Why can’t the distillation column converge?
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When establishing the material flow diagram for a distillation column with side streams and no design specifications have been entered yet, the calculations cannot converge. Why? Will it still be all red no matter what settings are entered?
I’ve also just started learning PROII not long ago, and my simulations of towers often fail to converge. Let’s wait together for someone more experienced to give us some advice. . . . . .
Blue is the best. Generally, a tower requires 2 constraints; one additional constraint is added for each side stream, in accordance with the principle of degrees of freedom. Check it carefully.