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Life cycle assessment of a farmed wood butanol-gasoline blend as an alternative transport fuel for passenger cars

Feinauer, Mario and Ehrenberger, Simone and Buchgeister, Jens (2021) Life cycle assessment of a farmed wood butanol-gasoline blend as an alternative transport fuel for passenger cars. Fuel – The Science and Technology of Fuel and Energy, 306, p. 121651. Elsevier. doi: 10.1016/j.fuel.2021.121651. ISSN 0016-2361.

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The objective of this study is to investigate the environmental profile of farmed pine wood butanol blended with gasoline in a volumetric ratio of 30% and to compare the results with neat gasoline as a fossil reference fuel. To this end, the well-to-wheel approach has been chosen as it encompasses the entire fuel life cycle, i.e. the total fuel production chain including fuel use in the vehicle, while the vehicle manufacturing and infrastructure-related processes are excluded. The well-to-wheel analysis focuses on the biochemical production path in Germany for the years 2018 and 2040, considering different electricity generation mixes for the butanol production process and different fuel consumption and emission factors from passenger car operation in both years. The results, based on 16 midpoint impact categories of the ILCD2.0 life cycle impact assessment method, show that for the total fuel production and use stage, the butanol-gasoline blend has a higher environmental impact than the reference fuel. The main processes causing environmental impacts can be identified in the fuel production and related upstream stages. Regarding the use stage of the fuels, the butanol-gasoline blend reveals lower environmental impacts than the fossil gasoline reference fuel, as the biofuel blend reduces several tailpipe emission components like particulate matter. However, these reductions do not mitigate the total well-to-wheel impacts compared to fossil gasoline because fuel production and its upstream processes have a more significant impact. The analysis closes by highlighting several measures with a strong potential to improve the total environmental profile of the butanol-gasoline blend.

Item URL in elib:https://elib.dlr.de/143680/
Document Type:Article
Title:Life cycle assessment of a farmed wood butanol-gasoline blend as an alternative transport fuel for passenger cars
AuthorsInstitution or Email of AuthorsAuthor's ORCID iD
Feinauer, MarioMario.Feinauer (at) dlr.deUNSPECIFIED
Ehrenberger, SimoneSimone.Ehrenberger (at) dlr.dehttps://orcid.org/0000-0002-2148-5129
Date:15 December 2021
Journal or Publication Title:Fuel – The Science and Technology of Fuel and Energy
Refereed publication:Yes
Open Access:No
Gold Open Access:No
In ISI Web of Science:Yes
DOI :10.1016/j.fuel.2021.121651
Page Range:p. 121651
Keywords:Life cycle assessment; Butanol; Biochemical production; Well-to-wheel analysis; ABE fermentation; Biofuels
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Transport
HGF - Program Themes:Road Transport
DLR - Research area:Transport
DLR - Program:V ST Straßenverkehr
DLR - Research theme (Project):V - Future Fuels, V - Energie und Verkehr
Location: Stuttgart
Institutes and Institutions:Institute of Vehicle Concepts > Fahrzeugsysteme und Technologiebewertung
Deposited By: Feinauer, Mario
Deposited On:11 Oct 2021 13:42
Last Modified:11 Oct 2021 13:42

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