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