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An Extensive Analysis on the Start‐up of a Simple Distillation Column with Multiple Steady States
Author(s) -
Benz Sonia J.,
Scenicolas J.
Publication year - 2002
Publication title -
the canadian journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.404
H-Index - 67
eISSN - 1939-019X
pISSN - 0008-4034
DOI - 10.1002/cjce.5450800510
Subject(s) - transient (computer programming) , distillation , column (typography) , simple (philosophy) , steady state (chemistry) , hysteresis , fractionating column , set (abstract data type) , binary number , computer science , control theory (sociology) , mathematics , chromatography , chemistry , physics , control (management) , artificial intelligence , philosophy , telecommunications , arithmetic , epistemology , frame (networking) , quantum mechanics , programming language , operating system
The impact of start‐up procedures on the behaviour of simple distillation columns with multiple steady states is analyzed. A well‐known system with hysteresis is studied in this paper and transient responses for a binary distillation column yielding different steady states during the start‐up operation are shown. Several dynamic simulation results showing an interesting behaviour are presented. Through the examination of the profile evolutions corresponding to given start‐up policies, it can be seen how the column arrives to different steady states. It is shown that it is possible to identify a set of critical values for the start‐up supervision. Also, guidelines of general validity are achieved with the aim of finding the appropriate start‐up policy to obtain the desired solution.