What is the function of the reboiler in a distillation tower?
Thread Content
What is the function of the reboiler in a distillation tower?
Provide a heat source at the bottom of the tower to ensure the product
Heat the liquid to produce rising steam
It’s just reheating the cooled liquid to vaporize it again
My entire distillation system provides the heat source (the site for heat exchange)
Generally, a pump is used for circulation, which allows the material to be heated instantaneously as it flows, thereby providing sufficient evaporation volume for the system.
Heating at the bottom of the tower to supply the gas phase in the tower
It provides the amount of rising vapor inside the tower, thereby enabling mass and heat transfer.
What the original poster might be referring to is the base of the tower, where, in addition to steam heating, other high-temperature materials serve as heat sources. In fact, in chemical process design, some towers are heated by dual heat sources; in addition to the heat provided for heat exchange with the material, there is also a steam reboiler that serves to regulate the total heat at the bottom of the tower.
There are mainly two functions: 1. Heating the oil at the bottom of the tower to boiling point, thereby generating a vapor phase that rises inside the tower. 2. Equivalent to one theoretical tray (a 100% ideal tray).