Steady State and Dynamic Operation of Four-Product Dividing-Wall (Kaibel) Columns: Experimental Verification

Control and operation of energy-efficient dividing-wall columns can be challenging. This paper demonstrates experimentally the start-up and steady state operation of a four-product Kaibel column separating methanol, ethanol, propanol, and n-butanol. We use a control structure with four temperature c...

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Bibliographic Details
Published inIndustrial & engineering chemistry research Vol. 51; no. 48; pp. 15696 - 15709
Main Authors Dwivedi, Deeptanshu, Strandberg, Jens P, Halvorsen, Ivar J, Skogestad, Sigurd
Format Journal Article
LanguageEnglish
Published Washington, DC American Chemical Society 05.12.2012
Subjects
Applied sciences
Chemical engineering
Controllers
Disturbances
Ethanol
Ethyl alcohol
Exact sciences and technology
Feed rate
Industrial engineering
Methyl alcohol
Steady state
Steady state
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Summary:Control and operation of energy-efficient dividing-wall columns can be challenging. This paper demonstrates experimentally the start-up and steady state operation of a four-product Kaibel column separating methanol, ethanol, propanol, and n-butanol. We use a control structure with four temperature controllers and show that it can handle feed rate disturbances as well as set point changes. The experiments compare well with an equilibrium stage model.
Bibliography:ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
content type line 23
ISSN:0888-5885
1520-5045
DOI:10.1021/ie301432z