PoojaMoolya: Created page with " {|border=1 ||'''Time''' ||'''Narration''' |- ||00:01 ||Welcome to this tutorial on simulating a '''Conversion Reactor '''in '''DWSIM'''. |- ||00:07 ||In this tutorial, we..."

2021-04-30T10:32:34Z

Created page with " {|border=1 ||'''Time''' ||'''Narration''' |- ||00:01 ||Welcome to this tutorial on simulating a '''Conversion Reactor '''in '''DWSIM'''. |- ||00:07 ||In this tutorial, we..."

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{|border=1
||'''Time'''
||'''Narration'''
|-
||00:01
||Welcome to this tutorial on simulating a '''Conversion Reactor '''in '''DWSIM'''.

|-
||00:07
||In this tutorial, we will learn to:

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||00:10
|| Define a '''Conversion Reaction'''

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||00:13
|| Simulate a '''Conversion Reactor'''

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||00:16
|| Calculate '''Conversion percentage '''from '''Conversion function'''

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||00:21
||To record this tutorial, I am using

'''DWSIM 5.2''' '''(Classic UI)''' and '''Windows 10'''

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||00:31
||The process demonstrated in this tutorial is identical in other OS also such as-

'''Linux''', '''Mac OS X''' or '''FOSSEE OS''' on '''ARM'''.

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||00:43
||To practice this tutorial, you should know to-

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||00:47
|| Add components to a '''flowsheet.'''

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||00:50
|| Select '''thermodynamic''' packages.

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||00:53
|| Add '''material''' and '''energy streams''' and specify their properties.
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||00:58
||The prerequisite tutorials are mentioned on our website.

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||01:03
||You can access these tutorials and all the associated files from this site.

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||01:09
||We will develop a '''flowsheet''' to determine the '''exit composition '''from an '''isothermal Conversion Reactor.'''

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||01:17
||Here we give '''Reaction, Property Package '''and '''Inlet Stream Conditions.'''

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||01:23
||Next, we give '''Reaction Parameter''' and '''Reaction Conversion'''.

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||01:28
||I have already opened '''DWSIM''' on my machine.

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||01:33
||Go to '''File''' menu and select '''New Steady-state Simulation.'''

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||01:40
||'''Simulation Configuration Wizard''' window appears.

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||01:44
||At the bottom, click on the '''Next '''button.

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||01:48
||Now, in the '''Compounds Search''' tab, type '''Carbon monoxide.'''

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||01:54
||Select '''Carbon monoxide '''from '''ChemSep '''database.

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||01:58
||Similarly, add '''Hydrogen.'''

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||02:02
||Next, add '''Methanol.'''

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||02:05
||And then at the bottom, click on the '''Next '''button.

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||02:10
||The '''Property Packages '''opens.

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||02:13
||From '''Available Property Packages''' list, double-click on '''Raoult’s Law.'''

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||02:19
||Then click on the '''Next '''button.

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||02:23
||We are moved to a new window named '''Flash Algorithm'''.

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||02:28
||From '''Default Flash Algorithm '''select '''Nested Loops(VLE)'''

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||02:35
||Click on the '''Next '''button.

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||02:38
||The next option is '''System of Units.'''

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||02:42
||Under '''System of Units, '''we will select '''C5'''.

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||02:47
||Then at the bottom, click on the '''Finish '''button.

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||02:52
||Let us now maximize the simulation window.

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||02:56
||Now let’s insert a '''feed stream''' that enters the '''Conversion Reactor'''.

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||03:01
||On the right hand side of the main simulation window, go to '''Flowsheet Objects.'''

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||03:08
||In the '''Filter List '''tab, type '''Material Stream.'''

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||03:13
||From the displayed list, drag and drop a '''Material Stream '''to the '''Flowsheet'''.

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||03:19
||Let’s change the name of this '''stream''' to '''Feed.'''

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|| 03:24
||Now we will specify the '''Feed stream''' properties.

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||03:29
||Go to '''Input Data.'''

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||03:32
||Select '''Flash Spec''' as '''Temperature and Pressure (TP),''' if not already selected.

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||03:38
|| default, '''Temperature '''and''' Pressure '''are already selected as '''Flash Spec.'''
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||03:45
||Change '''Temperature''' to '''320 degree Centigrade''' and press '''Enter.'''

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||03:52
||Change '''Pressure''' to '''70 bar''' and press '''Enter.'''

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||03:58
||Change '''Mass Flow''' to '''1500 kg per hour''' and press '''Enter.'''

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|| 04:04
||Now let us specify the '''feed stream compositions.'''

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||04:09
||Under '''Composition''', choose the '''Basis''' as '''Mole Fractions''', if not already selected.

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||04:18
||By default, '''Mole Fractions''' is already selected as '''Basis.'''

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||04:24
||Now for '''Carbon monoxide''', enter the '''Amount''' as '''0.2''' and press '''Enter.'''

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||04:33
||For '''Hydrogen, '''enter '''0.8''' and press '''Enter'''.

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||04:40
||Similarly, for '''Methanol''', enter '''0''' and press '''Enter'''.

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||04:47
||On the right, click on this green tick to '''Accept Changes.'''

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|| 04:52
||Next, we will define the '''Conversion Reaction.'''

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||04:56
||Under '''Tools''', click on '''Reactions Manager.'''

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||05:02
||'''Chemical Reactions Manager''' window opens.

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||05:06
||Under '''Chemical Reactions''' tab, click on the green coloured '''Add Reaction''' button.

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||05:13
||Then click on '''Conversion.'''

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||05:16
||'''Add New Conversion Reaction''' window opens.

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||05:20
||Under '''Identification''', enter the '''Name''' as '''Methanol Synthesis.'''

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||05:27
||Now let’s enter the '''Description.'''

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||05:31
||“'''Synthesis of Methanol from Carbon monoxide and Hydrogen.”'''

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||05:37
||Next part is a table of '''Components/Stoichiometry.'''

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||05:42
||The first column '''Name''' shows the available components here.

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||05:47
||The second column corresponds to its '''Molar Weight.'''

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||05:51
||The next column is '''Include.'''

Under '''Include''', check all the check-boxes.

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||05:58
||The fourth column is '''BC.'''

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||06:01
||Under '''BC''', check the '''Carbon monoxide''' check box as conversion is defined in terms of '''Carbon monoxide'''.

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||06:10
||Next column is '''Stoichiometric coefficients'''

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||06:14
||Under '''Stoichiometric coefficients''' column, enter: '''-1''' for '''Carbon monoxide''' , '''-2''' for '''Hydrogen''' and '''1''' for '''Methanol'''. Then press '''Enter.'''

|-
||06:29
||In the '''Stoichiometry '''field, we can see it shows '''OK'''.

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||06:34
||So the reaction is balanced after entering the '''stoichiometric''' '''coefficients'''.

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||06:40
||Here the '''Equation''' field shows the '''reaction equation'''.

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||06:45
||Then comes '''Conversion Reactions Parameters.'''

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||06:49
||The '''Base comp''' is already indicated as '''Carbon monoxide.'''

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||06:54
||Select '''Phase''' as '''Vapor.'''

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||06:58
||Now go to '''Conversion.'''

|-
||07:01
||In a '''Conversion Reaction''', conversion can be defined in two ways.

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||07:06
||First, conversion is defined directly as '''percentage (%)'''.

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||07:11
||Suppose, it is provided that reactant undergoes '''50%''' conversion.

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||07:18
||Then we have to enter '''50''' against '''Conversion'''.

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||07:23
||Secondly, conversion can be defined as a '''function''' of temperature.

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||07:29
||As per the problem statement, conversion '''function '''is given as

'''267.45 minus 0.591 into T''' where '''T '''is in degree Celsius.

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||07:45
||But in the '''reaction manager''', it can be seen that '''T''' is in '''Kelvin'''.

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||07:51
||So we will modify the '''function''' and enter the conversion as '''267.45 minus 0.591 into in bracket T minus 273.15'''

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||08:08
||This “'''-273.15” '''is to incorporate the change in temperature from '''Kelvin''' to '''Degree Celsius'''.

|-
||08:17
||At the bottom, Click on '''OK''' button.

And then close the '''Chemical Reactions Manager''' window.

|-
|| 08:25
||Now let us insert a '''Conversion Reactor''' to the '''flowsheet'''.

|-
||08:30
||Go to '''Flowsheet Objects.'''

|-
||08:33
||In the '''Filter List''' tab, type '''Conversion Reactor.'''

Drag and drop it to the '''flowsheet.'''

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|| 08:42
||Let us now arrange it as required.

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||08:47
||And name this '''reactor '''as '''Conversion Reactor.'''

|-
|| 08:51
||Now let’s insert two more '''material streams''' that exit the '''Conversion Reactor.'''

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||08:58
||To do that, let us drag one '''Material Stream '''to the flowsheet.

|-
|| 09:03
||Let us now arrange it.

|-
|| 09:06
||We will leave that '''stream''' as unspecified.

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||09:10
||Then we will change the name of this '''stream '''to '''Vapour Product.'''

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||09:16
||Next, we will insert another '''Material Stream.'''
|-
|| 09:20
||Let us once again arrange it.

|-
|| 09:23
||Leave that '''stream''' as unspecified.

And name this '''stream '''as '''Liquid Product'''

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||09:30
||Next, we will insert one '''Energy Stream.''' And name this '''stream''' as '''Energy.'''

|-
||09:39
||We are now ready to specify the '''Conversion Reactor.'''

So let’s click on it.

|-
|| 09:47
||On the left, we can see a tab displaying properties related to '''Conversion Reactor.'''

|-
||09:54
||Under '''Connections,''' click on the drop-down against '''Inlet Stream.'''

And select '''Feed.'''

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||10:02
||Next, click on the drop-down against '''Outlet Stream 1''' and select '''Vapour Product.'''

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||10:10
||Next, click on the drop-down against '''Outlet Stream 2''' and select '''Liquid Product.'''

|-
||10:18
||Then click on the drop-down against '''Energy Stream''' and select '''Energy.'''

|-
||10:26
||Now go to the next section, '''Calculation Parameters.'''

|-
||10:31
||Here, the first option is '''Reaction Set.'''

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

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||10:37
||Next, click on the drop-down against '''Calculation Mode '''and select '''Isothermic.'''

|-
|| 10:45
||Now we will run the '''simulation.'''

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||10:48
||So, from the toolbar, click on '''Solve Flowsheet''' button.

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||10:53
||When the calculations are completed, click on the '''Conversion Reactor '''in the '''flowsheet'''.

|-
||11:00
||Go to the '''Property Editor Window''' of the '''Conversion Reactor.'''

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||11:06
||Locate '''Results''' section.

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||11:08
||Under the '''Reactions''' tab, check '''Conversion.'''

It is '''78.33 %.'''

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||11:16
||This is the conversion of the base component of the reaction.

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||11:21
||In this case, it is conversion of '''Carbon monoxide'''.

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||11:26
||Now, go to '''Conversions''' tab.

We will look into the individual conversion of all the reactants.

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||11:34
||Here for '''Carbon monoxide,''' the conversion is '''78.33%''' and for '''Hydrogen,''' it is '''39.16%.'''

|-
||11:45
||Now, go to '''Insert''' menu and select '''Master Property Table.'''

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||11:52
||Double-click on the '''Master Property Table.'''

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||11:56
||'''Configure Master Property Table''' window opens.

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||12:00
||Enter '''Name''' as '''Stream Wise Results.'''

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||12:04
||Enter '''Object Type''' as '''Material Stream'''. By default, '''Material Stream''' is already selected. So we will not change it.

|-
||12:14
||Under '''Properties to display''', select '''Object''' as '''Feed''', '''Vapour Product '''and '''Liquid Product.'''

|-
||12:24
||Under '''Property, '''scroll down to see all the parameters.

|-
||12:30
||Now select the properties as

'''Temperature''' , '''Pressure''' , '''Mass Flow'''

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||12:39
||'''Molar Flow'''

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||12:42
||'''Molar Fraction (Mixture) / Carbon monoxide'''

|-
||12:46
||'''Molar Flow (Mixture) / Carbon monoxide'''

|-
||12:51
||'''Molar Fraction (Mixture) / Hydrogen'''

|-
||12:55
||'''Molar Flow (Mixture) / Hydrogen'''

|-
||13:00
||'''Molar Fraction (Mixture) / Methanol'''

|-
||13:04
||'''Molar Flow (Mixture) / Methanol'''

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||13:08
||Let’s close this window.

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||13:11
||Move the '''Master Property Table''' for better visibility.

|-
||13:16
||Here, we can see the corresponding results for '''Vapour Product, Liquid Product '''and '''Feed.'''

|-
||13:26
||The reaction is a '''Vapour Phase''' reaction.

|-
||13:29
||So, we can see that '''Liquid Product stream''' shows zero flow rate and composition.

|-
|| 13:36
||Let's summarize.

|-
||13:38
||In this tutorial, we have learnt to

Define a '''Conversion Reaction''', Simulate a '''Conversion Reactor''', Calculate '''Conversion percentage''' from '''Conversion function'''

|-
||13:51
||As an assignment,

Repeat this simulation with different '''compounds''' and different '''Conversion'''

|-
||13:59
||Different '''Property Package''', Different '''feed conditions '''

|-
||14:04
||Watch the video available at following link.

It summarizes the Spoken Tutorial project.

|-
|| 14:10
||The Spoken Tutorial Project Team, Conducts workshops and Gives certificates.

For more details, please write to us.

|-
||14:19
||Please post your times queries in this forum.

|-
||14:23
||The '''FOSSEE''' team coordinates conversion of existing flow sheets into '''DWSIM.'''

|-
||14:29
||We give honorarium and certificates.

For more details, please visit this site.

|-
||14:36
||The '''FOSSEE''' team coordinates coding of solved examples of popular books.

|-
||14:42
||We give honorarium and certificates.

For more details, please visit this site.

|-
||14:49
||The '''FOSSEE''' team helps migrate commercial simulator labs to '''DWSIM.'''

|-
||14:55
||We give honorarium and certificates.

For more details, please visit this site.

|-
||15:02
||'''Spoken Tutorial''' and '''FOSSEE''' projects are funded by '''NMEICT, MHRD''', Government of India.

|-
||15:11
||This tutorial is contributed by Kaushik Datta and Priyam Nayak. Thanks for joining.
|-

|}

DWSIM/C2/Conversion-Reactor/English-timed - Revision history

PoojaMoolya: Created page with " {|border=1 ||'''Time''' ||'''Narration''' |- ||00:01 ||Welcome to this tutorial on simulating a '''Conversion Reactor '''in '''DWSIM'''. |- ||00:07 ||In this tutorial, we..."