Level Control in Distillation Columns
Level Control in Distillation Columns
(OP)
In distillation columns equipped with a kettle reboiler, is it preferable to control the level in the sump or the liquid level in the reboiler.
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Level Control in Distillation Columns
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RE: Level Control in Distillation Columns
RE: Level Control in Distillation Columns
Hi,
You may consider the link above .
Note : You should have posted this query in another activity like process engineering .
My view,
Pierre
RE: Level Control in Distillation Columns
Another arrangement may be where the overflow weir in the kettle is flooded ie all the liquid in the reboiler is at a common level. In this case, it would be preferable to use the level in the kettle for level control, since there may be high dp across the tube bundle in the kettle. This will prevent exposing any tubes in the kettle, which would otherwise result in mechanical failure of the exposed tubes due to differential thermal expansion.
Can you post a diagram of the arrangement in the column bottom and reboiler kettle, with levels and overweirs shown also ?