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Energy balance and global warming potential of biogas-based fuels from a life cycle perspective
SLU Swedish University of Agricultural Sciences, Sweden.
SLU Swedish University of Agricultural Sciences, Sweden.
Lund University, Sweden.
RISE, SP – Sveriges Tekniska Forskningsinstitut, JTI Institutet för Jordbruks- och Miljöteknik. SLU Swedish University of Agricultural Sciences, Sweden.ORCID iD: 0000-0002-1662-9730
2015 (English)In: Fuel processing technology, ISSN 0378-3820, E-ISSN 1873-7188, Vol. 132, p. 74-82Article in journal (Refereed) Published
Abstract [en]

Biogas is a multifunctional energy carrier currently used for co-generation or compressed biomethane as vehicle fuel. Gas-to-liquid (GTL) technology enables conversion of biogas into other energy carriers with higher energy density, facilitating fuel distribution.

The energy efficiency and global warming potential (GWP) for conversion of biogas to compressed biogas (CBG), liquefied biogas (LBG), Fischer–Tropsch diesel (FTD), methanol and dimethyl ether (DME) were studied in a life cycle perspective covering the technical system from raw biogas to use in city buses.

CBG, methanol and DME showed the best specific fuel productivity. However, when fuel distribution distances were longer, DME, LBG and methanol showed the best energy balance. Methanol, FTD and DME emitted half the GWP of LBG and CBG. Choice of electricity mix had a large impact on GWP performance. Overall, taking into account the different impact categories, combustion properties and fuel yield from raw biogas, DME showed the best performance of the fuel conversion scenarios assessed.

Place, publisher, year, edition, pages
2015. Vol. 132, p. 74-82
Keywords [en]
Biogas, GTL fuels, LCA, Energy performance, Global warming potential
National Category
Agricultural Science, Forestry and Fisheries
Identifiers
URN: urn:nbn:se:ri:diva-2389DOI: 10.1016/j.fuproc.2014.12.014OAI: oai:DiVA.org:ri-2389DiVA, id: diva2:959978
Available from: 2016-09-07 Created: 2016-09-07 Last updated: 2019-07-03Bibliographically approved

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Nordberg, Åke

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