Why does water in the stable slurry reflux zone cause an increase in column pressure?
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The temperature at the top of the stabilizer is generally around 50-60 degrees; theoretically, water should be in a liquid state at that level. So why does the pressure rise so rapidly in order to stabilize it? Let’s discuss it together
It’s simple: when water is heated, it expands and undergoes a phase change, resulting in an increase in volume. Don’t focus on the top temperature; instead, pay attention to the bottom temperature According to what you said, with the top temperature at 50-60 degrees Celsius, the bottom temperature of your distillation tower should be above 180°C!
The volume ratio of water to steam is around 1:1000; even a small amount of water can cause significant fluctuations in the pressure of the stabilizer tower.
Water has a high heat absorption capacity, which affects the bottom water temperature; therefore, it is necessary to enhance the dehydration process in the recirculation tank
The temperature at the top will not cause vaporization; once it drops to a level at the lower trays where vaporization is possible, significant evaporation occurs, leading to an increase in pressure at the top of the tower.