【MTBE】MTBE thermal bypass
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This post was last edited by Xiao Gong 1985 on 2016-4-10 at 14:27. When the pressure at the top of the catalytic distillation column in an MTBE plant is controlled via thermal bypass, is it required that the pressure in the top reflux tank be higher than that in the heat exchanger? If so, by how much?
Ours is about seven or eight meters tall; the heat exchanger is located at the bottom. It’s the largest heat exchanger in the entire facility. The return tank is on the second-level platform
1. The condenser is located below the reflux tank and is designed for subcooling. 2. The difference between the two pressures must not be greater than: (pressure at the top of the tower – saturated vapor pressure of the subcooled liquid); otherwise, when the subcooled liquid returns to the reflux tank, it will flash. 3. If the subcooling is sufficient, the condenser can be located on the ground floor, resulting in higher equipment costs.
Thank you so much; I never knew before how to determine the most appropriate height
May I ask where I can find information like this? I would like to learn about this area systematically