Process intensification of solid‐sorbent DAC via a rotating vortex reactor

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Main Authors: Afroditi Kourou, Siyuan Chen, Bing Wang, Geraldine J. Heynderickx, Kevin M. Van Geem, Yi Ouyang
Format: Artículo Open Access
Published: Wiley 2026
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author Afroditi Kourou
Siyuan Chen
Bing Wang
Geraldine J. Heynderickx
Kevin M. Van Geem
Yi Ouyang
author_facet Afroditi Kourou
Siyuan Chen
Bing Wang
Geraldine J. Heynderickx
Kevin M. Van Geem
Yi Ouyang
Afroditi Kourou
Siyuan Chen
Bing Wang
Geraldine J. Heynderickx
Kevin M. Van Geem
Yi Ouyang
collection Wiley Open Access
contents Process intensification of solid‐sorbent DAC via a rotating vortex reactor Afroditi Kourou Siyuan Chen Bing Wang Geraldine J. Heynderickx Kevin M. Van Geem Yi Ouyang AIChE Journal Abstract This work investigates the performance of the rotating vortex reactor (RVR) as a promising intensified contactor for direct air capture (DAC). Both adsorption and desorption are tested across ranges of superficial gas velocities and rotation speeds, thereby tuning the bed regime—packed or fluidized—under a centrifugal force field (known as a high‐gravity condition) and a vortex flow to enhance mass and heat transfer. A cyclic cut‐off analysis further quantifies the contributions of the main energy consumers and clarifies the trade‐offs between productivity and energy demand. The adsorber achieves high volumetric CO 2 capture rates of 7.5–13.5 kgCO 2 /(m 3 ·h), while hot‐air regeneration enables rapid desorption in <10 min. This proof‐of‐concept study shows RVR's potential for process intensification while identifying areas for further improvement in the unit's design and operation to reduce energy demand for DAC. 10.1002/aic.70421 http://onlinelibrary.wiley.com/termsAndConditions#vor
doi_str_mv 10.1002/aic.70421
format Artículo Open Access
id wiley_oa_10_1002_aic_70421
institution Wiley Open Access
license_str_mv http://onlinelibrary.wiley.com/termsAndConditions#vor
publishDate 2026
publisher Wiley
record_format wiley_oa
spellingShingle Process intensification of solid‐sorbent DAC via a rotating vortex reactor
Afroditi Kourou
Siyuan Chen
Bing Wang
Geraldine J. Heynderickx
Kevin M. Van Geem
Yi Ouyang
AIChE Journal
Process intensification of solid‐sorbent DAC via a rotating vortex reactor Afroditi Kourou Siyuan Chen Bing Wang Geraldine J. Heynderickx Kevin M. Van Geem Yi Ouyang AIChE Journal Abstract This work investigates the performance of the rotating vortex reactor (RVR) as a promising intensified contactor for direct air capture (DAC). Both adsorption and desorption are tested across ranges of superficial gas velocities and rotation speeds, thereby tuning the bed regime—packed or fluidized—under a centrifugal force field (known as a high‐gravity condition) and a vortex flow to enhance mass and heat transfer. A cyclic cut‐off analysis further quantifies the contributions of the main energy consumers and clarifies the trade‐offs between productivity and energy demand. The adsorber achieves high volumetric CO 2 capture rates of 7.5–13.5 kgCO 2 /(m 3 ·h), while hot‐air regeneration enables rapid desorption in <10 min. This proof‐of‐concept study shows RVR's potential for process intensification while identifying areas for further improvement in the unit's design and operation to reduce energy demand for DAC. 10.1002/aic.70421 http://onlinelibrary.wiley.com/termsAndConditions#vor
title Process intensification of solid‐sorbent DAC via a rotating vortex reactor
topic AIChE Journal
url https://aiche.onlinelibrary.wiley.com/doi/10.1002/aic.70421