Climate performance of liquefied biomethane with carbon dioxide utilization or storage

Gustafsson, Marcus,1987-Linköpings universitet,Industriell miljöteknik,Tekniska fakulteten,Industrial and urban symbiosis (författare)

Funding: Kamprad Family Foundation [20200041]
In the process of upgrading biogas to biomethane for gas grid injection or use as a vehicle fuel, biogenic carbon dioxide (CO₂) is separated and normally emitted to the atmosphere. Meanwhile, there are a number of ways of utilizing CO₂ to reduce the dependency on fossil carbon sources. This article assesses the climate performance of liquefied biomethane for road transport with different options for utilization or storage of CO₂. The analysis is done from a life cycle perspective, covering the required and avoided processes from biogas production to the end use of biomethane and CO₂. The results show that all of the studied options for CO₂ utilization can improve the climate performance of biomethane, in some cases contributing to negative CO₂ emissions. One of the best options, from a climate impact perspective, is to use the CO₂ internally to produce more methane, although continuous supply of hydrogen from renewable sources can be a challenge. Another option that stands out is concrete curing, where CO₂ can both replace conventional steam curing and be stored for a long time in mineral form. Storing CO₂ in geological formations can also lead to negative CO₂ emissions. However, with such long-term storage solutions, opportunities to recycle biogenic CO₂ are lost, together with the possibility of de-fossilizing processes that require carbon, such as chemical production and horticulture.

Cordova, Stephanie,1988-Linköpings universitet,Industriell miljöteknik,Tekniska fakulteten,Industrial and urban symbiosis(Swepub:liu)steco26 (författare)
Svensson, Niclas,1974-Linköpings universitet,Industriell miljöteknik,Tekniska fakulteten,Resurces 2.0(Swepub:liu)nicsv19 (författare)
Eklund, Mats,Professor,1962-Linköpings universitet,Industriell miljöteknik,Tekniska fakulteten,Industrial and urban symbiosis(Swepub:liu)matek57 (författare)
Linköpings universitetIndustriell miljöteknik (creator_code:org_t)

Av författaren/redakt...: Gustafsson, Marc ...; Cordova, Stephan ...; Svensson, Niclas ...; Eklund, Mats, Pr ...

Om ämnet

TEKNIK OCH TEKNOLOGIER: TEKNIK OCH TEKNO ...; och Industriell biot ...; och Bioenergi

TEKNIK OCH TEKNOLOGIER: TEKNIK OCH TEKNO ...; och Industriell biot ...; och Biomaterial

TEKNIK OCH TEKNOLOGIER: TEKNIK OCH TEKNO ...; och Industriell biot ...; och Bioprocessteknik

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.