“…Different system identification approaches have already been extensively applied in the case of distillation columns [8±11] and compared in the literature [12,13]. However, most were done either in a simulation context [10±13] or on a pilot plant [9,14,15]; only a few real applications have been reported so far [8,16,17]. The aim of this paper is not to present a new process identification method, but to describe the results of the practical application to an industrial binary distillation column of the classical black-box model identification methodology.…”