Calculation of the heat exchange area of a reboiler
Thread Content
I have designed a distillation tower, but I’m still unsure about the reboiler; I would appreciate some guidance from those with more experience. F=4105.7 mol/h, D=3278.2 mol/h, w=827.5 mol/h, R=0.654. Feed at a bubble point, reflux on cold nights. The reboiler is intended to be made of carbon steel. Steam heating. Could someone please advise on how to calculate the heat exchange area? Thank you! Propylene carbonate 1,2-propanediol: Feed F = 0.214856263110.78514373689; Tower bottom outlet W = 0.950.05; Tower top outlet D = 0.02920.9708
The temperature at which each component changes, as well as its physical properties, have not been provided, making it difficult to carry out calculations.
Reply to 2# wdh2010: The feed temperature is 193 degrees, and the reboiler is heated with steam at 250 degrees to reach a temperature of 240 degrees. There are 21 trays in total, with feeding at the 9th tray. Please give me some advice.
Aren’t these data enough? I remember that the heat of vaporization of that tower bottom liquid is also required, which is the heat of vaporization multiplied by the amount of evaporation.