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dc.contributor.author
von der Assen, Niklas
dc.contributor.author
Jung, Johannes
dc.contributor.author
Bardow, André
dc.date.accessioned
2020-07-22T08:26:41Z
dc.date.available
2020-07-20T12:23:05Z
dc.date.available
2020-07-22T07:37:12Z
dc.date.available
2020-07-22T08:26:41Z
dc.date.issued
2013-09-01
dc.identifier.issn
1754-5692
dc.identifier.issn
1754-5706
dc.identifier.other
10.1039/C3EE41151F
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/427429
dc.description.abstract
Carbon dioxide (CO2) capture and utilization (CCU) aims at reducing both greenhouse-gas emissions and fossil-resource depletion. Assessment of these aims requires quantitative environmental evaluation. So far, evaluation of CCU is based on ad hoc criteria such as the amount of CO2 utilized, simplified CO2 balances or CO2 storage duration. Albeit these criteria may be useful for very early stages of potential research pathways, we show that they are insufficient as basis for decisions on implementations and that they may lead to even qualitatively wrong environmental evaluation of CCU. Therefore, a holistic evaluation using life-cycle assessment (LCA) is mandatory. However, the application of LCA to CCU is subject to methodological pitfalls: (i) utilized CO2 might intuitively be considered as negative GHG emissions; (ii) since CCU usually generates products both in the capture and in the utilization process, choices exist how to allocate emissions to the individual products and (iii) CO2 storage duration is not reflected in traditional LCA. To avoid the existing pitfalls, we provide a systematic framework for LCA of CCU in which (i) the utilized CO2 is correctly considered as regular feedstock with its own production emissions; (ii) recommendations for obtaining product-specific LCA results for CCU processes are given and (iii) the CO2 storage duration is incorporated into a time-resolved global warming metric. The developed framework is illustrated by simplified LCA of CO2 capture from the atmosphere and from coal power plants, and of CO2 utilization for methanol and polymer production. Overall, the presented framework allows for the sound environmental evaluation of CCU.
en_US
dc.language.iso
en
en_US
dc.publisher
Royal Society of Chemistry
en_US
dc.title
Life-Cycle Assessment of Carbon Dioxide Capture and Utilization: Avoiding the Pitfalls
en_US
dc.type
Journal Article
dc.date.published
2013-07-02
ethz.journal.title
Energy & Environmental Science
ethz.journal.volume
6
en_US
ethz.journal.issue
9
en_US
ethz.journal.abbreviated
Energy Environ. Sci.
ethz.pages.start
2721
en_US
ethz.pages.end
2734
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
Cambridge
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::09696 - Bardow, André / Bardow, André
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::09696 - Bardow, André / Bardow, André
en_US
ethz.date.deposited
2020-07-20T12:23:13Z
ethz.source
BATCH
ethz.eth
no
en_US
ethz.availability
Metadata only
en_US
ethz.rosetta.installDate
2020-07-22T07:37:23Z
ethz.rosetta.lastUpdated
2021-02-15T15:36:35Z
ethz.rosetta.versionExported
true
ethz.COinS
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