Distillation column height
Thread Content
Has anyone ever designed a packed distillation column with a tower diameter of only 300 mm but a tower height of over 10 meters? Is such a tower reasonably designed?
“The tower diameter is only 300 mm, while the height is over 10 meters. A diameter of this size has not been used in such designs before. However, the issue raised by the original poster may stem from the fact that the process requirements involve a low volume of material to be processed, but high precision is required for the products; hence such a structure was proposed. I consider this unreasonable for the following reasons: First, the tower diameter is too small, resulting in a height-to-diameter ratio of 33. This makes the manufacturing of such a tower extremely difficult, and if not handled properly, it might develop twisting deformities before completion (due to the release of manufacturing stresses)； Secondly, the installation requirements are too high. It is better to install it directly inside the device or within a frame; if it is installed outdoors, additional frames may be needed to ensure the safe operation of the tower, which increases the cost ； Third, if it is solely for product requirements, such issues can be resolved through other methods like secondary distillation, which would result in lower overall costs. (For reference only :) )
This structure should be feasible. 10 meters is not very high, and supporting a tower with a diameter of 300 is also simple.
The small tower I’ve seen has a diameter of 30 mm and a height of 4 m; I don’t think the length-to-diameter ratio of such a tower is a significant issue.
We have distillation columns here with a diameter of 300 and 500 mm and a height of about 20 meters; 10 meters in height is nothing
The key is efficiency. With such a small tower diameter, a distributor cannot be installed. A 10-meter-tall tower definitely can’t do without a distributor. Moreover, ensuring the stability of the tower once it is erected is also a problem.
Isn’t this height-to-diameter ratio a bit high? Is this a distillation tower? The estimated efficiency for distillation isn’t very high. It probably isn’t cost-effective. Installing the tower isn’t a problem; support structures for the equipment can be built on the floor at that time.
I haven’t designed it before, and in my opinion this design is unreasonable – the length-to-diameter ratio is too large; protection for this tower is a serious issue
I would like to ask whether this height is calculated
It’s quite normal; it’s not high. The diameter of the distillation tower we designed is 400, and its height is over 20 meters. That’s the case for alcohol distillation towers as well – the tower diameter determines the production capacity, while the height is determined by the concentration of alcohol.