Development of a novel, through-flow microwave-based regenerator for sorbent-based direct air capture

In this work an all-electric regenerator is developed for the desorption of CO2 from air-capture sorbents using microwaves. An electromagnetic model was made for a continuous flow radial desorber and its dimensions were optimised for maximal microwave utilisation. Based on the optimal dimensions an...

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Autores principales:	T.N. van Schagen, P.J. van der Wal, D.W.F. Brilman
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2022
Materias:	Direct air capture CO2 adsorption Sorbent regeneration Microwave desorption Lewatit VP OC 1065 Chemical engineering TP155-156
Acceso en línea:	https://doaj.org/article/c601080ee1e547d38f116e7426c971fa
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spelling	oai:doaj.org-article:c601080ee1e547d38f116e7426c971fa2021-11-14T04:35:59ZDevelopment of a novel, through-flow microwave-based regenerator for sorbent-based direct air capture2666-821110.1016/j.ceja.2021.100187https://doaj.org/article/c601080ee1e547d38f116e7426c971fa2022-03-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S2666821121001022https://doaj.org/toc/2666-8211In this work an all-electric regenerator is developed for the desorption of CO2 from air-capture sorbents using microwaves. An electromagnetic model was made for a continuous flow radial desorber and its dimensions were optimised for maximal microwave utilisation. Based on the optimal dimensions an actual prototype, capable of desorbing CO2 from a commercial supported amine sorbent in fixed- or moving-bed configuration was built to demonstrate the concept and to study performance characteristics. TSA experiments using nitrogen as purge gas to produce enriched air (1 to 2 vol.% CO2) were done. Productivities of up to 1.5 kgCO2/kgsorb./d were demonstrated, with a total energy duty of 25 MJ/kgCO2. Compared to traditional TVSA desorption, the energy duty is similar while the productivity is significantly higher. The process can be further improved by creating an even more homogeneous electric field (preventing hot spots in the regenerator) and by enabling desorption under vacuum conditions to produce pure CO2. Overall, microwave desorption is demonstrated as an effective way to circumvent heat transfer limitations present during more traditional thermal desorption processes using polymeric sorbents.T.N. van SchagenP.J. van der WalD.W.F. BrilmanElsevierarticleDirect air captureCO2 adsorptionSorbent regenerationMicrowave desorptionLewatit VP OC 1065Chemical engineeringTP155-156ENChemical Engineering Journal Advances, Vol 9, Iss , Pp 100187- (2022)
institution	DOAJ
collection	DOAJ
language	EN
topic	Direct air capture CO2 adsorption Sorbent regeneration Microwave desorption Lewatit VP OC 1065 Chemical engineering TP155-156
spellingShingle	Direct air capture CO2 adsorption Sorbent regeneration Microwave desorption Lewatit VP OC 1065 Chemical engineering TP155-156 T.N. van Schagen P.J. van der Wal D.W.F. Brilman Development of a novel, through-flow microwave-based regenerator for sorbent-based direct air capture
description	In this work an all-electric regenerator is developed for the desorption of CO2 from air-capture sorbents using microwaves. An electromagnetic model was made for a continuous flow radial desorber and its dimensions were optimised for maximal microwave utilisation. Based on the optimal dimensions an actual prototype, capable of desorbing CO2 from a commercial supported amine sorbent in fixed- or moving-bed configuration was built to demonstrate the concept and to study performance characteristics. TSA experiments using nitrogen as purge gas to produce enriched air (1 to 2 vol.% CO2) were done. Productivities of up to 1.5 kgCO2/kgsorb./d were demonstrated, with a total energy duty of 25 MJ/kgCO2. Compared to traditional TVSA desorption, the energy duty is similar while the productivity is significantly higher. The process can be further improved by creating an even more homogeneous electric field (preventing hot spots in the regenerator) and by enabling desorption under vacuum conditions to produce pure CO2. Overall, microwave desorption is demonstrated as an effective way to circumvent heat transfer limitations present during more traditional thermal desorption processes using polymeric sorbents.
format	article
author	T.N. van Schagen P.J. van der Wal D.W.F. Brilman
author_facet	T.N. van Schagen P.J. van der Wal D.W.F. Brilman
author_sort	T.N. van Schagen
title	Development of a novel, through-flow microwave-based regenerator for sorbent-based direct air capture
title_short	Development of a novel, through-flow microwave-based regenerator for sorbent-based direct air capture
title_full	Development of a novel, through-flow microwave-based regenerator for sorbent-based direct air capture
title_fullStr	Development of a novel, through-flow microwave-based regenerator for sorbent-based direct air capture
title_full_unstemmed	Development of a novel, through-flow microwave-based regenerator for sorbent-based direct air capture
title_sort	development of a novel, through-flow microwave-based regenerator for sorbent-based direct air capture
publisher	Elsevier
publishDate	2022
url	https://doaj.org/article/c601080ee1e547d38f116e7426c971fa
work_keys_str_mv	AT tnvanschagen developmentofanovelthroughflowmicrowavebasedregeneratorforsorbentbaseddirectaircapture AT pjvanderwal developmentofanovelthroughflowmicrowavebasedregeneratorforsorbentbaseddirectaircapture AT dwfbrilman developmentofanovelthroughflowmicrowavebasedregeneratorforsorbentbaseddirectaircapture
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Development of a novel, through-flow microwave-based regenerator for sorbent-based direct air capture

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