Abstract: A new plate-to-plate method for performanceprediction of azeotropic distillation processes isdeveloped.Azeotropic distillation is character-ized by the strong interaction among componentsand by a samll number of components involved.By plate-to-plate method,the number of intera-rive variables depends only on the number ofcomponents,therefore a combination of theplate-to-plate approach and the Newton