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Energies 2019, 12(3), 532;

Environmental Life Cycle Assessment of Biogas as a Fuel for Transport Compared with Alternative Fuels

Ostfold Research, Stadion 4, 1671 Kråkerøy, Norway
Author to whom correspondence should be addressed.
Received: 30 December 2018 / Revised: 26 January 2019 / Accepted: 1 February 2019 / Published: 7 February 2019
(This article belongs to the Special Issue Production and Utilization of Biogas)
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Upgraded biogas, also known as biomethane, is increasingly being used as a fuel for transport in several countries and is regarded as an environmentally beneficial option. There are, nevertheless, few studies documenting the environmental impacts of biogas as a transport fuel compared with the alternatives on the market. In this study, life cycle assessment (LCA) methodology was applied to compare the environmental performance of biogas used as a fuel for bus transport with natural gas, electricity fueled buses, biodiesel, and fossil diesel. A sensitivity analysis was performed for the biogas alternative to assess the importance of the underlying assumptions. The results show that biogas has a relatively low contribution to the environmental impact categories assessed. Emissions of greenhouse gases are dependent on assumptions such as system boundaries, transport distances and methane leakages. View Full-Text
Keywords: biogas; fuel; transport; anaerobic digestion; life cycle assessment biogas; fuel; transport; anaerobic digestion; life cycle assessment

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Lyng, K.-A.; Brekke, A. Environmental Life Cycle Assessment of Biogas as a Fuel for Transport Compared with Alternative Fuels. Energies 2019, 12, 532.

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