Explore the solution of the following problem
Problem-Two distillations columns in series are used to separate 100 mol/min of an equimolar BTX stream (benzene, toluene, and xylene). The bottom product of the first column contains no B and 90% X. 80% of the X fed to the process is in this bottom stream. The overhead product is fed to the second distillation column. The distillate from the second column contains 90% B and no T. 90% of the B fed to the process is in this distillate.
Part 1- Use the systematic procedure to determine all unknown molar flow rates and compositions.
I need help to explain the systematic procedure.