A brief discussion on the Radfrac module in Aspen
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I have been learning recently how to use Radfrac to simulate chemical absorption processes, and I have a question: when using the equilibrium level approach, we can define plate efficiency to represent the imperfections in gas-liquid equilibrium; whereas when using the rate-based approach, we can define tower internals and similar elements to simulate the imperfections in gas-liquid equilibrium caused by mass transfer resistance. So, when using ratebased, is it still meaningful to define panel efficiency? Or is my understanding of the relationship between the rate order and mass transfer resistance incorrect? I hope the experts can point out any mistakes; thank you.
The plate efficiency is determined based on actual conditions; generally, the theoretical plate number is sufficient, as it facilitates convergence.