Questions regarding atmospheric and vacuum distillation
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What is the operating pressure of the atmospheric tower? The pressure at the top of our tower is 0.1 MP, while it’s 1.3 MP at the bottom. What are the advantages and disadvantages of this?
Our pressure is 0.03 MPa; yours is too high – a higher operating pressure results in greater power consumption
It’s a bit too high; when the pressure is high, the partial pressure of the light components in the gas phase decreases, which is not favorable for distillation operations. Generally, an operating pressure of 0.02~0.03 MPa at normal pressure is sufficient.
The pressure at the top of the tower is a bit high; the light components cannot rise upward. Pay attention to the dry point of the product at the tower top
The product separation is not good, and atmospheric-pressure containers are prone to problems
Is it too high? We are at 20-40 kPa
It is 0.08 MPa at the bottom of the tower and 0.03 MPa at the top
Our pressure at the top of the tower is 0.03–0.04 MPa; your pressure is too high, which is not conducive to the separation of light components.