extractive distillation.

I am trying to simulate extractive distillation for reformate to extract aromatic using sulfolane solvent.
I've tried NRTL, UNIQUAC, UNIFAC and wilson fluid package
but all are fail to provide exact result. System estimated binary interaction coefficients are not representing true interaction of aromatics and sulfolane.
Can someone help me with benery interaction parameters or some property package model that can be used with Aspenplus?😕😕😕