Does a plate distillation column need a gas distributor for the gas returning from the reboiler?
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All the information I found relates to packed towers; I’m not sure if this is applicable to plate towers as well
It’s not necessary, but the return port is usually made by inserting a horizontal pipe at a 45-degree angle downward, or with a seal at the top and a groove at the bottom.
If the tower diameter is large, the bottom plate functions as a distributor, and the efficiency of this plate is very low
Are there any plate columns at the site equipped with gas distributors?
I’ve never seen a gas distributor at the bottom of a plate tower~~
Why does it still show as unread even though it has been read?
It is necessary, especially for vacuum distillation columns; otherwise, if the gas velocity in the column is too high, the trays can easily be overturned, and we have encountered this problem before.
It is generally small; it is necessary to ensure that the distance between the vapor return port of the reboiler and the tray is not too close.
It’s not necessary; the gas can be fed directly into the tower at a 45-degree angle. Alternatively, a straight pipe can be used, with a square groove cut into it; the area of this groove should be larger than the diameter of the pipe. The purpose of providing square grooves at the bottom of the straight tubes is to prevent plate impact; generally, the pressure of the gas coming out of the reboiler has already been reduced, and it is not direct steam.