RT Journal Article
T1 BECCS based on bioethanol from wood residues: Potential towards a carbon-negative transport and side-effects
A1 Bello Ould-Amer, Sara
A1 Galán Martín, Ángel
A1 Feijoo Costa, Gumersindo
A1 Moreira Vilar, María Teresa
A1 Guillén Gosálbez, Gonzalo
K1 Negative emission technologies
K1 Bioenergy with carbon capture and storage (BECCS)
K1 Lignocellulosic bioethanol
K1 Life cycle assessment
K1 Cradle-to-wheel
K1 Carbon-negative biofuel
AB Bioenergy with carbon capture and storage (BECCS) is gaining broad interest as an effective strategy to go beyond carbon neutrality. So far, most of the work on BECCS focused on power systems, while its application to the transport sector has received much less attention. To contribute to filling this gap, this work investigates the potential of BECCS as a carbon-negative strategy in the transport sector by applying process modelling and life cycle assessment (LCA) to bioethanol production from lignocellulosic waste. The process was analyzed following a cradle-to-wheel approach, i.e., from biomass growth to the combustion of biofuel in the cars, assuming that the CO2 emitted in the fermentation and cogeneration units is captured, compressed and transported to be stored permanently in geological sites. Several scenarios differing in the bioethanol-gasoline blends (10–85% bioethanol) were considered for a functional unit of 1 km of distance travelled, comparing with fossil-based gasoline. Our results show that blends above 85% (ethanol/gasoline) could have the potential to deliver a net-negative emissions balance of −2.74 kg CO2 eq per 100 km travelled and up to −5.05 kg CO2 eq per 100 km using a low carbon electricity source. The final amount of net CO2 removal is highly dependent on the carbon intensity of the electricity and the heating utilities. Biofuels blends could, however, lead to burden-shifting in eutrophication, ozone depletion and formation, toxicity, land use, and water consumption. This work highlights the potential of BECCS in the transport sector, and the need to analyze impacts beyond climate change in future studies to avoid shifting burdens to other categories
PB Elsevier
SN 0306-2619
YR 2020
FD 2020
LK http://hdl.handle.net/10347/24210
UL http://hdl.handle.net/10347/24210
LA eng
NO Applied Energy. Volume 279, 1 December 2020, 115884
NO This contribution was supported by the European project iFermenter (Grant Agreement 790507). S. Bello, G. Feijoo and M.T. Moreira belong to the Galician Competitive Research Group GRC ED431C 2017/29 and to the CRETUS Strategic Partnership (ED431E 2018/01). All these programs are co-funded by FEDER (EU)
DS Minerva
RD 26 abr 2026