The calculation of exhaust volume in distillation column design
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I am currently designing a distillation tower, with the first stage of condensation being cooled by water and the second stage by chilled brine. Is there any empirical formula available to determine the amount of vapor that enters the second stage condenser in typical design practices? (Even when classifying according to the properties of the materials, how is the amount of volatile and non-volatile substances generally determined?) ) :) As for the secondary tail cooler, when it can no longer cool further, air is usually the main factor at play; however, there are still certain amounts of non-condensable organic gases. How can this amount be estimated? Next, an environmental protection treatment device needs to be selected; also, is there a better way to calculate this situation? I hope the teachers can provide some guidance. Thank you, it’s really urgent :)
It depends on the components; understanding the process medium inside the tower might be a bit helpful
Are there any experience ratios or something like that? Are there any other good methods as well?
The original poster can use Aspen for calculation. (HYSYS, PROII are both acceptable)
No, the boiling point is determined based on components, pressure, temperature, and several other parameters. We can just do a simulation for this! It's very simple
How is Aspen calculated? The poster wants to calculate the amount of volatile exhaust gases; simulation software defaults to assuming that everything condenses
20-30% of the total amount can be taken to ensure greater reliability; steam condensation has little relation to flow rate.