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Main Title: Towards demand-side management of the chlor-alkali electrolysis: Dynamic, pressure-driven modeling and model validation of the 1,2-dichloroethane synthesis
Author(s): Hoffmann, Christian
Weigert, Joris
Esche, Erik
Repke, Jens-Uwe
Type: Article
Language Code: en
Abstract: A promising application of demand-side management is the chlor-alkali electrolysis. However, storing the produced chlorine for flexibility should be avoided whenever possible. If PVC is produced from chlorine, storing the intermediate 1,2-dichloroethane resulting from direct chlorination of ethene is a better alternative as it is less toxic than chlorine and can be easily stored. Currently, no dynamic process models to study the process behavior or to develop optimal trajectories for the 1,2-dichloroethane production under different demand response scenarios are available. Hence, we formulate and solve a dynamic, pressure-driven model of the synthesis of 1,2-dichloroethane and validate it with real process data in this contribution. As part of this dynamic model, differentiable formulations for weeping and the flow over a weir of a distillation tray are presented, which are also valid whenever certain trays run dry.
Issue Date: 21-Nov-2019
Date Available: 4-Dec-2019
DDC Class: 660 Chemische Verfahrenstechnik
Subject(s): dynamic pressure-driven modeling
chloralkali electrolysis
ethylene dichloride
plant flexibilization
Sponsor/Funder: BMWi, 0350013A, Verbundvorhaben: ChemEFlex - Umsetzbarkeitsanalyse zur Lastflexibilisierung elektrochemischer Verfahren in der Industrie; Teilvorhaben: Modellierung der Chlor-Alkali-Elektrolyse sowie anderer Prozesse und deren Bewertung hinsichtlich Wirtschaftlichkeit und möglicher Hemmnisse
Journal Title: Chemical Engineering Science
Publisher: Elsevier
Publisher Place: Amsterdam
Article Number: 115358
Publisher DOI: 10.1016/j.ces.2019.115358
EISSN: 1873-4405
ISSN: 0009-2509
Appears in Collections:FG Dynamik und Betrieb technischer Anlagen » Publications

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