DWSIM/C4/Creating-Multiple-Reactions-set/English-timed

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Time Narration
00:01 Welcome to this tutorial on Creating Reaction Set with Multiple Reactions in DWSIM.
00:09 In this tutorial, we will learn to:
00:12 Create Reaction Set with Multiple Reactions
00:16 Copy and reuse a Conversion Reaction
00:20 Use Create and Connect feature to auto create and connect Material Streams
00:27 To record this tutorial, I am using

DWSIM 5.8 (Classic UI) Update 4 and Windows 10 OS

00:39 The process demonstrated in this tutorial is identical in other OS also such as- Linux, Mac OS X or FOSSEE OS on ARM.
00:51 To practice this tutorial, you should know to-

Add material and energy streams and specify their properties.

01:00 Add Conversion Reaction
01:03 Specify Conversion Reactor parameters
01:07 The prerequisite tutorials are mentioned on our website.
01:12 You can access these tutorials and all the associated files from this site.
01:19 Multiple Reaction file used in the tutorial is provided as a Code file on this tutorial page.
01:27 Download the file from Code Files link.

Make a copy and then use it while practising.

01:36 We will develop a flowsheet to determine the exit composition from Conversion Reactor with multiple reactions.
01:44 Here we give Property Package and Inlet Streams Conditions, as shown here.
01:50 Next, we give the Reactions and Reaction Conversion for Reaction 1 and 2.
01:57 Here we give the Reaction inputs for Reaction 3 and 4.
02:03 Next, we give the Conversion Reactor operating conditions.
02:09 The flowsheet to be created is shown here for ease of understanding.
02:15 I have already opened DWSIM on my machine.
02:20 Go to File menu and click on Open File.
02:25 I have already downloaded and extracted the file on my Desktop.
02:31 Select the file from the Desktop.
02:35 Let us now maximize the simulation window.
02:39 This file contains all the inlet material streams that enter the reactors.
02:45 Let us add the reactions first and create a reaction set for the reactors.
02:51 For this, click on Settings button on the toolbar.
02:56 Then click on Reactions Tab.
02:59 Under Chemical Reactions section, click on the green coloured Add Reaction button.
03:05 Then click on Conversion.
03:08 Add New Conversion Reaction window opens.
03:12 Under Identification, enter the Name as Reaction-1.
03:18 Now, let’s type the Description.
03:21 Synthesis of Ethylbenzene from Ethylene and Benzene.”
03:26 Next part is a table of Components/Stoichiometry.
03:31 Under Include, check the check-boxes against:

Ethylene, Benzene and Ethylbenzene

03:39 Under BC, check the Ethylene check box.
03:43 Under Stoic Coeff column, enter: -1 for Ethylene, -1 for Benzene and 1 for Ethylbenzene

Then press Enter.

03:56 Then comes Conversion Reactions Parameters.
04:00 The Base comp is already indicated as Ethylene.
04:05 Select Phase as Mixture.
04:08 Now go to Conversion.

As per the problem statement, enter 73.5 against Conversion.

04:17 At the bottom, click on the OK button.
04:21 Now, we will add the second reaction.
04:25 Under Chemical Reactions section, click on Add Reaction button.
04:29 Then click on Conversion.
04:32 Add New Conversion Reaction window opens.
04:36 Under Identification, enter the Name as Reaction 2.
04:41 Type the Description as “Synthesis of P-diethylbenzene from Ethylene and Benzene.”
04:48 Next, go to Components/Stoichiometry.
04:52 Under Include, check the check-boxes against:

Ethylene, Benzene and P-diethylbenzene.

05:01 Under BC, check the Ethylene check box.
05:05 Under Stoic Coeff column, enter:

-2 for Ethylene, -1 for Benzene and 1 for P-diethylbenzene. Then press Enter.

05:20 Now comes Conversion Reactions Parameters.
05:23 The Base comp is already indicated as Ethylene.
05:29 Select Phase as Mixture.
05:33 Now go to Conversion.

As per the problem statement, enter 25.5 against Conversion.

05:42 At the bottom, click on the OK button.
05:46 Now, we will add the third reaction.
05:50 Under Chemical Reactions section, click on Add Reaction button.
05:56 Then click on Conversion.
05:58 Add New Conversion Reaction window opens.
06:02 Under Identification, enter the Name as Reaction-3.
06:07 Let’s type the Description.

Synthesis of Ethylbenzene from P-diethylbenzene and Benzene.”

06:15 Next part is a table of Components/Stoichiometry.
06:20 Under Include, check the check-boxes against:

Benzene, Ethylbenzene and P-diethylbenzene

06:29 Under BC, check the P-diethylbenzene check box.
06:34 Under Stoic Coeff column, enter:

-1 for Benzene, 2 for Ethylbenzene and -1 for P-diethylbenzene Then press Enter.

06:48 Next comes Conversion Reactions Parameters.
06:52 The Base comp is already indicated as P-diethylbenzene.
06:57 Select Phase as Mixture.
07:01 Now go to Conversion.
07:03 As per the problem statement, enter 22.13 against Conversion.
07:09 At the bottom, click on the OK button.
07:13 Now we will add the last reaction.

Formation of Ethylbenzene from ethylene and benzene.

07:21 This reaction is similar to the first reaction but with a different conversion.
07:27 For this, we will not add a new reaction.

We will copy the existing Reaction-1 and edit the required fields.

07:37 Select Reaction 1 and click on Copy Selected Reaction button.
07:43 We see that a new reaction is added named Reaction 11.
07:49 Double click on Reaction 11.
07:52 Edit Conversion Reaction window opens.
07:56 Under Identification, edit the Name as Reaction 4.
08:01 All the reaction details remain the same except Conversion.
08:07 Go to Conversion.

As per the problem statement, enter 97 against Conversion.

08:15 At the bottom, click on the OK button.
08:19 Now, all the reactions are added.
08:22 Next we will create reaction sets with different reactions.
08:27 On the left side of Reactions tab, go to Reaction Sets.
08:32 Under Reaction Sets section, click on the green coloured Add New Reaction Set button.
08:38 DWSIM-Reaction Set Editor window opens.
08:43 Under Identification, enter the Name as Reactor-1.
08:48 Now type the Description as Reactions for Reactor-1.”
08:53 Under Reactions section, click on the green coloured Add Reaction button.
08:59 All four reactions which we added, are being displayed.
09:04 Select Reaction 1 from the displayed reaction list.
09:08 Similarly click on Add Reaction button again and select Reaction 2.
09:14 The reaction set for Reactor 1 is ready.
09:18 At the bottom, click on the OK button.
09:22 We will follow a similar approach to add Reaction Set for Reactor 2.
09:27 Under Reaction Sets section, again click on the Add New Reaction Set button.
09:33 DWSIM-Reaction Set Editor window opens.
09:38 Under Identification, enter the Name as Reactor-2.
09:43 Now type the Description as “Reactions for Reactor-2.”
09:49 Under Reactions section, click on the Add Reaction button.
09:52 Select Reaction-3 from the displayed reaction list.
09:58 Similarly, select Reaction-4.
10:01 At the bottom, click on the OK button.
10:05 All the reaction sets are now ready.
10:09 Close the Settings window.
10:12 Now, go to the Flowsheet area.
10:15 Let’s create and connect the material streams to the unit operations.
10:20 To do this, we will use Create and Connect feature.
10:25 At the bottom of the main simulation window, go to Reactors tab.
10:30 Click on the Conversion Reactor displayed.

Drag and drop it to the flowsheet.

10:36 Let’s change the name of the object to R-01.
10:41 Under Connections, click on the drop-down against Inlet Stream and select S-01.
10:49 Now, click on yellow coloured Create and Connect button against Outlet Stream 1.
10:56 A material stream MSTR 003 gets created and connected to R-01.
11:03 Similarly, click on Create and Connect button against Outlet Stream 2 and Energy Stream.
11:11 Now, let us arrange the streams properly.
11:15 This completes the stream connections.
11:18 Now we will specify the Calculation Parameters for R-01.
11:24 Go to Calculation Parameters.
11:27 Under Parameters tab, select Reaction Set as Reactor 1.
11:33 Select Calculation Mode as Define Outlet Temperature.
11:37 Change Outlet Temperature to 434 K and press Enter.
11:43 Now we will rename the outlet streams and energy stream from R-01.
11:49 Click on MSTR-003 and rename as Null-01.
11:55 Click on MSTR-004 and rename as S 02.
12:01 Click on ESTR-005 and rename as E 01.
12:07 Let us continue to the flowsheet.
12:10 At the bottom of the main simulation window, go to Mixers/Splitters tab.
12:16 Click on the Stream Mixer displayed.

Drag and drop it to the flowsheet.

12:22 Change the name of the object to MIX-01.
12:26 Under Connections, click on the drop-down against Inlet Stream 1 and select S-03.
12:34 Next, click on drop-down against Inlet Stream 2 and select S-02.
12:42 Now click on Create and Connect button against Outlet Stream.
12:48 A material stream gets created and connected to the Outlet Stream of MIX-01.
12:55 Now, let us arrange the streams properly.
12:59 Click on MSTR-007 and rename as S 04.
13:05 Now, let us finish creating the flowsheet.
13:09 At the bottom of the main simulation window, go to Reactors tab.
13:14 Click on the Conversion Reactor displayed.

Drag and drop it to the flowsheet.

13:20 Change the name of the object to R 02.
13:24 Under Connections, click on drop-down against Inlet Stream and select S 04.
13:32 Click on Create and Connect button against Outlet Stream 1, Outlet Stream 2 and Energy Stream.
13:41 Now, let us arrange the streams properly.
13:45 Let us finish specifying the calculation parameters for R 02.
13:51 Go to Calculation Parameters.
13:53 Under Parameters tab, select the Reaction Set as Reactor-2.
13:59 Select Calculation Mode as Define Outlet Temperature.
14:04 Change Outlet Temperature to 432 Kelvin and press Enter.
14:10 Now, click on MSTR-009 and rename it as Null-02.
14:17 Click on MSTR 010 and rename it as S 05.
14:24 Click on ESTR-011 and rename it as E 02.
14:30 This completes the flowsheet.
14:33 Now, we will run the simulation.
14:36 So, from the toolbar, click on the Solve Flowsheet button.
14:41 When the calculations are completed, click on the S 05 in the flowsheet.
14:47 Go to the Property Editor Window of S 05.

Locate the Results tab.

14:55 Under Compounds tab, check the Amounts tab.
14:59 Change the Basis to Mass Flows.

Check the Mass Flow Rate of all the compounds.

15:07 Here for Ethylene, the mass flow rate is 0.001 kg/second , for Benzene, it is 20.903 kg/second.
15:20 For Ethylbenzene it is 20.252 kg/second and for P-diethylbenzene it is 13.842 kg/s.
15:33 I have tabulated these results in a slide.
15:37 Let's summarize.
15:39 In this tutorial, we have learnt to
15:42 Create Reaction Set with Multiple Reactions
15:46 Copy and Reuse a Conversion Reaction
15:50 Use Create and Connect feature to auto create and connect Material Streams
15:57 As an assignment, do the following:

Find out, Which reactions are added in the Default Set available under the Reaction Sets?

16:06 What happens when Calculation Mode for R-01 is set to Isothermal?
16:12 What happens when Calculation Mode for R-02 is set to Adiabatic?
16:18 What happens when Phase for the Reactions is changed to Liquid?
16:23 Watch the video available at the following link.

It summarizes the Spoken Tutorial project.

16:30 The Spoken Tutorial Project Team conducts workshops and gives certificates.

For more details, please write to us.

16:39 Please post your timed queries in this forum.
16:43 The FOSSEE team coordinates conversion of existing flowsheets into DWSIM.
16:49 We give honorarium and certificates.

For more details, please visit this site.

16:56 The FOSSEE team helps migrate commercial simulator labs to DWSIM.
17:02 We give honorarium and certificates.

For more details, please visit this site.

17:09 Spoken Tutorial and FOSSEE projects are funded by NMEICT, MHRD, Government of India.
17:18 This tutorial is contributed by Kaushik Datta and Priyam Nayak.

Thanks for joining.

Contributors and Content Editors

PoojaMoolya