Selection of physical property methods
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Hello everyone, I am working on extractive distillation of ethanol-water systems, using ethylene glycol as the extractant, and I need to use Aspen Plus for simulation. But I don’t know which physical property method to choose. I hope everyone can help me. Thank you!
NRTL; I’ve seen some examples where this is used
Using the activity coefficient method – this is the approach employed in the ASPEN training software for NRTL-RK Daqing Jinqiao
I support using the NRTL-RK equation, as it should be quite accurate; however, for the azeotropic distillation of ethanol and water, benzene is used as the azeotrope agent.