Life cycle assessments of selected biofuels
Description
For biofuels produced in Austria, this report presents the process steps (key process elements) that generate the most greenhouse gas emissions. The effects of land use change were also examined and taken into account in the life cycle assessment. In the production of biodiesel from rapeseed, most greenhouse gases are emitted when rapeseed is grown in the field (85%). Bioethanol and biogas production generate the most greenhouse gas emissions in the fermentation phase (fermentation 66% for bioethanol, refining 88% for biogas). If the effects of land-use change are taken into account in the life cycle assessment, greenhouse gas emissions from biodiesel and especially from biogas continue to occur compared to fossil fuels. In the case of bioethanol, on the other hand, the consideration of direct and indirect land-use change can reverse the greenhouse gas balance compared to gasoline.
Resources
| Name |
Format |
Description |
Link |
|
33 |
|
https://www.umweltbundesamt.at/fileadmin/site/publikationen/REP0360.pdf |
|
33 |
|
https://www.umweltbundesamt.at/fileadmin/site/publikationen/REP0360.pdf |
Tags
- biokraftstoff
- opendocument