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dc.contributor.author
Sternberg, André D.
dc.contributor.author
Bardow, André
dc.date.accessioned
2020-07-22T08:28:21Z
dc.date.available
2020-07-20T12:02:47Z
dc.date.available
2020-07-22T08:09:56Z
dc.date.available
2020-07-22T08:28:21Z
dc.date.issued
2016-08-01
dc.identifier.issn
2168-0485
dc.identifier.other
10.1021/acssuschemeng.6b00644
en_US
dc.identifier.uri
http://hdl.handle.net/20.500.11850/427345
dc.description.abstract
Power-to-Gas enables the integration of renewable electricity and carbon into the chemical industry. The electricity is used to produce hydrogen, which is subsequently converted with CO2 as the renewable carbon source. The resulting products can be used as feedstock for the chemical industry replacing current fossil-based feedstock. Because the integration of renewable electricity and carbon into the chemical industry is mainly environmentally motivated, we identify the conditions under which Power-to-Gas pathways are environmentally beneficial. The conditions are expressed as environmental threshold values for electricity supply. The threshold values are derived by a comparative life cycle assessment (LCA) of Power-to-Gas pathways to fossil-based processes. We analyze Power-to-Gas pathways to synthetic natural gas (Power-to-SNG) and to syngas (Power-to-Syngas). SNG is produced by the Sabatier reaction; syngas by reverse water gas shift (rWGS) and dry reforming of methane (DRM). The threshold values for electricity supply allow us to compare the environmental benefit of Power-to-SNG and Power-to-Syngas on an equal basis: how well they utilize the currently limited renewable electricity. Syngas production by the DRM process has the largest environmental potential. Both Power-to-Syngas pathways lead to larger environmental benefits than Power-to-SNG making syngas the more desirable product than methane as long as renewable electricity is limited.
en_US
dc.language.iso
en
en_US
dc.publisher
American Chemical Society
en_US
dc.subject
LCA
en_US
dc.subject
CO2 utilization
en_US
dc.subject
Reverse water gas shift
en_US
dc.subject
Dry reforming of methane
en_US
dc.subject
CO2 methanation
en_US
dc.subject
Steam-methane-reforming
en_US
dc.subject
Power-to-Gas
en_US
dc.title
Life Cycle Assessment of Power-to-Gas: Syngas vs Methane
en_US
dc.type
Journal Article
dc.date.published
2016-07-11
ethz.journal.title
ACS Sustainable Chemistry & Engineering
ethz.journal.volume
4
en_US
ethz.journal.issue
8
en_US
ethz.journal.abbreviated
ACS Sustainable Chem. Eng. Note
ethz.pages.start
4156
en_US
ethz.pages.end
4165
en_US
ethz.identifier.wos
ethz.identifier.scopus
ethz.publication.place
Washington, DC
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
2020-07-20T12:02:55Z
ethz.source
BATCH
ethz.eth
no
en_US
ethz.availability
Metadata only
en_US
ethz.rosetta.installDate
2020-07-22T08:10:08Z
ethz.rosetta.lastUpdated
2021-02-15T15:36:31Z
ethz.rosetta.exportRequired
true
ethz.rosetta.versionExported
true
ethz.COinS
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