For a distillation column with an inner diameter of 200 mm and an effective height of 2500 mm, should a packed column or a plate column be used?
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For a distillation column with an inner diameter of 200 mm and an effective height of 2500 mm, is it better to choose a packed column or a plate column? Which type of tower has a higher efficiency? (Using the most efficient packing and the most efficient tray)
Only a packed tower can be selected. A plate tower is chosen; people cannot enter it, so the tray plates cannot be installed.
Plate towers can be constructed as multiple tower sections connected by flanges, eliminating the need for people to enter inside
This also needs to be considered in conjunction with the medium and operating conditions; a high tower efficiency alone is not sufficient to meet the engineering requirements
A diameter of 200 mm generally requires the use of a packed tower； Except for systems with particularly dirty and clogged conditions, it generally meets the requirements for processing capacity and separation efficiency better than plate towers. Plate towers can also be made with small diameters; integral sieve trays with a minimum diameter of around 300 mm can be installed by connecting them together using spacers. The main limitation of plate towers with small diameters lies in the size of the mass transfer units. Consider that the diameter of a conventional floating valve is 39 mm; moreover, plate towers require downcomers, which take up additional space. As a result, only a limited number of mass transfer units can be installed, and the separation efficiency cannot be guaranteed.
It is recommended to use a packed tower; however, it is difficult to determine whether packed towers or tray towers are superior, as the nature of the material system is unknown. In terms of ease of equipment fabrication and cost, packed towers with a capacity of 200 units are simpler to manufacture and less costly.
It is recommended to use a packed tower, provided it is selected correctly.
A packed tower is definitely the choice; a plate tower simply cannot be installed
Sure, if you want a plate tower, I have ways to provide one as well, provided you have enough money~~~:lol
For a diameter of 200 mm, a packed tower is recommended; if the material is not too dirty, high-efficiency packing can achieve high separation efficiency with low pressure drop； Today, efficient bulk packing materials can achieve a separation efficiency of over 30 units per meter.
In fact, the choice depends on the actual conditions of your application as well as factors such as cost. Of course, since the cost of small towers is lower, this issue may not need to be given much consideration. But what’s most important is to determine what performance requirements need to be met, such as pressure drop and mass transfer efficiency. Plate towers have high resistance, which increases energy consumption. Additionally, since the diameter of your tower is small, installing plate towers might be rather troublesome. Therefore, it seems that packed towers would be more convenient in this case. If regular packing is used at a height of 2.5 meters, a liquid redistributor is not really necessary. Just my opinion!