Hello everyone,
I hope you are all well.
I am currently working on the simulation of flexible MOFs for carbon capture using aspen adsorption. I am trying to insert the LJMY-Langmuir isotherm using the user-model approach, as shown in the image below. However, the code could not compile because the ERF function is not available in the flowsheet environment. I would be grateful if someone would help regarding this issue or guide me info a better approarch. Also, I am not sure if the code is logically correct.
Regards,
Yarub,
read this paper my be useful
" Temperature dependence of adsorption hysteresis in flexible metal organic frameworks"
Hello Tom R. C. Van Assche
Thank you for your response.
I tried to replace the erf function with tanh. The equation seemed to be fitting with the experimental results, and the code was compiled. However, I faced another issue that the simulation cannot run, which I don’t know whether it is because of the code, or I must fix something in aspen itself. I am not sure if this will help identifying the source of the error, but this is what happened when I tried to initialize the bed conditions.
Also, I will try to read the articles you sent and follow them if they would give an easier pathway. However, this semester is about to end and I am worried I have limited time.
Thank you very much.
Hello Khalid Nadheer Hameed
Thank you for your reply. I actaully followed this article when I wrote the isotherm.