The density difference between the vapor and liquid phases of the process medium in the reboiler is too small
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The density difference between the vapor and liquid phases of the process fluid in the tower bottom reboiler is only 270 kg/m3; the fluid in question is C1-C4. Are there any cases with similar operating conditions?
In the reboiler at the bottom of the tower, the density difference between the vapor and liquid phases of the process fluid is small; therefore, the driving force requirement can be met by increasing the vaporization rate to reduce the density of the mixed phase, or by raising the height of the tower.
What kind of distillation tower is this? Is c1 at the bottom of the tower? Is there a lighter medium at the top of the tower?
There must be a suitable design; isobutane and n-butane can be separated effectively