How should the top and bottom pressures of a distillation column be determined?
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How should the pressures at the top and bottom of a distillation column be determined? What is the general approach used in practice? I would appreciate advice from those with more experience! This post was last edited by brainandrain on 2009-4-6 at 18:19
First, assume a pressure and use software to calculate the actual operating conditions； Then, take the high and low pressures separately, calculate their operating conditions, and based on a comparison of the three, determine the pressure range to which it belongs ； Two pressures are selected within the range, and their operating conditions are calculated; by comparing these three values, the pressure range to which it belongs is determined... until the pressure reaches the desired accuracy level, at which point the calculation is completed, and this pressure value is taken as the tower pressure: victory:
Thank you for the advice; it’s very informative. In the past, we would simply go to the factory, measure the two pressures, and then carry out the calculations.