Hello, I would like to ask how the energy consumption of the azeotrope changes when the number of distillation tower plates increases under the same separation purity?
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Who is right? Also, is the 40-meter-high tower for separating paraxylene high?
Less unless the heat of vaporization is extremely pressure sensitive
Theoretically speaking, the number of theoretical trays increases, the reflux ratio decreases, and less heat is removed from the system. From the perspective of energy conservation, the heat load of the reboiler decreases.； But in fact, as the trays increase, the tower height becomes larger, and the system heat dissipation becomes larger, the heat load will increase instead, and the pressure at the bottom of the tower will increase, which will lead to an increase in the power consumption of the feed pump. This is why the number of trays in the actual industry is close to the theoretical number of trays.