I have another question, this time relating to a Separator that is operating at T=115oC. I have a stream entering the separator and it has the following components in these compositions:
K-values for the components at T=115 deg Celcius are:
I want to separate Toluene from Xylene and Ethylbenzene, but by doing so I should have Benzene and Toluene exiting the separator in the vapour phase as Benzene is more volatile than Toluene.
I used a Flash Distillation method to calculate how much components would exit in the vapour and liquid streams. This requires me to guess a L/V value first, then see if the actual L/V value is similar to the one I guessed at first.
However, once i calculated it in Excel, the L/V has to be negative to "converge". Now, does this mean I have made a serious error in my calculations, or that separation using this method is not possible. If not possible, does this mean I have to use a distillation column instead?