I’m asking: since the column for p-xylene uses a packed column, what is the difference between this and a tray column? Is there any relevant information available?
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The tower used for p-xylene is a packed tower; what is the difference between this and a tray tower? Is there any information on this? Can a packed tower be used in water-cooled systems?
The packing technical specification usually specifies the theoretical number of theoretical plates for the packing; this serves as a link between the packed tower and the tray tower, and based on this value, it is possible to calculate the height of the tray tower； Additionally, you need to pay attention to the packing resistance specified in the technical specifications, that is, the design pressure drop of the packing tower ； Packed towers must participate in the water commissioning.
Is there any difference in operation between that and a tray tower?
Similarly, it is necessary to pay attention to parameters such as the pressure drop in the tower, tower pressure, temperature, and reflux ratio. If the number of theoretical plates based on the packing design is high, the operational flexibility is relatively low, so care must be taken during operation; nothing else is significant.