'''.
|-
|| Double click on '''Master Property Table'''

Point to '''Configure Master Property Table'''
|| Double click on the '''Master Property Table '''to edit it.

'''Configure Master Property Table''' window opens.
|-
|| Type '''Results - Plug Flow Reactor'''
|| Enter''' Name''' as '''Results - Plug Flow Reactor'''
|-
|| '''Type Material Stream'''
|| Enter '''Object Type''' as '''Material Stream'''.

By default, '''Material Stream''' is already selected.

So we will not change it.
|-
|| '''Object >> Feed and Product'''
|| Under '''Properties to display''', select '''Object '''as '''Feed''' and '''Product.'''
|-
|| '''Configure Master Property Table>> Property'''
|| Under '''Property''', scroll down to see all the parameters.

Now select the properties as:

'''Temperature'''

'''Pressure'''

'''Mass Flow'''

'''Molar Flow'''

'''Molar Flow (Mixture) / N-butane'''

'''Mass Flow (Mixture) / N-butane'''

'''Molar Flow (Mixture) / Isobutane'''

'''Mass Flow (Mixture) / Isobutane'''

'''Molar Flow (Mixture) / Isopentane'''

'''Mass Flow (Mixture) / Isopentane'''
|-
||
|| Close this window.

Move the '''Master Property Table '''for better visibility.

Here we can see the corresponding results for '''Product''' and''' Feed.'''
|-
|| '''Slide Number 8'''

'''Summary'''

In this tutorial, we have learnt to
* Simulate a '''Plug-Flow Reactor (PFR)'''
* Calculate '''Conversion''' and '''Residence time''' for a '''reaction''' in a '''PFR'''

|| Let us summarize.
|-

|| '''Slide Number 9'''

'''Assignment'''

|| As an assignment,

Repeat this simulation with different '''compounds''' and '''thermodynamics'''.

Different '''feed conditions'''

Different '''PFR dimensions''' and '''reaction kinetics'''

|-
|| '''Slide Number 10'''

'''DWSIM Flowsheeting Project'''
|| We invite you to participate in '''DWSIM Flowsheeting Project'''.
|-
|| '''Slide Number 11'''

'''Lab Migration Project'''
|| We invite you to migrate commercial '''simulator labs''' to '''DWSIM.'''
|-
|| '''Slide Number 12'''

'''Acknowledgements'''
|| The '''FOSSEE''' project is funded by '''NMEICT, Ministry of Education(MoE)''', Government of India.
|-
|| '''Slide Number 13'''

'''Thanks'''
|| We thank the '''DWSIM''' team for making it as an''' open source software.'''

Thank you for joining.
|-
|}

Process-Simulation-using-DWSIM/C2/Plug-Flow-Reactor/English - Revision history

Madhurig: Created page with "'''Title: Plug Flow Reactor''' '''Author: Priyam Nayak''' '''Keywords: '''DWSIM''', '''Material stream, simulation, compounds, thermodynamic package, unit systems, plug flow..."