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Gas Hydrates as a Means for Biogas and Biomethane Distribution

Ahmadi Moghaddam, Elham and Larsolle, Anders and Tidåker, Pernilla and Nordberg, Åke (2021). Gas Hydrates as a Means for Biogas and Biomethane Distribution. Frontiers in Energy Research. 9 , 568879
[Research article]

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Abstract

Biomethane is receiving great attention as a renewable energy gas with lower environmental impacts and diversified sources of production. However, availability of gas infrastructure is an important factor in biomethane development and use. Biomethane can be distributed by the natural gas or local biogas grid. Biomethane can also be road-transported as compressed biomethane (CBG) or liquefied bio-methane (LBG). Biomethane could be distributed via gas hydration technology, where methane molecules are physically trapped within the crystalline structures of frozen host water molecules as gas hydrate compounds. Using life cycle assessment methodology, this study compared the energy performance and climate impact of two gas hydrate scenarios, biogas hydrate and biomethane hydrate, with that of a base case distributing biomethane as CBG. The technical system, from biogas upgrading, hydration, compression and road transport to filling station of biomethane as CBG, was included in the analysis. Results of this study show that distribution of biomethane as gas hydrates had a lower energy performance and higher climate impact than compressed biomethane distribution. The low energy performance was due to high electricity demand in hydrate formation and dissociation processes. The gas hydrate scenarios also had higher climate impacts as a result of high methane losses from hydrate formation and dissociationdissociation and emissions related to energy source use. Biogas upgrading to biomethane also significantly contributed to methane losses and climate impact of the scenarios studied.

Authors/Creators:Ahmadi Moghaddam, Elham and Larsolle, Anders and Tidåker, Pernilla and Nordberg, Åke
Title:Gas Hydrates as a Means for Biogas and Biomethane Distribution
Series Name/Journal:Frontiers in Energy Research
Year of publishing :2021
Volume:9
Article number:568879
Number of Pages:11
Publisher:FRONTIERS MEDIA SA
ISSN:2296-598X
Language:English
Publication Type:Research article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 2 Engineering and Technology > 207 Environmental Engineering > Energy Systems
Keywords:biogas hydrate, biomethane hydrate, compressed biomethane, life cycle assessment, primary energy inputs, climate impact
URN:NBN:urn:nbn:se:slu:epsilon-p-111798
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-111798
Additional ID:
Type of IDID
DOI10.3389/fenrg.2021.568879
Web of Science (WoS)000641574100001
ID Code:23484
Faculty:NJ - Fakulteten för naturresurser och jordbruksvetenskap
Department:(NL, NJ) > Dept. of Energy and Technology
Deposited By: SLUpub Connector
Deposited On:14 May 2021 08:03
Metadata Last Modified:14 May 2021 08:11

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