TY - JOUR
T1 - Potential CO2 savings through biomethane generation from municipal waste biogas
AU - Starr, Katherine
AU - Gabarrell, Xavier
AU - Villalba, Gara
AU - Talens Peiro, Laura
AU - Lombardi, Lidia
N1 - Funding Information:
The authors of this study would like to thank the European Commission Life+ project UPGAS-LOWCO2 (LIFE08/ENV/IT/000429) programme for its financial support.
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2014/3/1
Y1 - 2014/3/1
N2 - An alternative source of methane that can also reduce the greenhouse gas effect is one that comes from the upgrading of biogas. This paper studies eight technologies through life cycle assessment (LCA). Six of the technologies are ones that are already on the market and the two others are novel technologies that use carbon mineralization to store CO2 upon their removal. The two novel technologies include alkaline with regeneration (AwR) and bottom ash upgrading (BABIU). These technologies use waste rich in calcium, from municipal solid waste incinerators (MSWI), to store the CO2 from biogas. Among all conventional technologies, high pressure water scrubbing and chemical scrubbing with amine had the lowest CO2 impacts. Of the novel technologies BABIU saves 10% more CO2 than AwR. An uncertainty analysis and a material flow analysis demonstrated that proximity to a MSWI is an important factor to consider. As well, it was seen that while the technology is promising it cannot be applied to an entire country if the proper infrastructure is not in place.
AB - An alternative source of methane that can also reduce the greenhouse gas effect is one that comes from the upgrading of biogas. This paper studies eight technologies through life cycle assessment (LCA). Six of the technologies are ones that are already on the market and the two others are novel technologies that use carbon mineralization to store CO2 upon their removal. The two novel technologies include alkaline with regeneration (AwR) and bottom ash upgrading (BABIU). These technologies use waste rich in calcium, from municipal solid waste incinerators (MSWI), to store the CO2 from biogas. Among all conventional technologies, high pressure water scrubbing and chemical scrubbing with amine had the lowest CO2 impacts. Of the novel technologies BABIU saves 10% more CO2 than AwR. An uncertainty analysis and a material flow analysis demonstrated that proximity to a MSWI is an important factor to consider. As well, it was seen that while the technology is promising it cannot be applied to an entire country if the proper infrastructure is not in place.
KW - Biogas
KW - Carbon capture
KW - Carbon mineralization
KW - Life cycle assessment
KW - Sustainability
UR - http://www.scopus.com/inward/record.url?scp=84896722088&partnerID=8YFLogxK
U2 - 10.1016/j.biombioe.2014.01.023
DO - 10.1016/j.biombioe.2014.01.023
M3 - Article
SN - 0961-9534
VL - 62
SP - 8
EP - 16
JO - Biomass and Bioenergy
JF - Biomass and Bioenergy
ER -
