Regarding the design of the tower top air cooling?
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Which locations require full condensation, and which require partial condensation? Is it determined by temperature and pressure, or by the medium? What part of the course is this content from? Thank you!
It’s difficult to answer your question, because it’s not clear which tower it is In the case of a distillation column, it is also necessary to determine whether the component at the top of the column is a single product or a mixture of light components; therefore, it is difficult to come up with an expression. It would be best to draw or describe in detail the components and the structure of the column. Otherwise, it will be necessary to explain the situation in several different scenarios.
I get it roughly; when the condensation temperatures of different components differ significantly, it’s partial condensation, and all that’s needed is to condense the target product； In distillation columns such as those used for separating light and heavy naphtha, the top of the column is where the light naphtha is purified, and air cooling is employed for complete condensation.