ASPEN simulation for natural gas desulfurization
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For ASPEN simulation of natural gas desulfurization, which model should be used? Are kinetic parameters needed for absorption? I would appreciate the guidance from senior colleagues and experts. Thank you so much!
Absorption is generally represented using radfrac, and this module provides fairly accurate calculations for absorption. During the absorption process, it’s uncertain whether certain binary interaction parameters can be obtained accurately, and this has a significant impact on the accuracy of the simulation.
Reply to 2# Nini Doudou: It uses e-nrtl, right? But after simulation, there is an imbalance in mass and charge. I don’t know how to fix it
Reply to 3# bernabeu: You are referring to the property-based method; the method you used is correct. But have you included a reaction in it? Although kinetics aren’t necessary, absorption involves a chemical reaction – what kind of absorption are you carrying out?
Reply to 4# Nini Doudou: Thank you for your reply. I added the equation. What I do is the absorption of H2S and CO2 using an MDEA solution. Is ASPEN’s amine package an example?
Reply to 5# bernabeu: That is a property data package, not an example. If you want to do this, ASPEN comes with a built-in property package called KMDEA, which can yield fairly accurate simulation results.
Reply to 6# Nini Doudou: Thank you very much!