What thermodynamic method is used for PROII simulation of urea CO2 stripping?
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For PROII simulation of urea CO2 stripping, what thermodynamic method is suitable? I would appreciate some guidance from experts
Since we are not familiar with your operating conditions, it would be best if you provided information on the composition of your gas mixture, as well as the operating pressure and temperature. This will enable us to help you analyze it from a thermodynamic perspective.
I heard that it seems only VMG has truly implemented this process. However, it was not widely adopted because its built-in setup process lacks robust functionality and does not support dynamics. However, it seems to be available in the form of a plugin, so it can be used anywhere (especially in Hysys and UniSim Design environments; I’m not sure if ProII has the capability to directly call COM components), so it would be worth asking them. There is a paper here; search for “modeling urea processes” on Google, and the first one listed is it.
Don’t bother; that thing is just a concept that’s still in the development stage – it’s not ready for use yet. VMG2.5 included a UREA property package, but this feature was removed in version 2.8; apparently they themselves think that feature isn’t very useful. As for VMGthermo, it’s also extremely impractical, with many of its features remaining at the conceptual stage
:Handshake: Who has the collection of papers from the national conferences on nitrogen fertilizers and urea in recent years?
Simulating electrolytes is relatively difficult. You can ask the people at the design institute for advice.
You can try the acidic gas kits in the special packages, such as Sour or GPA Sour Water. I’ve used them before; the accuracy isn’t perfect, but it’s acceptable. If there is a lot of data, you can try adjusting the K value; it might improve things.
:Is the skirt section of the urea synthesis tower also lined with insulation material? What is the full name of the \"General Design of Huasi Fourth Research Institute\"?
It is recommended that the poster send over the relevant data in a simplified form, and we will try to help you calculate it
Pro2 can’t be used for this; the data available is incomplete, with values below 8.2 not being available. However, Aspen can be used for simulation, and it shouldn’t be too difficult. If the original poster is interested, they can post the data as suggested above, and I can help with the calculations – it shouldn’t be a problem. Once the results are ready, they can be shared so that other users can learn from them*.
Aspen now has a model, but its calculations are inaccurate; it uses a polarity thermodynamics method developed by itself. I would like to discuss who among the experts does a good job in this area. My contact information is: QQ 252176232, mobile phone 15827203060