in my case the absorber column has a top packing section on top, below that there are 14 trays and below that there are again 2 more packed sections. In that case how do i correctly define the number of stages ?
Packing also has theoretical number of stages. You have to input these stages. Moreover, you can define the geometry in column internals in more detailed manner.
You can add different amines in your component list. After doing this, you will have the option add the concentration of both amines in the make up block. You can run the case study to evaluate the model performance by varying the additives composition in the amine solution. Don't forget to subscribe to Chemiopedia.
actually the flash drum is integrated to a scrubber column at the top section of the drum having a lean amine inlet for scrubbing H2S coming out in the flashed gas, so how can use that in the simulation
There is no such equipment like this im HYSYS. However, you can add flash vessel and column individually and the vapours of the flash vessel may enter in the column bottom to strip out the H2S.
Are you facing any issue? If the error message appears due to recycle, it shows the variable that causing the issue. Try following steps: 1. Remove the recycle block 2. Make sure your simulation is in active mode. 3. Analyze the both stream that has to be recycle. 4. Ensure no major difference in parameters between the streams 5. If the difference is large then the recycle will not converge, so try to reduce the difference by manipulating the parameters. If the issue persist write us: support@chemiopedia.com. Don't forget to subscribe.
Both. HYSYS adds reaction automatically when Acid Gas property package is used. You can see all the reactions in the properties section > reaction set. Don't forget to subscribe!
i followed all the steps exactly like you did but the distillation column for me is taking very long time to run and at the end it is unconverged. I tried this 3,4 times but still same issue
SET ensures that the temperature of the stream is equal to the Lean MDEA stream entering the tower. The difference in the stream can cause convergence failure when you will install the recycle.
Good effort, well done
Thank you.
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Good effort! Keep it up..
Thank you, I will
Thank you, well explained
You are welcome!
hello. Do you have a simulation with piperazine activator (a-mdea)?
No, I am afraid not. I haven't prepared MDEA-PZ simulation yet.
also the flash drum is a three phase separator, for removing hydrocarbon
You can replace the two phase with three phase.
which reaction set did yo add, I am curious most of the reaction are ionic reactions, can we add ionic reactions in aspen hysys, how ?
HYSYS adds reaction automatically when Acid Gas property package is used. You can see all the reactions in the properties section > reaction set
in my case the absorber column has a top packing section on top, below that there are 14 trays and below that there are again 2 more packed sections. In that case how do i correctly define the number of stages ?
Packing also has theoretical number of stages. You have to input these stages. Moreover, you can define the geometry in column internals in more detailed manner.
Can i use this simulation with presence of H2S in the feed? I noticed your feed does not have H2S.
Yes, we can add H2S in feed as well. There will be no complications.
thanks a lot for the video, how do you calculate absorber and stripper stages for amine simulations.
THANK YOU, JUST A QUESTION IF I NEED TO USE MIXED AMINE TO OBTAIN THE BEST PERFORMANCE WHAT CAN I DO? MANY THANKS IN ADVANCE FOR ALL YOUR HELP.
You can add different amines in your component list. After doing this, you will have the option add the concentration of both amines in the make up block. You can run the case study to evaluate the model performance by varying the additives composition in the amine solution.
Don't forget to subscribe to Chemiopedia.
@@Chemiopedia thanks a lot
actually the flash drum is integrated to a scrubber column at the top section of the drum having a lean amine inlet for scrubbing H2S coming out in the flashed gas, so how can use that in the simulation
There is no such equipment like this im HYSYS.
However, you can add flash vessel and column individually and the vapours of the flash vessel may enter in the column bottom to strip out the H2S.
is this a simulation of the factory sir? may I know what is the name of the factory, sir?
can u plz explain on converging the stream after connecting the recycle stream
Are you facing any issue?
If the error message appears due to recycle, it shows the variable that causing the issue. Try following steps:
1. Remove the recycle block
2. Make sure your simulation is in active mode.
3. Analyze the both stream that has to be recycle.
4. Ensure no major difference in parameters between the streams
5. If the difference is large then the recycle will not converge, so try to reduce the difference by manipulating the parameters.
If the issue persist write us: support@chemiopedia.com.
Don't forget to subscribe.
Thank you! Maybe a silly question but is this a rate-based model or an equilibrium-based model?
Both.
HYSYS adds reaction automatically when Acid Gas property package is used. You can see all the reactions in the properties section > reaction set.
Don't forget to subscribe!
I have a question. You used from the palette a Make-up module, which I do not have. Is that module unique in your simulation?
Which version of HYSYS do you have?
@@Chemiopedia It is an older version, that is why I do not have it. Thanks any way
how much the final CO2 mole% after sweetened? (in this simulation)
what is the meaning of shell in series ?
Shell in series means two exchangers are installed in series. The shell out of 1st will enter the shell of second. same for tube side fluid.
i followed all the steps exactly like you did but the distillation column for me is taking very long time to run and at the end it is unconverged. I tried this 3,4 times but still same issue
sir, which factory is this from ?
what is the meaning, inlet stage 1_Main Tower ? in regenerator
In stripper, the feed enters at the top stage. 1_Main Tower means the feed is at the top most tray.
Hello, Sir. Can I have a copy of the simulation just to check how it’s done? :)
Please write to us: support@chemiopedia.com
This is very helpful. Great taste on the bgm. What is the name of this music?
sounds like a gnossienne of Satie but?
Hi, can this simulation be used with DEA?
The process for DEA is same however you have to adjust the operating parameters.
@@Chemiopedia would you by chance have the operating parameters? 😅
Not sure.
But you can find easily on google.
can you explain the SET on booster pump to MDEA for temperature control
SET ensures that the temperature of the stream is equal to the Lean MDEA stream entering the tower. The difference in the stream can cause convergence failure when you will install the recycle.
Well thats a good one.
I am having a severe error regarding pressure but everything is same as the video
it was too fast , cant follow, and no explanation either :(
If you need any help. You can write us on support@chemiopedia.com
Thanks, well explained and uptodate
Glad it was helpful!
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