Controlling C3 content in ASPEN
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In the ASPEN simulation, I need to ensure that the volume percentages of propane, propylene, ethane, ethylene, and methane at the top of the distillation column do not exceed 1.2%. However, it turns out that it is only possible to set a maximum value for the content of a single component (for example, propylene), rather than setting a maximum total content for all these components at 1.2%. Is there any way to solve this issue? ? ? It seems that PRO/2 can easily solve this problem – one just needs to select these components within the component list – but I really can’t find them in ASPEN ? Thank you! !
I think it’s possible to create a design specification in which the amounts of all light components are defined. An expression that represents the sum of all these defined amounts can be entered in the spec field of the specification form; the target value would then be 0.012. This seems like a viable approach – you might want to give it a try.
Well, I agree with what was said on the second floor; the original poster can give it a try!