Publication: Power-to-Syngas: A Parareal Optimal Control Approach
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Power-to-Syngas: A Parareal Optimal Control Approach

- Article in a journal -
 

Area
Chemistry

Author(s)
Andrea Maggi , Dominik Garmatter , Sebastian Sager , Martin Stoll , Kai Sundmacher

Published in
Frontiers in Energy Research

Year
2021

Abstract
A chemical plant layout for the production of syngas from renewable power, H2O and biogas, is presented to ensure a steady productivity of syngas with a constant H2-to-CO ratio under time-dependent electricity provision. An electrolyzer supplies H2 to the reverse water-gas shift reactor. The system compensates for a drop in electricity supply by gradually operating a tri-reforming reactor, fed with pure O2 directly from the electrolyzer or from an intermediate generic buffering device. After the introduction of modeling assumptions and governing equations, suitable reactor parameters are identified. Finally, two optimal control problems are investigated, where computationally expensive model evaluations are lifted viaparareal and necessary objective derivatives are calculated via the continuous adjoint method. For the first time, modeling, simulation, and optimal control are applied to a combination of the reverse water-gas shift and tri-reforming reactor, exploring a promising pathway in the conversion of renewable power into chemicals.

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ADiMat

BibTeX
@ARTICLE{
         Maggi2021PtS,
       author = "Maggi, Andrea and Garmatter, Dominik and Sager, Sebastian and Stoll, Martin and
         Sundmacher, Kai",
       title = "Power-to-Syngas: A Parareal Optimal Control Approach",
       journal = "Frontiers in Energy Research",
       volume = "9",
       year = "2021",
       url = "https://www.frontiersin.org/article/10.3389/fenrg.2021.720489",
       doi = "10.3389/fenrg.2021.720489",
       issn = "2296-598X",
       abstract = "A chemical plant layout for the production of syngas from renewable power,
         H<sub>2</sub>O and biogas, is presented to ensure a steady productivity of syngas with a
         constant H<sub>2</sub>-to-CO ratio under time-dependent electricity provision. An
         electrolyzer supplies H<sub>2</sub> to the reverse water-gas shift reactor. The system
         compensates for a drop in electricity supply by gradually operating a tri-reforming reactor, fed
         with pure O<sub>2</sub> directly from the electrolyzer or from an intermediate generic
         buffering device. After the introduction of modeling assumptions and governing equations, suitable
         reactor parameters are identified. Finally, two optimal control problems are investigated, where
         computationally expensive model evaluations are lifted
         via<monospace>parareal</monospace> and necessary objective derivatives are calculated
         via the continuous adjoint method. For the first time, modeling, simulation, and optimal control are
         applied to a combination of the reverse water-gas shift and tri-reforming reactor, exploring a
         promising pathway in the conversion of renewable power into chemicals.",
       ad_area = "Chemistry",
       ad_tools = "ADiMat"
}


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