Continuous distillation of methanol in two columns
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We are planning to conduct a pilot test for continuous double-column distillation of methanol. May I ask whether the material should be fed into the columns using pumps, or via liquid level or pressure?
It’s better to pump it in, right?! The first tower is fed using a pump, while the second tower can be fed using the pressure from the first one
Pilot-scale quantities are generally very small, so it is better to use a high-level tank. But this also depends on the operating pressure of your tower; if the operating pressure is a few kilograms, then the height of the head tank would be excessive, and a pump would be necessary.
What is the operating pressure of the distillation tower? If it is a atmospheric pressure tower, feeding from a head tank will suffice.
Feed it in with a pump! The first tower is fed using a pump, while for the second tower it depends on the situation: if the pressure is not high, a sump can be used; if the pressure is high, a pump is necessary
At atmospheric pressure, could flow rate be unstable with a head tank? Continuous distillation requires a stable feed rate