Difference between revisions of "DWSIM/C2/Continuous-Stirred-Tank-Reactor/English-timed"

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|-
 
|-
 
|| 00:07
 
|| 00:07
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|| In this tutorial, we will learn to:  Simulate a '''Continuous Stirred Tank Reactor (CSTR)''',
+
|| In this tutorial, we will learn to:  simulate a '''Continuous Stirred Tank Reactor (CSTR)''',
  
 
|-
 
|-
 
|| 00:14
 
|| 00:14
−
|| Calculate '''Conversion''' and '''Residence Time''' for a '''reaction''' in a '''CSTR'''.
+
|| calculate '''Conversion''' and '''Residence Time''' for a '''reaction''' in a '''CSTR'''.
  
 
|-
 
|-
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|-
 
|-
 
|| 00:40
 
|| 00:40
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|| To practice this tutorial, you should know how to-  add components to a '''flowsheet,'''
+
|| To practice this tutorial, you should know how to-  add '''component'''s to a '''flowsheet,'''
  
 
|-
 
|-
 
|| 00:46
 
|| 00:46
−
|| select '''thermodynamic''' packages,
+
|| select '''thermodynamic package'''s,
  
 
|-
 
|-
 
|| 00:49
 
|| 00:49
−
|| add '''material''' and '''energy''' stream and specify their properties
+
|| add '''material''' and '''energy stream''' and specify their properties
  
 
|-
 
|-
 
|| 00:54
 
|| 00:54
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|| and, add '''kinetic reaction''' in '''reaction manager.'''
+
|| and add '''kinetic reaction''' in '''reaction manager.'''
  
 
|-
 
|-
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|-
 
|-
 
|| 02:24
 
|| 02:24
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|| From '''Default Flash Algorithm '''select '''Nested Loops(VLE)'''
+
|| From '''Default Flash Algorithm, '''select '''Nested Loops(VLE)'''.
  
 
|-
 
|-
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|-
 
|-
 
|| 02:46
 
|| 02:46
−
|| Let us now maximize the simulation window.
+
|| Let us now maximize the '''simulation window'''.
  
 
|-
 
|-
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|-
 
|-
 
|| 04:28
 
|| 04:28
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|| On the right, click on this green tick to '''Accept Changes'''
+
|| On the right, click on this green tick to '''Accept Changes'''.
  
 
|-
 
|-
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|-
 
|-
 
|| 05:15
 
|| 05:15
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|| Next part is a table of '''Components, Stoichiometry and Reaction Orders.'''
+
|| Next part is a '''table''' of '''Components, Stoichiometry''' and '''Reaction Orders'''.
  
 
|-
 
|-
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|-
 
|-
 
|| 05:51
 
|| 05:51
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|| Under ''' Stoichiometric coefficients '''column, enter: '''-1''' for '''Ethanol'''
+
|| Under ''' Stoichiometric coefficients '''column, enter: '''-1''' for '''Ethanol''',
  
 
|-
 
|-
 
||05:58
 
||05:58
−
|| '''-1''' for '''Acetic Acid'''
+
|| '''-1''' for '''Acetic Acid''',
  
 
|-
 
|-
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|-
 
|-
 
|| 06:15
 
|| 06:15
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|| Here the '''Equation''' field shows the '''reaction equation'''.
+
|| Here, the '''Equation''' field shows the '''reaction equation'''.
  
 
|-
 
|-
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|-
 
|-
 
||06:26
 
||06:26
−
|| So under '''DO''' column, enter: '''1''' for '''Ethanol'''
+
|| So under '''DO''' column, enter: '''1''' for '''Ethanol''',
  
 
|-
 
|-
 
||06:32
 
||06:32
−
|| '''1''' for '''Acetic Acid'''. And then press '''Enter.'''
+
|| '''1''' for '''Acetic Acid''' and then press '''Enter.'''
  
 
|-
 
|-
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|-
 
|-
 
||06:55
 
||06:55
−
|| So we will select '''Basis''' as '''Molar Concentrations.'''
+
|| So, we will select '''Basis''' as '''Molar Concentrations.'''
  
 
|-
 
|-
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|-
 
|-
 
|| 07:05
 
|| 07:05
−
|| Enter '''Tmin''' as '''300''
+
|| Enter '''Tmin''' as '''300'''.
  
 
|-
 
|-
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|-
 
|-
 
|| 07:12
 
|| 07:12
−
|| Now go to '''Direct and''' '''Reverse Reactions Velocity Constant.'''
+
|| Now, go to '''Direct and Reverse Reactions Velocity Constant.'''
  
 
|-
 
|-
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|-
 
|-
 
|| 07:29
 
|| 07:29
−
|| Now let us insert a '''Continuous Stirred Tank Reactor''' to the flowsheet.
+
|| Now, let us insert a '''Continuous Stirred Tank Reactor''' to the flowsheet.
  
 
|-
 
|-
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|-
 
|-
 
|| 07:50
 
|| 07:50
−
|| And then let us insert one '''Output Stream.'''
+
|| And then, let us insert one '''Output Stream.'''
  
 
|-
 
|-
 
|| 07:54
 
|| 07:54
−
|| To do that let us drag one '''Material Stream.'''
+
|| To do that, let us drag one '''Material Stream.'''
  
 
|-
 
|-
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|-
 
|-
 
|| 08:01
 
|| 08:01
−
|| Leave that stream as unspecified.
+
|| Leave that '''stream''' as unspecified.
  
 
|-
 
|-
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|-
 
|-
 
|| 08:09
 
|| 08:09
−
|| Next, we will insert one '''Energy Stream.'''  And name this '''stream''' as '''Energy.'''
+
|| Next, we will insert one '''Energy Stream'''  and name this '''stream''' as '''Energy.'''
  
 
|-
 
|-
 
|| 08:16
 
|| 08:16
 
|| We are now ready to specify the''' Continuous Stirred Tank Reactor.'''
 
|| We are now ready to specify the''' Continuous Stirred Tank Reactor.'''
−
 
 
Let’s click on it.
 
Let’s click on it.
  
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|| 08:29
 
|| 08:29
 
|| Under '''Connections,''' click on the drop-down against '''Inlet Stream.'''
 
|| Under '''Connections,''' click on the drop-down against '''Inlet Stream.'''
−
 
 
And select '''Feed.'''
 
And select '''Feed.'''
  
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|| 09:09
 
|| 09:09
 
|| Then click on the field against '''Reactor Volume''' and enter 0.14'''  
 
|| Then click on the field against '''Reactor Volume''' and enter 0.14'''  
−
 
 
Then press '''Enter.'''
 
Then press '''Enter.'''
  
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|| 09:39
 
|| 09:39
 
|| Under the '''General''' tab, click '''Residence time.'''
 
|| Under the '''General''' tab, click '''Residence time.'''
−
 
 
It is '''0.033 hour.'''
 
It is '''0.033 hour.'''
  
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|-
 
|-
 
||10:22
 
||10:22
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|| By default, '''Material Stream''' is already selected. So we will not change it.
+
|| By default, '''Material Stream''' is already selected. So, we will not change it.
  
 
|-
 
|-
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|| Now select the properties as
 
|| Now select the properties as
  
−
'''Temperature'''
+
'''Temperature''',
  
−
'''Pressure'''
+
'''Pressure''',
  
−
'''Mass Flow'''
+
'''Mass Flow''',
  
−
'''Molar Flow'''
+
'''Molar Flow''',
  
 
|-
 
|-
 
|| 10:48
 
|| 10:48
−
||'''Liquid Phase (Mixture) Volumetric Fraction'''
+
||'''Liquid Phase (Mixture) Volumetric Fraction''',
  
 
|-
 
|-
 
|| 10:53
 
|| 10:53
−
||'''Molar Flow (Mixture) / Ethanol'''
+
||'''Molar Flow (Mixture) / Ethanol''',
  
 
|-
 
|-
 
|| 10:56
 
|| 10:56
−
||'''Mass Flow (Mixture) / Ethanol'''
+
||'''Mass Flow (Mixture) / Ethanol''',
  
 
|-
 
|-
 
|| 10:59
 
|| 10:59
−
||'''Molar Flow (Mixture) / Acetic Acid'''
+
||'''Molar Flow (Mixture) / Acetic Acid''',
  
 
|-
 
|-
 
|| 11:01
 
|| 11:01
−
||'''Mass Flow (Mixture) / Acetic Acid'''
+
||'''Mass Flow (Mixture) / Acetic Acid''',
  
 
|-
 
|-
 
|| 11:06
 
|| 11:06
−
||'''Molar Flow (Mixture) / Water'''
+
||'''Molar Flow (Mixture) / Water''',
  
 
|-
 
|-
 
|| 11:09
 
|| 11:09
−
||'''Mass Flow (Mixture) / Water'''
+
||'''Mass Flow (Mixture) / Water''',
  
 
|-
 
|-
 
|| 11:12
 
|| 11:12
−
||'''Molar Flow (Mixture) / Ethyl Acetate'''
+
||'''Molar Flow (Mixture) / Ethyl Acetate''',
  
 
|-
 
|-
 
|| 11:16
 
|| 11:16
−
||'''Mass Flow (Mixture) / Ethyl Acetate'''
+
||'''Mass Flow (Mixture) / Ethyl Acetate''',
  
 
|-
 
|-
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|-
 
|-
 
||11:33
 
||11:33
−
|| In this tutorial, we have learnt to Simulate a '''Continuous Stirred Tank Reactor'''
+
|| In this tutorial, we have learnt to: simulate a '''Continuous Stirred Tank Reactor''',
  
 
|-
 
|-
 
||11:38
 
||11:38
−
|| Calculate '''Conversion''' and '''Residence time''' for a reaction in a '''CSTR'''
+
|| calculate '''Conversion''' and '''Residence time''' for a reaction in a '''CSTR'''.
  
 
|-
 
|-
 
|| 11:44
 
|| 11:44
−
|| As an assignment, Repeat the simulation with different '''compounds''' and '''thermodynamics'''.
+
|| As an assignment, repeat the '''simulation''' with different '''compounds''' and '''thermodynamics''',
−
 
+
 
|-
 
|-
 
|| 11:50
 
|| 11:50
−
||Different '''feed conditions '''
+
||different '''feed conditions''',
  
 
|-
 
|-
 
|| 11:53
 
|| 11:53
−
||Different '''CSTR dimensions''' and '''reaction kinetics '''
+
||different '''CSTR dimensions''' and '''reaction kinetics. '''
  
 
|-
 
|-
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|-
 
|-
 
||12:01
 
||12:01
−
|| It summarizes the Spoken Tutorial project.
+
|| It summarizes the '''Spoken Tutorial''' project.
  
 
|-
 
|-
 
||12:05
 
||12:05
−
|| The Spoken Tutorial Project Team
+
|| The Spoken Tutorial Project Team conducts workshops and  gives certificates. For more details, please write to us.  
−
 
+
−
Conducts workshops and  Gives certificates. For more details, please write to us.  
+
  
 
|-
 
|-
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|-
 
|-
 
||12:18
 
||12:18
−
|| The '''FOSSEE''' team coordinates conversion of existing flow sheets into '''DWSIM'''
+
|| The '''FOSSEE''' team coordinates conversion of existing flow sheets into '''DWSIM'''.
  
 
|-
 
|-
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|-
 
|-
 
|| 12:52
 
|| 12:52
−
||We give honorarium and certificates for those who do this. For more details, please visit this site
+
||We give honorarium and certificates for those who do this. For more details, please visit this '''site'''.
  
 
|-
 
|-
 
|| 13:01
 
|| 13:01
−
|| '''Spoken Tutorial''' and '''FOSSEE''' projects are funded by '''NMEICT, MHRD''', Government of India.
+
|| '''Spoken Tutorial''' and '''FOSSEE''' projects are funded by '''NMEICT, MHRD''' Government of India.
  
 
|-
 
|-
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|| This tutorial is contributed by Kaushik Datta and Priyam Nayak.
 
|| This tutorial is contributed by Kaushik Datta and Priyam Nayak.
  
−
Thanks for joining
+
Thanks for joining.
  
 
|}
 
|}

Latest revision as of 14:17, 21 June 2018

Time Narration
00:01 Welcome to this tutorial on simulating a Continuous Stirred Tank Reactor (CSTR) in DWSIM.
00:07 In this tutorial, we will learn to: simulate a Continuous Stirred Tank Reactor (CSTR),
00:14 calculate Conversion and Residence Time for a reaction in a CSTR.
00:20 To record this tutorial, I am using DWSIM 4.3 and Windows 7.
00:28 The process demonstrated in this tutorial is identical in other OS also such as- Linux, Mac OS X or FOSSEE OS on ARM.
00:40 To practice this tutorial, you should know how to- add components to a flowsheet,
00:46 select thermodynamic packages,
00:49 add material and energy stream and specify their properties
00:54 and add kinetic reaction in reaction manager.
00:58 The pre-requisite tutorials are mentioned on our website.
01:03 You can access these tutorials and all the associated files from this site.
01:09 We will develop a flowsheet to determine the exit composition from an isothermal CSTR.
01:16 Here we give Reaction, Property Package and Inlet Stream Conditions.
01:22 Next, we give CSTR dimensions and reaction kinetics.
01:27 I have already opened DWSIM on my machine.
01:32 Go to File menu and select New Steady-state Simulation.
01:37 Simulation Configuration Wizard window appears. At the bottom, click on Next.
01:44 Now, in the Compounds Search tab, type Ethanol.
01:50 Select Ethanol from ChemSep database.
01:54 Similarly, add Acetic Acid.
01:58 Next, add Water.
02:02 Next, add Ethyl Acetate.
02:06 Click on Next.
02:08 Now comes Property Packages.
02:12 From Available Property Packages, double-click on NRTL.
02:18 Then click on Next.
02:21 We are moved to Flash Algorithm.
02:24 From Default Flash Algorithm, select Nested Loops(VLE).
02:31 Click on Next.
02:33 The next option is System of Units.
02:37 Under System of Units, we will select C5.
02:43 Then click on Finish.
02:46 Let us now maximize the simulation window.
02:50 Let’s insert a feed stream that enters the CSTR.
02:54 Go to Object Palette.
02:56 From Streams section, drag and drop a Material Stream to the Flowsheet.
03:02 Let’s change the name of this stream to Feed.
03:07 Now we will specify the Feed stream properties.
03:12 Go to Input Data.
03:15 Select Flash Spec as Temperature and Pressure (TP), if not already selected.
03:21 By default, Temperature and Pressure are already selected as Flash Spec.
03:27 Change Temperature to 70 degC and press Enter.
03:33 Change Pressure to 1 bar and press Enter.
03:38 Change Mass Flow to 3600 kg/hour and press Enter.
03:45 Now let us specify the feed stream compositions.
03:50 Under Composition, choose the Basis as Mole Fractions, if not already selected.
03:57 By default, Mole Fractions is already selected as Basis.
04:02 Now for Ethanol, enter the Amount as 0.48 and press Enter.
04:10 For Acetic Acid, enter 0.5 and press Enter.
04:16 Similarly, for Water, enter 0.02 and press Enter.
04:23 For Ethyl Acetate, enter 0 and press Enter.
04:28 On the right, click on this green tick to Accept Changes.
04:33 Next, we will define the Kinetic Reaction.
04:37 Under Tools, click on Reactions Manager.
04:42 Chemical Reactions Manager window opens.
04:46 Under Chemical Reactions tab, click on the green coloured Add Reaction button.
04:52 Then click on Kinetic.
04:55 Add New Kinetic Reaction window opens.
04:59 Under Identification, enter the Name as Ethyl Acetate.
05:05 Now enter the Description. “Irreversible reaction for synthesis of Ethyl Acetate from Ethanol and Acetic Acid.”
05:15 Next part is a table of Components, Stoichiometry and Reaction Orders.
05:21 First column Name shows the available compounds here.
05:26 Second column corresponds to its Molar Weight
05:30 Next column is Include. Under Include, check all the check boxes.
05:37 The fourth column is BC. Under BC, check the Ethanol check box as Ethanol is the base component.
05:47 Next column is Stoichiometric coefficients
05:51 Under Stoichiometric coefficients column, enter: -1 for Ethanol,
05:58 -1 for Acetic Acid,
06:01 1 for Water and 1 for Ethyl Acetate and then press Enter.
06:10 In the Stoichiometry field, we can see it is showing OK.
06:15 Here, the Equation field shows the reaction equation.
06:20 Next column is DO.
06:22 We are considering the reaction to be elementary.
06:26 So under DO column, enter: 1 for Ethanol,
06:32 1 for Acetic Acid and then press Enter.
06:38 Next column is RO.
06:41 Since we are considering an irreversible reaction, we will not enter anything here.
06:47 Then comes Kinetic Reactions Parameters.
06:51 Our rate is in terms of molar concentration.
06:55 So, we will select Basis as Molar Concentrations.
07:00 Select Fase as Liquid, if not already selected.
07:05 Enter Tmin as 300.
07:09 Enter Tmax as 2000.
07:12 Now, go to Direct and Reverse Reactions Velocity Constant.
07:17 In Direct Reaction, enter A as 0.005.
07:23 Click on OK and close Chemical Reactions Manager window.
07:29 Now, let us insert a Continuous Stirred Tank Reactor to the flowsheet.
07:35 Go to Object Palette.
07:37 Under Unit Operations, Click on the Continuous Stirred Tank Reactor.
07:43 Drag and drop it to the flowsheet.
07:46 Let us now arrange it as required.
07:50 And then, let us insert one Output Stream.
07:54 To do that, let us drag one Material Stream.
07:58 Let us once again arrange it.
08:01 Leave that stream as unspecified.
08:04 We will change the name of this stream to Product.
08:09 Next, we will insert one Energy Stream and name this stream as Energy.
08:16 We are now ready to specify the Continuous Stirred Tank Reactor.

Let’s click on it.

08:23 On the left, we can see a tab displaying properties related to the CSTR.
08:29 Under Connections, click on the drop-down against Inlet Stream.

And select Feed.

08:36 Next, click on the drop-down against Outlet Stream 1 and select Product.
08:43 Then click on the drop-down against Energy Stream and select Energy.
08:50 Now go to the next section, Calculation Parameters.
08:55 Here, the first option is Reaction Set. By default, it is Default Set.
09:02 Next, click on the drop-down against Calculation Mode and select Isothermic.
09:09 Then click on the field against Reactor Volume and enter 0.14

Then press Enter.

09:18 Now we will run the simulation.
09:21 So, from the toolbar, click on Solve Flowsheet button.
09:26 When the calculations are completed, click on the Continuous Stirred Tank Reactor in the flowsheet.
09:33 From the Property Editor Window of CSTR, locate Results section.
09:39 Under the General tab, click Residence time.

It is 0.033 hour.

09:46 Now go to Conversions tab.
09:49 Here for Ethanol, the conversion is 99.5% and for Acetic Acid, it is 95.5%.
10:00 Now, go to Insert menu and select Master Property Table.
10:06 Double-click on the Master Property Table.
10:10 Configure Master Property Table window opens.
10:14 Enter Name as Results – Continuous Stirred Tank Reactor.
10:19 Enter Object Type as Material Stream.
10:22 By default, Material Stream is already selected. So, we will not change it.
10:29 Under Properties to display, select Object as Product and Feed.
10:35 Under Property, scroll down to see all the parameters.
10:40 Now select the properties as

Temperature,

Pressure,

Mass Flow,

Molar Flow,

10:48 Liquid Phase (Mixture) Volumetric Fraction,
10:53 Molar Flow (Mixture) / Ethanol,
10:56 Mass Flow (Mixture) / Ethanol,
10:59 Molar Flow (Mixture) / Acetic Acid,
11:01 Mass Flow (Mixture) / Acetic Acid,
11:06 Molar Flow (Mixture) / Water,
11:09 Mass Flow (Mixture) / Water,
11:12 Molar Flow (Mixture) / Ethyl Acetate,
11:16 Mass Flow (Mixture) / Ethyl Acetate,
11:19 Close this window.
11:21 Move the Master Property Table for better visibility.
11:25 Here we can see the corresponding results for Product and Feed.
11:31 Let's summarize.
11:33 In this tutorial, we have learnt to: simulate a Continuous Stirred Tank Reactor,
11:38 calculate Conversion and Residence time for a reaction in a CSTR.
11:44 As an assignment, repeat the simulation with different compounds and thermodynamics,
11:50 different feed conditions,
11:53 different CSTR dimensions and reaction kinetics.
11:58 Watch the video available at the following link.
12:01 It summarizes the Spoken Tutorial project.
12:05 The Spoken Tutorial Project Team conducts workshops and gives certificates. For more details, please write to us.
12:14 Please post your times queries in this forum.
12:18 The FOSSEE team coordinates conversion of existing flow sheets into DWSIM.
12:24 We give honorarium and certificates for those who do this. For more details, please visit this site.
12:33 The FOSSEE team coordinates coding of solved examples of popular books.
12:38 We give honorarium and certificates for those who do this. For more details, please visit this site.
12:47 The FOSSEE team helps migrate commercial simulator labs to DWSIM.
12:52 We give honorarium and certificates for those who do this. For more details, please visit this site.
13:01 Spoken Tutorial and FOSSEE projects are funded by NMEICT, MHRD Government of India.
13:09 This tutorial is contributed by Kaushik Datta and Priyam Nayak.

Thanks for joining.

Contributors and Content Editors

PoojaMoolya, Sandhya.np14

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