Distillation pressure and reboiler load
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Generally, as the distillation pressure increases, the relative volatility of the components decreases. For the same separation task, the reflux ratio rises, resulting in increased energy consumption at both the bottom and top of the tower. However, as the distillation pressure increases, the vaporization latent heat of the components decreases. Is it possible that, under certain conditions, even though the amount of vaporization inside the tower increases, the load on the reboiler at the bottom of the tower may decrease due to this reduced vaporization latent heat?
This question can be verified using simulation software~
This question can be verified using simulation software~