Dynamic Modeling and Control of a Simulated Carbon Capture Process for Sustainable Power-to-X

The goal of this study is to develop a dynamic model for a Carbon Capture (CC) process that can be integrated with a water electrolysis facility. The possibility of operating the post-combustion CC plant dynamically is investigated. The final model successfully tracks the parallel hydrogen productio...

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Main Authors: Mahmoud Mostafa, Christopher Varela, Meik B. Franke, Edwin Zondervan
Format: Article
Language:English
Published: MDPI AG 2021-10-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/11/20/9574
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author Mahmoud Mostafa
Christopher Varela
Meik B. Franke
Edwin Zondervan
author_facet Mahmoud Mostafa
Christopher Varela
Meik B. Franke
Edwin Zondervan
author_sort Mahmoud Mostafa
collection DOAJ
description The goal of this study is to develop a dynamic model for a Carbon Capture (CC) process that can be integrated with a water electrolysis facility. The possibility of operating the post-combustion CC plant dynamically is investigated. The final model successfully tracks the parallel hydrogen production, providing the stoichiometric required CO<sub>2</sub> stream for the subsequent methanol reactor. A dynamic model is used to configure controllers and to test the unit performance and stream conditions for various set points. Through the transient operation, the required feed gas is provided while optimizing the solvent and energy requirements. It is found that the slowest acting stage is the reboiler with a time constant of 3.8 h. Other process variables stabilize much quicker, requiring only a few minutes to reach steady-state conditions. The hydrogen-tracking scenario shows that the carbon capture plant can successfully operate under varying conditions with a maximum CO<sub>2</sub> output increase of 7% of the minimum flowrate in the representative 24 h simulation time. The output CO<sub>2</sub> stream is maintained at the desired >98% purity, 25 °C temperature, and 1.85 bar pressure, which allows to successfully perform hydrogen tracking operations.
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spelling doaj.art-1bc980e0668344dfae25d73c20dbeaa32023-11-22T17:20:49ZengMDPI AGApplied Sciences2076-34172021-10-011120957410.3390/app11209574Dynamic Modeling and Control of a Simulated Carbon Capture Process for Sustainable Power-to-XMahmoud Mostafa0Christopher Varela1Meik B. Franke2Edwin Zondervan3Laboratory of Process Systems Engineering, University of Bremen, Leobener Str. 6, 28359 Bremen, GermanyLaboratory of Process Systems Engineering, University of Bremen, Leobener Str. 6, 28359 Bremen, GermanyDepartment of Chemical Engineering, Twente University, 7522 NB Enschede, The NetherlandsDepartment of Chemical Engineering, Twente University, 7522 NB Enschede, The NetherlandsThe goal of this study is to develop a dynamic model for a Carbon Capture (CC) process that can be integrated with a water electrolysis facility. The possibility of operating the post-combustion CC plant dynamically is investigated. The final model successfully tracks the parallel hydrogen production, providing the stoichiometric required CO<sub>2</sub> stream for the subsequent methanol reactor. A dynamic model is used to configure controllers and to test the unit performance and stream conditions for various set points. Through the transient operation, the required feed gas is provided while optimizing the solvent and energy requirements. It is found that the slowest acting stage is the reboiler with a time constant of 3.8 h. Other process variables stabilize much quicker, requiring only a few minutes to reach steady-state conditions. The hydrogen-tracking scenario shows that the carbon capture plant can successfully operate under varying conditions with a maximum CO<sub>2</sub> output increase of 7% of the minimum flowrate in the representative 24 h simulation time. The output CO<sub>2</sub> stream is maintained at the desired >98% purity, 25 °C temperature, and 1.85 bar pressure, which allows to successfully perform hydrogen tracking operations.https://www.mdpi.com/2076-3417/11/20/9574Carbon-Captureaminedynamic modelrenewablessimulationAspen Plus<sup>®</sup>
spellingShingle Mahmoud Mostafa
Christopher Varela
Meik B. Franke
Edwin Zondervan
Dynamic Modeling and Control of a Simulated Carbon Capture Process for Sustainable Power-to-X
Applied Sciences
Carbon-Capture
amine
dynamic model
renewables
simulation
Aspen Plus<sup>®</sup>
title Dynamic Modeling and Control of a Simulated Carbon Capture Process for Sustainable Power-to-X
title_full Dynamic Modeling and Control of a Simulated Carbon Capture Process for Sustainable Power-to-X
title_fullStr Dynamic Modeling and Control of a Simulated Carbon Capture Process for Sustainable Power-to-X
title_full_unstemmed Dynamic Modeling and Control of a Simulated Carbon Capture Process for Sustainable Power-to-X
title_short Dynamic Modeling and Control of a Simulated Carbon Capture Process for Sustainable Power-to-X
title_sort dynamic modeling and control of a simulated carbon capture process for sustainable power to x
topic Carbon-Capture
amine
dynamic model
renewables
simulation
Aspen Plus<sup>®</sup>
url https://www.mdpi.com/2076-3417/11/20/9574
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AT edwinzondervan dynamicmodelingandcontrolofasimulatedcarboncaptureprocessforsustainablepowertox