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dc.contributor.author
Stampi-Bombelli, Valentina
dc.contributor.author
van der Spek, Mijndert Willem
dc.contributor.author
Mazzotti, Marco
dc.date.accessioned
2021-12-07T07:53:29Z
dc.date.available
2020-08-27T02:47:46Z
dc.date.available
2020-09-04T09:18:40Z
dc.date.available
2020-10-16T11:41:45Z
dc.date.available
2021-12-07T07:53:29Z
dc.date.issued
2020-10
dc.identifier.issn
0929-5607
dc.identifier.issn
1572-8757
dc.identifier.other
10.1007/s10450-020-00249-w
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/432782
dc.identifier.doi
10.3929/ethz-b-000432782
dc.description.abstract
In this work, direct air capture (DAC) via adsorption is studied through the design and analysis of two temperature-vacuum swing adsorption (TVSA) cycles. In the first part, a novel way of describing the adsorption of CO2 in presence of water vapor is proposed for co-adsorption kinetic and thermodynamic data gathered from the literature. Secondly, two TVSA cycle designs are proposed: one with a desorption step via external heating, and one with a steam purge. A schematic method for the determination of the cycle step times is proposed and a parametric study on the operating conditions is performed via cycle simulations using a detailed, first principles model. Finally, the two cycles are compared in terms of CO2 production and energy consumption. The parametric study on the desorption time shows that there is a desorption time yielding the highest CO2 production at low energy consumptions. Low evacuation pressures are necessary to reach high CO2 production, but higher evacuation pressures show to be always favorable in terms of specific electrical energy requirements. A steam purge requires an additional thermal energy cost, but it not only allows decreasing the specific electrical energy consumptions, it also enhances CO2 desorption kinetics and allows reaching higher CO2 productions at milder evacuation pressures. The results of this work present the possibility to directly relate the availability of power and heat to the design of the cycle.
en_US
dc.format
application/pdf
en_US
dc.language.iso
en
en_US
dc.publisher
Springer
en_US
dc.rights.uri
http://creativecommons.org/licenses/by/4.0/
dc.subject
Direct air capture
en_US
dc.subject
S-TVSA
en_US
dc.subject
Simulations
en_US
dc.subject
Adsorption
en_US
dc.subject
Carbon capture
en_US
dc.subject
Negative emissions technology
en_US
dc.title
Analysis of direct capture of CO2 from ambient air via steam-assisted temperature-vacuum swing adsorption
en_US
dc.type
Journal Article
dc.rights.license
Creative Commons Attribution 4.0 International
dc.date.published
2020-08-11
ethz.journal.title
Adsorption
ethz.journal.volume
26
en_US
ethz.journal.issue
7
en_US
ethz.journal.abbreviated
Adsorption
ethz.pages.start
1183
en_US
ethz.pages.end
1197
en_US
ethz.version.deposit
publishedVersion
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
Dordrecht
en_US
ethz.publication.status
published
en_US
ethz.leitzahl
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02130 - Dep. Maschinenbau und Verfahrenstechnik / Dep. of Mechanical and Process Eng.::02668 - Inst. f. Energie- und Verfahrenstechnik / Inst. Energy and Process Engineering::03484 - Mazzotti, Marco / Mazzotti, Marco
en_US
ethz.leitzahl.certified
ETH Zürich::00002 - ETH Zürich::00012 - Lehre und Forschung::00007 - Departemente::02130 - Dep. Maschinenbau und Verfahrenstechnik / Dep. of Mechanical and Process Eng.::02668 - Inst. f. Energie- und Verfahrenstechnik / Inst. Energy and Process Engineering::03484 - Mazzotti, Marco / Mazzotti, Marco
ethz.relation.isReferencedBy
handle/20.500.11850/518881
ethz.date.deposited
2020-08-27T02:47:51Z
ethz.source
WOS
ethz.eth
yes
en_US
ethz.availability
Open access
en_US
ethz.rosetta.installDate
2020-10-16T11:41:58Z
ethz.rosetta.lastUpdated
2021-02-15T18:25:30Z
ethz.rosetta.exportRequired
true
ethz.rosetta.versionExported
true
ethz.COinS
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