For diethyl ether vapor at around 140 degrees Celsius, after being condensed using a secondary condenser, where is the gas phase located?
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For dichloroethane vapor at around 140 degrees Celsius, after being condensed by a secondary condenser, does the non-condensable gas exit only through the primary condenser, or does it exit from both the primary and secondary condensers, or only from the secondary condenser? Graphite heat exchangers are used, with the first stage cooled by circulating water and the second stage cooled by deep chilled water.
Only those at the secondary stage; those at the primary stage that have not been cooled are then cooled at the secondary stage, and only those that cannot be cooled at the secondary stage are non-condensable gases
So you mean that no non-condensable gas is discharged from the primary condenser? ?
May I ask if the non-condensable gases in the primary condenser, along with the primary condensate, can be fed into the secondary condenser? ? ? As shown in the figure below:
It depends on how much you have; if there’s too much, it turns into a two-phase flow, and the calculations become very complex.
The amount won’t be very large; it’s mainly the saturated vapor pressure
Then try simulating it with Aspen and htri.
We can discuss the issues related to condensers; we are a manufacturer of perfluorinated tube condensers